CN101363335B - Timing chain-driven and engine oil pump drive system - Google Patents
Timing chain-driven and engine oil pump drive system Download PDFInfo
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- CN101363335B CN101363335B CN 200810195834 CN200810195834A CN101363335B CN 101363335 B CN101363335 B CN 101363335B CN 200810195834 CN200810195834 CN 200810195834 CN 200810195834 A CN200810195834 A CN 200810195834A CN 101363335 B CN101363335 B CN 101363335B
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- oil pump
- timing chain
- chain
- sprocket
- drive system
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Abstract
本发明涉及一种正时链传动及机油泵驱动系统，包括呈双排齿状的曲轴链轮，其一排上安装绕过进、排气链轮的正时链条，另一排上安装绕过机油泵链轮的机油泵链条，机油泵链轮位于曲轴链轮的正下方。本发明在双排齿状的曲轴链轮上分别安装正时链条和机油泵链条，使曲轴链轮通过正时链条和机油泵链条分别驱动进、排气链轮和机油泵链轮，采用链传动代替以往的皮带传动，避免了更换皮带，机油泵链轮布置在曲轴链轮的正下方，节省了发动机的空间。
The invention relates to a timing chain drive and oil pump drive system, which comprises double-row toothed crankshaft sprockets, a timing chain bypassing the intake and exhaust sprockets is installed on one row, and a winding sprocket is installed on the other row. Oil pump chain through the oil pump sprocket, which is directly below the crankshaft sprocket. The present invention respectively installs the timing chain and the oil pump chain on the double-row toothed crankshaft sprocket, so that the crankshaft sprocket drives the intake and exhaust sprockets and the oil pump sprocket respectively through the timing chain and the oil pump chain. The transmission replaces the previous belt drive, avoiding the replacement of the belt, and the oil pump sprocket is arranged directly below the crankshaft sprocket, saving the space of the engine.
Description
Technical field
The present invention relates to the motor car engine transmission field, especially a kind of timing chain transmission and engine oil pump drive system for dual overhead camshaft engine V.
Background technique
The oil pump of the lubrication system of present engine is axial arranged along crankshaft sprocket, this mode motor is seemed volume is larger; For dual overhead camshaft engine V, when belt transmission was adopted in the timing transmission, it was dustproof to the space, and grease proofing conditional request is higher, in addition, after belt uses a period of time, the phenomenon such as delamination easily occurs, tear, break, skid.
Summary of the invention
The object of the present invention is to provide a kind of by chain transmission, little, as to be applicable to dual overhead camshaft engine V timing chain transmission and engine oil pump drive system take up room.
For achieving the above object, a kind of timing chain transmission provided by the invention and engine oil pump drive system, comprise the crankshaft sprocket that is double dentation, wherein the timing chain of inlet and outlet sprocket wheel is walked around in the upper installation of a row, the upper oil pump chain of walking around the oil pump sprocket wheel of installing of another row, oil pump sprocket wheel be positioned at crankshaft sprocket under.
The present invention installs respectively timing chain and oil pump chain on the crankshaft sprocket of double dentation, make crankshaft sprocket by timing chain and oil pump chain drive into respectively, exhaust sprocket and oil pump sprocket wheel, adopt chain transmission replacement belt transmission in the past, avoided the replacing belt, the oil pump sprocket wheel be arranged in crankshaft sprocket under, saved the space of motor.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of movable guiding rail and stretcher among the present invention.
Embodiment
A kind of timing chain transmission and engine oil pump drive system, comprise the crankshaft sprocket 1 that is double dentation, wherein upper installation of a row walked around import/exhaust sprocket wheel 2,3 timing chain 5, the upper oil pump chain 6 of walking around oil pump sprocket wheel 4 of installing of another row, oil pump sprocket wheel 4 be positioned at crankshaft sprocket 1 under, with oil pump sprocket wheel 4 be arranged on crankshaft sprocket 1 under, shortened on the one hand the length of required chain between the two, reduce the number of chain guide, avoid chain in the process of transmitting, to misplace; On the other hand, compare with the arrangement along the axial arranged oil pump sprocket wheel 4 of crankshaft sprocket 1 in the past, the present invention has saved the space of motor fore-and-aft direction.Positive apparent direction of the present invention refers to face the direction at crankshaft sprocket 1 place, and crankshaft sprocket 1 clockwise direction rotates.
In the present invention, timing chain 5 adopts quiet chain to reduce the noise in the engine operation process, and oil pump chain 6 adopts roller chain.Import/exhaust sprocket wheel 2,3 numbers of teeth are 2:1 with the ratio of crankshaft sprocket 1 number of teeth, oil pump sprocket wheel 4 is 1:1.1 with the ratio of crankshaft sprocket 1 number of teeth, this structure is guaranteed when engine operation, the rotating speed of crankshaft sprocket 1 is the twice of import/exhaust sprocket wheel 2,3 rotating speeds, simultaneously, the rotating speed of oil pump sprocket wheel 4 less than and near the rotating speed of crankshaft sprocket 1, the present invention can be applied on the rev-happy engine, reliable operation, characteristics of compact layout.
In conjunction with Fig. 1,2, the pilled-in selvedge of timing chain 5, be that timing chain 5 places between crankshaft sprocket 1 and the exhaust sprocket 3 are provided with fixed guide 9, it is wear plate 91 that fixed guide 9 adopts wear-resisting tinsel with timing chain 5 contacted parts, wear plate 91 is installed on the supporting plate 92 of steel, the junction that connects between the sheet metal 93 of fixed guide 9 and the supporting plate 92 forms guide groove, and timing chain 5 can slide in guide groove, and sheet metal 93 is fixed on the engine cylinder-body by bolt 94.
In conjunction with Fig. 1,2, the slack list of timing chain 5, be that timing chain 5 places between crankshaft sprocket 1 and the air inlet sprocket wheel 2 are provided with movable guiding rail 7, an end of movable guiding rail 7 is hinged by bolt 71 and motor, and movable guiding rail 7 can freely rotate around the polished rod part of bolt 71, the other end of movable guiding rail 7 is provided with tension device, in the present invention, tension device adopts stretcher 8, when timing chain 5 relaxes, stretcher 8 is upspring, timing chain 5 tensionings; Otherwise, if timing chain 5 is in the state of over-tension, then pressure is passed to stretcher 8 with compensator or trimmer pressure.As seen, 5 places arrange stretcher 8 at timing chain, can control the elasticity of timing chain 5, reduce the friction and wear between chain and the guide rail.In addition, offering through hole 72 at movable guiding rail 7 is oil groove, the entry end of through hole 72 is that oil outlet is communicated with the piston mouth of stretcher 8, the outlet end of through hole 72 is connected mutually with timing chain 5, stretcher 8 is from starting power traction oil, the machine oil that flows out from the piston crown of stretcher 8 on timing chain 5, is realized lubricated to timing chain 5 by through hole 72 notes.
In conjunction with Fig. 1, timing chain 5 places between the described import/exhaust sprocket wheel 2,3 are provided with the first chain guide 12, because the timing chain 5 between the import/exhaust sprocket wheel 2,3 belongs to the free segment chain, this position lacks support zone to be supported, and the first chain guide 12 is set can effectively prevents from misplacing between sprocket wheel and the chain.One side of the oil pump chain 6 between crankshaft sprocket 1 and the oil pump sprocket wheel 4 is provided with the second chain guide 10, the second chain guides 10 and is provided with spring sheet 11, presses down spring sheet 11 to produce pretightening force, and its effect is similar with stretcher 8.Therefore only oil pump chain 6 is compared with timing chain 5, and oil pump chain 6 is shorter, needs in a side of oil pump chain 6 the second chain guide 10 to be installed and draws oil pump chain 6 in order to holder and get final product.As seen, free segment chain between crankshaft sprocket 1, oil pump sprocket wheel 4, import/exhaust sprocket wheel 2,3 all adopts the chain guide holder to draw, avoided chain off-limits beating in the process of operation, and, the guide rail that contacts with chain adopts reinforced high-abrasive material to make, both kept enough rigidity, and avoided again wearing and tearing between guide rail and the chain.
In sum, core of the present invention is to adopt the chain transmission to substitute Synchronous Belt Drive in the past, need not the transmission part of the system that changes, in addition, oil pump sprocket wheel 4 be arranged in crankshaft sprocket 1 under, saved large quantity space.The present invention can be applied on the rev-happy engine, reliable operation, characteristics of compact layout.
Claims (8)
1. a timing chain transmission and engine oil pump drive system, it is characterized in that: comprise the crankshaft sprocket (1) that is double dentation, the upper timing chain (5) of walking around inlet and outlet sprocket wheel (2,3) of installing of one row, the upper oil pump chain (6) of walking around oil pump sprocket wheel (4) of installing of another row, oil pump sprocket wheel (4) be positioned at crankshaft sprocket (1) under; The ratio of described inlet and outlet sprocket wheel (2, the 3) number of teeth and crankshaft sprocket (1) number of teeth is 2: 1, and oil pump sprocket wheel (4) is 1: 1.1 with the ratio of crankshaft sprocket (1) number of teeth.
2. timing chain transmission according to claim 1 and engine oil pump drive system, it is characterized in that: the timing chain (5) between described crankshaft sprocket (1) and the inlet and outlet sprocket wheel (2,3) locates to be provided with chain guide.
3. timing chain transmission according to claim 1 and engine oil pump drive system, it is characterized in that: the timing chain (5) between the described inlet and outlet sprocket wheel (2,3) locates to be provided with the first chain guide (12).
4. timing chain transmission according to claim 1 and engine oil pump drive system, it is characterized in that: a side of the oil pump chain (6) between described crankshaft sprocket (1) and the oil pump sprocket wheel (4) is provided with the second chain guide (10).
5. timing chain transmission according to claim 4 and engine oil pump drive system, it is characterized in that: the pilled-in selvedge section of described timing chain (5) is provided with for the fixed guide (9) that supports timing chain (5), the slack list section of timing chain (5) is provided with for the movable guiding rail (7) that supports timing chain (5), an end installation tensioner of movable guiding rail (7).
6. timing chain transmission according to claim 5 and engine oil pump drive system is characterized in that: described the second chain guide (10) is provided with for the spring sheet (11) of regulating oil pump chain (6) elasticity.
7. timing chain transmission according to claim 6 and engine oil pump drive system is characterized in that: described tension device employing stretcher (8).
8. timing chain transmission according to claim 6 and engine oil pump drive system, it is characterized in that: offer through hole (72) on the described movable guiding rail (7), the one end is communicated with the piston mouth of stretcher (8), and its other end is towards timing chain (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810195834 CN101363335B (en) | 2008-09-03 | 2008-09-03 | Timing chain-driven and engine oil pump drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810195834 CN101363335B (en) | 2008-09-03 | 2008-09-03 | Timing chain-driven and engine oil pump drive system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101363335A CN101363335A (en) | 2009-02-11 |
| CN101363335B true CN101363335B (en) | 2013-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810195834 Expired - Fee Related CN101363335B (en) | 2008-09-03 | 2008-09-03 | Timing chain-driven and engine oil pump drive system |
Country Status (1)
| Country | Link |
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| CN (1) | CN101363335B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9121474B2 (en) * | 2011-06-30 | 2015-09-01 | Ford Global Technologies, Llc | Engine drive system |
| DE102013219073A1 (en) * | 2013-09-23 | 2015-03-26 | Schaeffler Technologies Gmbh & Co. Kg | Clamping device with a ventilation unit |
| CN105257358A (en) * | 2015-10-06 | 2016-01-20 | 周家全 | Chain transmission system of diesel engine and technological method of chain transmission system |
| CN106065794B (en) * | 2016-08-11 | 2019-09-03 | 杭州东华链条集团有限公司 | A double-chain engine timing system |
| CN106499458B (en) * | 2016-11-04 | 2019-02-19 | 安徽江淮汽车集团股份有限公司 | Optical engine timing system |
| CN107587909A (en) * | 2017-10-25 | 2018-01-16 | 奇瑞汽车股份有限公司 | A kind of diesel engine Dual Over Head Camshaft and engine oil pump drive system |
| CN110578569A (en) * | 2018-06-08 | 2019-12-17 | 舍弗勒技术股份两合公司 | P0 system integrated into engine transmission timing system and vehicle |
| CN109139829A (en) * | 2018-09-28 | 2019-01-04 | 奇瑞汽车股份有限公司 | Low friction timing chain transmission device |
| CN109372948A (en) * | 2018-09-28 | 2019-02-22 | 奇瑞汽车股份有限公司 | Timing chain transmission device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08270426A (en) | 1995-04-03 | 1996-10-15 | Suzuki Motor Corp | Oil pump fitting structure |
| CN1536246A (en) * | 2003-04-10 | 2004-10-13 | �ִ��Զ�����ʽ���� | Supporting mechanism for timing chain of engine |
| CN1550685A (en) * | 2003-04-10 | 2004-12-01 | 株式会社威伊迪 | Engine accessory drive system |
-
2008
- 2008-09-03 CN CN 200810195834 patent/CN101363335B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08270426A (en) | 1995-04-03 | 1996-10-15 | Suzuki Motor Corp | Oil pump fitting structure |
| CN1536246A (en) * | 2003-04-10 | 2004-10-13 | �ִ��Զ�����ʽ���� | Supporting mechanism for timing chain of engine |
| CN1550685A (en) * | 2003-04-10 | 2004-12-01 | 株式会社威伊迪 | Engine accessory drive system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101363335A (en) | 2009-02-11 |
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