+

WO1994000680A1 - Procede et dispositif d'alimentation en air d'un moteur a explosion - Google Patents

Procede et dispositif d'alimentation en air d'un moteur a explosion Download PDF

Info

Publication number
WO1994000680A1
WO1994000680A1 PCT/SE1993/000599 SE9300599W WO9400680A1 WO 1994000680 A1 WO1994000680 A1 WO 1994000680A1 SE 9300599 W SE9300599 W SE 9300599W WO 9400680 A1 WO9400680 A1 WO 9400680A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
charging device
engine
housing
duct
Prior art date
Application number
PCT/SE1993/000599
Other languages
English (en)
Inventor
Lars Hedelin
Original Assignee
Fanja Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fanja Ltd. filed Critical Fanja Ltd.
Priority to AU45206/93A priority Critical patent/AU4520693A/en
Publication of WO1994000680A1 publication Critical patent/WO1994000680A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
    • F04C28/10—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber
    • F04C28/14—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids characterised by changing the positions of the inlet or outlet openings with respect to the working chamber using rotating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
    • F01C21/08—Rotary pistons
    • F01C21/0809—Construction of vanes or vane holders
    • F01C21/0818—Vane tracking; control therefor
    • F01C21/0827—Vane tracking; control therefor by mechanical means
    • F01C21/0836—Vane tracking; control therefor by mechanical means comprising guiding means, e.g. cams, rollers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B33/00—Engines characterised by provision of pumps for charging or scavenging
    • F02B33/32—Engines with pumps other than of reciprocating-piston type
    • F02B33/34—Engines with pumps other than of reciprocating-piston type with rotary pumps
    • F02B33/36—Engines with pumps other than of reciprocating-piston type with rotary pumps of positive-displacement type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B39/00—Component parts, details, or accessories relating to, driven charging or scavenging pumps, not provided for in groups F02B33/00 - F02B37/00
    • F02B39/16—Other safety measures for, or other control of, pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to a process for charging air into an internal combustion engine in accordance with the preamble to Claim 1 and an air-charging device for carry ⁇ ing out said process in accordance with the preamble to Claim 2.
  • air In order for an internal combustion engine to function optimally, i.e. with the highest possible efficiency, air must be supplied to the engine in an amount which is adapted to the amount of fuel which is to be combusted so that the engine will produce the power required at that moment.
  • the amount of air supplied and the amount of fuel supplied must thus be continually regulated and adjusted to the actual load conditions of the engine.
  • air flow to the engine intake system is achieved either solely through the suction created by the engine or by this suction supple ⁇ mented by the effect of a compressor.
  • the amount of air supplied to the engine is regulated by a throttle. It is, however, difficult to achieve in this manner precise regulation of the amount of air supplied to the engine to obtain the best possible efficiency.
  • the purpose of the present invention is to provide a process and an air-charging device, which makes possible exact regulation of the amount of air supplied to the engine in accordance with the actual air requirements of the engine, so that optimum engine efficiency can be obtained.
  • This is achieved by means of a process of the type described by way of introduction, which is charact ⁇ erized and specified in the characterizing clause of Claim 1, and by means of an air-charging device of the type described by way of introduction, which is charact- erized by the features disclosed in the characterizing clause of Claim 2.
  • Fig. 1 is a schematic end view of an internal combustion engine which is provided with a device according to the invention.
  • Fig. 2 shows a longitudinal section through a device according to a first embodiment of the invention.
  • Fig. 3 is a partially cut-away end view of the device according to Fig. 2 with certain components removed.
  • Fig. 4 shows a cross-section through a device according to Fig. 2.
  • Fig. 5 shows a longitudinal section through a device according to a second embodiment of the invention.
  • Fig. 6 shows a cross-section through a device according to Fig. 5.
  • Fig. 7 shows a schematic cross-section through portions of the device according to Fig. 5.
  • Fig. 8 shows a cross-section corresponding to Fig. 7 with the components in other positions.
  • Fig. 1 shows quite schematically an internal combustion engine 1 with a cylinder head 2 and an engine block 3.
  • the engine block 3 there is mounted a crankshaft 4.
  • the engine 1 has one or more cylinders, but the number of cylinders is of minor importance to the present inven ⁇ tion, and no specific number of cylinders is therefore specified here.
  • the engine 1 is provided with an intake system 5 and an exhaust system 6 which are only partially shown here.
  • An air charging device 7 according to the invention is coupled to the intake system 5 of the engine 1 for charging air into the internal combustion engine 1.
  • the charging device 7 takes in air through an inlet duct 8 which is provided with an air filter 9.
  • the air which the air charging device 7 takes in is usually ambient air but it is also conceivable to provide the charging device 7 with air of another temperature and/or pressure.
  • the charging device 7 does not need to be provided with air of normal make ⁇ up; rather, it is also conceivable to provide the charging device 7 with a gas or gas mixture of another composition, possibly even mixed with fuel.
  • air air
  • this term is meant also to encompass the above described variations.
  • the air charging device 7 is driven by means of a drive means 10, which in accordance with Fig. 1 is driven by means of a pulley 11 mounted on the crankshaft 4.
  • the drive means 10 drives in turn a pulley 12 which is fixed on a shaft 13 in the charging device 7.
  • the drive means 10 can be any known type of drive means, for example a chain, a toothed belt or the like.
  • the power transmission means 10-12 can be a gear transmission or some other type of power transmission.
  • Figs. 2-4 show the charging device 7 in more detail.
  • Fig. 2 reveals that the shaft 13 is mounted in bearings 14 in a housing 15.
  • the housing 15 has ends 16 and an intermediate portion 17 with which the ends 16 are joined by means of screws 18.
  • each of the ends 16 there is an end plate 19 facing the intermediate portion 17, by means of which plate a bearing 20 is mounted for rotation about an axis 21 lying spaced from the rotational axis 22 of the shaft 13 (see Fig. 3).
  • the axis 21 is thus concentrically located in the housing 15, the interior of which is circular cylindrical. Axially, the end plates 19 rest against thrust bearings 23 which are arranged between the end plates 19 and the inside of the ends 16.
  • the shaft 13 supports a circular cylindrical rotor 24, which is provided with a plurality of radial slots 25 for radial vanes 26, which are displaceable radially in the slots 25.
  • the radially outer end of each of the vanes 26 is provided with a sealing means 27 which is designed to provide a seal between the vane 26 and the housing 15.
  • the cylinder wall 28 is perforated by holes 29.
  • the housing 15 is provided with an inlet duct 30, to which the inlet pipe 8 is connected.
  • the holes 29 are arranged in a pattern which is shown with dashed lines in Fig. 2 and is intended to constitute an inlet to the interior of the housing 15.
  • the cylinder wall 28 is also provided with a delivery opening 31 which opens into a delivery duct 32 in the housing 15.
  • the delivery duct 32 is in turn connected to the air intake system 5 of the engine 1.
  • each of the vanes 26 is provided with pins 35 which extend into holder means 36 arranged in cavities 37 in the end plates 19.
  • the rotor 24 When the shaft 13 is driven by means of the drive means 10-12, the rotor 24 will rotate and the vanes 26 will sweep with their sealing means 27 along the inside sur- face of the cylinder wall 28. The vanes 26 will thus seal, on one hand, against the inside of the cylinder wall 28 and, on the other hand, against the end plates 19 and delimit separate air chambers 38, in each of which there is a specific amount of air which is transported from the inlet duct 30 to the delivery duct 32. During this transport, the air enclosed in an air chamber 38 is subjected to changes in its state which are different depending on the position of the shell 33.
  • Fig. 3 shows the shell in a position, where it covers the major portion of the holes 29 forming the inlet opening.
  • air from the inlet duct 30 will flow into an air chamber 38, the volume of which is relatively small since it is closed off when the rear vane 26, as seen in the rotational direction of the rotor 24, passes the edge of the shell 33.
  • the rotor 24 rotates clockwise, as seen in Figs. 3 and 4. The continued rotation of the rotor 24 will cause the air enclosed in the air chamber 33 to first perform work by expanding, with an accompany ⁇ ing reduction in temperature, and thereafter be subjected to a certain amount of re-compression to a suitable volume before the air is delivered through the delivery opening 31 to the delivery duct 32.
  • the air charging device 7 will deliver, for each operating cycle of each of the cylinders of the engine 1, a specific amount of air to the engine intake system 5.
  • this drive arrangement 10-12 provides a specific transmission ratio between the rotational speed of the crankshaft 4 and the rotational speed of the shaft 13 of the air charging device 7, the air charging device 7 will deliver, for each operating cycle of each of the cylinders of the engine 1, a specific amount of air to the engine intake system 5.
  • Figs. 5-8 show an air charging device 39 according to another embodiment of the invention.
  • the air charging device 39 shown in Figs. 5-8 has many similarities to the charging device 7 according to Figs. 2-4, and corre ⁇ sponding components have been provided with the same reference numerals with the addition of a prime symbol.
  • the air charging device 39 is driven in a similar manner to the charging device 7 by the engine crankshaft 4 by means of a drive arrangement 10-12.
  • the charging device 39 is also coupled, in a manner similar to the air charging device 7, between an inlet duct 8 and the intake system 5 of the engine 1.
  • the air charging device 39 comprises a housing 15' which is composed of two end pieces 16' and an intermediate portion 17', the shaft 13' of the charging device 39 being mounted in bearings 14' in the end pieces 16' .
  • the end pieces 16' there are end plates 1 ' mounted in bearings 20' for rotation about an axis 21', which is concentrically placed in the housing 15'.
  • the shaft 13' supports a rotor 24' , which rotates about the rotational axis 22' of the shaft 13'. As can be seen in Figs. 5-8, the rotational axis 22' is spaced from the axis 21' of the housing 15'.
  • the rotor 24' is provided with a number of radial slots 25', in which a number of vanes 26' are arranged.
  • the radially outer ends of the vanes 26' are provided with sealing means 27', which are in contact with the interior surface of a cylindrical drum 40.
  • Each of the vanes 26' is also provided with pins 35', by means of which each wing 26' is suspended in the end plates 19' to avoid contact between the vanes 26' and the inside of the drum 40. This contact is provided instead by means of the sealing means 27', as can be seen in Figs. 6-8.
  • the cylindrical drum 40 is joined to the radially outer portions of the end plates 19' and rotates together therewith when the rotor 24' and the vanes 26' rotates.
  • the vanes 26' and the sealing means 27' thus move very little relative to the end plates 19' and the drum 40. This movement is only limited reciprocal movement occurring as the vanes 26' move radially in the slots 25' in the rotor 24' as a result of the excentric mounting of the rotor 24' in the housing 15'.
  • the end plates 19' are provided radially inside the drum 40 with a large number of holes 41, which are arranged closely adjacent to each other around the entire periphery.
  • the holes 41 establish communication axially between an inlet duct 30' and a delivery duct 32' and the interior of the housing 15', i.e. the air chambers 33' between the vanes 26'.
  • the cover plate 42 is disposed to be moved by means of a pinion 34' and is provided with an elongated arcuate inlet opening 43.
  • the cover plate 42 is mounted for rotation about an excentric disc 44 which is securely fixed in the end piece 16' .
  • the placement of the cover plate 42 is such that between these components and the end plate 19' there is a thin air gap.
  • Turning the cover plate 42 by means of the pinion 34' will allow a greater or lesser portion of the inlet opening 43 to provide communication between the inlet duct 30' and the interior of the housing 15', i.e. the air chambers 38' between the vanes 26'. In this manner, it is possible in a manner similar to the embodiment according to Figs. 1-4, to delimit a greater or lesser amount of air in the air chambers 38' between two adjacent vanes 26'.
  • cover plate 45 which is made in a manner corresponding to the cover plate 42 and which is provided with a delivery opening 46, which provides communication between the air chambers 38' and the delivery duct 32'.
  • the cover plate 45 is mounted for rotation about an excentric disc 47 permanently mounted in the end piece 16' in a manner corresponding to the cover plate 42 described above.
  • the cover plate 45 is arranged to be rotated by a pinion (not shown) to make it possible to adjust the communication between the air chambers 38' and the delivery duct 32' .
  • the function of the air charging device 39 according to Figs. 5-8 is essentially the same as that' of the charging device 7 according to Figs. 1-4.
  • By regulating the position of the cover plate 42 it is thus possible to change the size and position of the communication between the inlet duct 30' and the air chambers 38' between adjacent vanes 26'. In this manner, it is possible to perform with the air charging device 39 the same function as was described above with reference to the air charging device 7 according to Figs. 1-4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Supercharger (AREA)

Abstract

Procédé d'aspiration de l'air dans le système d'admission (5) d'un moteur à explosion (1) au moyen d'un dispositif d'aspiration d'air (7) entraîné par le moteur et doté d'un régulateur servant à réguler le débit de l'air à l'entrée du moteur, en fonction de la demande courante d'air. Le procédé est caractérisé en ce que, pour chaque cycle de fonctionnement, un volume d'air est précisé et aspiré par le dispositif d'aspiration d'air (7), puis il subit un changement d'état de manière qu'à son arrivée dans le système d'admission (5), il se trouve dans un état essentiellement identique à celui de l'air présent dans le système d'admission (5). La régulation du débit de l'air dans le moteur (1) s'effectue par une modification du volume de chaque quantité d'air lorsqu'il est précisé. On a également prévu un dispositif d'aspiration d'air (7) destiné à mettre en ÷uvre ce procédé et pourvu d'au moins une chambre à air qui se déplace pour faire passer un volume précis d'air d'un conduit d'entrée à un conduit d'alimentation, en passant d'une position dans laquelle elle est en communication avec le conduit d'entrée, à une position dans laquelle elle est en communication avec le conduit d'alimentation, sous l'action d'un système d'entraînement (10-12) entraîné par le moteur (1) selon un rapport prédéterminé avec la rotation du vilebrequin (4). Le régulateur est adapté pour réguler le volume de chaque chambre à air lorsqu'elle est en communication avec le conduit d'entrée.
PCT/SE1993/000599 1992-06-30 1993-06-30 Procede et dispositif d'alimentation en air d'un moteur a explosion WO1994000680A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU45206/93A AU4520693A (en) 1992-06-30 1993-06-30 A method and a device for supplying air to an internal combustion engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9202020-5 1992-06-30
SE9202020A SE9202020L (sv) 1992-06-30 1992-06-30 Förfarande och anordning för inmatning av luft till en förbränningsmotor

Publications (1)

Publication Number Publication Date
WO1994000680A1 true WO1994000680A1 (fr) 1994-01-06

Family

ID=20386661

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1993/000599 WO1994000680A1 (fr) 1992-06-30 1993-06-30 Procede et dispositif d'alimentation en air d'un moteur a explosion

Country Status (3)

Country Link
AU (1) AU4520693A (fr)
SE (1) SE9202020L (fr)
WO (1) WO1994000680A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001020167A1 (fr) * 1999-09-11 2001-03-22 Driver Technology Limited Machine hydraulique rotative volumetrique
WO2003062604A3 (fr) * 2002-01-17 2003-11-27 Ea Technical Services Ltd Machine rotative a deplacement positif
WO2005080795A1 (fr) * 2004-02-25 2005-09-01 Joma-Hydromechanic Gmbh Pompe a rotor a debit volumetrique variable

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE413309C (de) * 1918-06-09 1925-05-07 Arnold Zoller Rotationskompressor fuer Explosionskraftmaschinen
DE424047C (de) * 1918-06-09 1926-01-15 Arnold Zoller Explosionskraftmaschine mit Drehkolbenkompressor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE413309C (de) * 1918-06-09 1925-05-07 Arnold Zoller Rotationskompressor fuer Explosionskraftmaschinen
DE424047C (de) * 1918-06-09 1926-01-15 Arnold Zoller Explosionskraftmaschine mit Drehkolbenkompressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001020167A1 (fr) * 1999-09-11 2001-03-22 Driver Technology Limited Machine hydraulique rotative volumetrique
WO2003062604A3 (fr) * 2002-01-17 2003-11-27 Ea Technical Services Ltd Machine rotative a deplacement positif
US7231894B2 (en) * 2002-01-17 2007-06-19 E.A. Technical Services Limited Rotary positive displacement machine
WO2005080795A1 (fr) * 2004-02-25 2005-09-01 Joma-Hydromechanic Gmbh Pompe a rotor a debit volumetrique variable

Also Published As

Publication number Publication date
AU4520693A (en) 1994-01-24
SE9202020D0 (sv) 1992-06-30
SE9202020L (sv) 1993-12-31

Similar Documents

Publication Publication Date Title
US4490622A (en) Turbocharger and adaptations thereof
US6776136B1 (en) Elliptical rotary engine
RU2125164C1 (ru) Газонагнетательная турбина с радиальным прохождением потока
EP0336617B1 (fr) Moteur à pistons à bloc-cylindres rotatif
US4236496A (en) Rotary engine
US3844117A (en) Positive displacement brayton cycle rotary engine
US10473025B2 (en) Rotary motor
US3955540A (en) Rotary internal combustion engine
US4028885A (en) Rotary engine
US3971346A (en) Rotary internal combustion engine
EP0933500A1 (fr) Machine volumétrique à piston rotatif
US5003942A (en) Rotary vaned valves
US4508089A (en) Method of regulating the charge of combustion gas delivered to an internal combustion engine
US4418663A (en) Rotary engine
US3913532A (en) Rotary engine
US5375581A (en) Internal combustion engine with supercharger of positive displacement design
US5255645A (en) Rotary valve for an internal combustion engine
WO1994000680A1 (fr) Procede et dispositif d'alimentation en air d'un moteur a explosion
EP0030230A1 (fr) Turbochargeur utilise dans un moteur a combustion interne ou turboreacteur.
US12203406B2 (en) Supercharged internal combustion engine
US4239469A (en) Seals for a rotary machine
US6868822B1 (en) Rotary piston engine
US4696268A (en) Rotary piston internal combustion engine with water injection
US2350005A (en) Internal-combustion engine
US4558669A (en) Ignition apparatus for a rotary internal combustion engine

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU BR JP KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载