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WO1998009114A1 - Ignition device for an outdoor stove - Google Patents

Ignition device for an outdoor stove Download PDF

Info

Publication number
WO1998009114A1
WO1998009114A1 PCT/SE1997/001444 SE9701444W WO9809114A1 WO 1998009114 A1 WO1998009114 A1 WO 1998009114A1 SE 9701444 W SE9701444 W SE 9701444W WO 9809114 A1 WO9809114 A1 WO 9809114A1
Authority
WO
WIPO (PCT)
Prior art keywords
ignition
ignition device
cartridge
burner
lighter
Prior art date
Application number
PCT/SE1997/001444
Other languages
French (fr)
Inventor
Lars Ledin
Kalevi Romo
Original Assignee
Primus Ab
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 Primus Ab filed Critical Primus Ab
Priority to AU40377/97A priority Critical patent/AU4037797A/en
Publication of WO1998009114A1 publication Critical patent/WO1998009114A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/28—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid in association with a gaseous fuel source, e.g. acetylene generator, or a container for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/10—Arrangement or mounting of ignition devices
    • F24C3/103—Arrangement or mounting of ignition devices of electric ignition devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2207/00—Ignition devices associated with burner

Definitions

  • the present invention relates to the area of portable camping stoves such as liquid petroleum gas stoves or spirit stoves.
  • the object of the invention is to provide a camping stove of the type previously known which is also provided with a permanently fitted ignition device in order to solve the problems described above in connection with lighting conventional camping stoves.
  • the object is also to provide an ignition device which equally simply and reliably lights a stove, regardless of whether the power is high or low at the moment of ignition.
  • Another object of the invention is to provide an ignition device that does not necessarily have to be attached to the camping stove in order to function.
  • the ignition device comprises a piezoelectric crystal which, upon being mechanically activated from an ignition button, generates a voltage over the crystal, which voltage in turn gives rise to a spark that ignites the fuel in the stove.
  • FIG. 1 shows a partial section through a camping stove with an ignition device in accordance with the present invention
  • FIG. 2 shows the camping stove with the ignition device, seen from above.
  • Figure 3 shows the ignition device mounted on a valve housing for the supply of fuel.
  • Figure 4 shows the burner of the camping stove arranged in accordance with the present invention.
  • Figure 5 shows an ignition cartridge with a lighter in accordance with the present invention. DESCRIPTION OF THE INVENTION:
  • FIG 1 shows a camping stove 1 of the type under discussion, comprising a valve housing 2 arranged to be connected to a conventional fuel container.
  • the valve housing is arranged having a valve spindle 3 actuated by means of a knob 4 to open or close the flow of fuel through the valve housing 2.
  • a burner is mounted on the upper side of the valve housing and comprises a lower burner part 5 and a burner cover 6.
  • Four internal supports 7 for a container are fitted on the burner cover 6, each support being provided with an external folding support 8 for a container.
  • the burner cover 6 is provided with an angled peripheral ring 9, see also Figure 2, provided with a plurality of outflow openings 10.
  • an embodiment according to the present invention is also provided with a specially arranged ignition space 11 in the burner cover, in which space a lighter 12, preferably of piezoelectric type, is arranged to be inserted.
  • the lighter 12 comprises a centrally placed electrode 13 surrounded by an insulator 14.
  • the lighter is permanent but is detachably secured to the valve housing 2 by means of a snap connection 15.
  • the lighter 12 is provided with a non-locking ignition device 16, see also Figure 1 , in the form of a push-button.
  • the ignition device 16 runs transversely in an ignition housing 17 arranged perpendicular to the central line of the lower part 5 of the burner.
  • the ignition device 16 is spaced from the burner 5, 6 to avoid the user burning himself when lighting the stove.
  • the lighter 12 thus extends from the ignition device up to and into the burner cover 6.
  • a piezoelectric crystal, not shown, in the ignition housing is activated manually by the ignition device 16, thereby producing a spark between the tip of the electrode 13 and an ignition cartridge 18, see Figures 4 and 5, which is placed through the burner cover with its centre line parallel to the centre line of the lower burner part 5.
  • the ignition cartridge 18 is placed with its upper opening in connection with the outflow openings 10, as is also clear from Figure 2.
  • FIG. 5 shows the ignition cartridge 18 which is fitted in the burner cover 6 by the cartridge being inserted from above and secured by a flange 19 at its lower end being expanded, i.e. bent outwards.
  • the ignition cartridge 18 is also provided with at least one fuel channel 20 situated in the lower part of the cartridge, close to a restriction 21.
  • the restriction 21 is arranged to seal to some extent between the inner side of the ignition cartridge 18 and the insulator 14 inserted in the cartridge, to prevent fuel from flowing away from the lighter electrode 13.
  • the upper end part 22 of the ignition cartridge 18 also extends past the electrode 13 of the lighter 12 inserted in the ignition cartridge 18 so that fuel can remain above the insulator 14 but still in the ignition space 11.
  • the ignition cartridge 18 and insulator 14 are preferably cylindrical in shape, the insulator 14 having an outer diameter less than the inner diameter of the ignition cartridge 18.
  • the function of the ignition cartridge 18 is to allow the fuel, indicated by arrows in Figure 5, to flow in through one or more fuel channels 20 in the lower part of the cartridge, upwardly in the ignition space 11 between the cartridge wall and the insulator 14, on past the electrode 13 of the lighter, and out through the upper end part 22 of the cartridge. A spark between the electrode 13 and the ignition cartridge will immediately cause the fuel flowing in the cartridge to ignite, and thus also the fuel flowing through the outflow openings 10, thereby lighting the stove.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
  • Lighters Containing Fuel (AREA)

Abstract

Arrangement for igniting the burner (5, 6) of a portable stove (1), in which manual actuation of an igniting device (16) of an igniter (12) which is inserted in an ignition space (11) arranged in the burner (5, 6) generates a spark which ignites fuel flowing in the ignition space (11) and thereby ignites the stove.

Description

Ignition device for an outdoor stove
TECHNICAL FIELD:
The present invention relates to the area of portable camping stoves such as liquid petroleum gas stoves or spirit stoves.
BACKGROUND ART:
Existing camping stoves of this type are ignited by allowing liquid petroleum gas, for instance, to flow from a fuel container through various valves and nozzles up to a burner where it is peripherally, annularly spread and ignited with a cigarette lighter or matches. The problem is that cigarette lighters or matches are not always available or, for some reason, the lighters/matches do not function.
OBJECT OF THE INVENTION: The object of the invention is to provide a camping stove of the type previously known which is also provided with a permanently fitted ignition device in order to solve the problems described above in connection with lighting conventional camping stoves.
The object is also to provide an ignition device which equally simply and reliably lights a stove, regardless of whether the power is high or low at the moment of ignition.
Another object of the invention is to provide an ignition device that does not necessarily have to be attached to the camping stove in order to function.
BRIEF DESCRIPTION OF THE INVENTION:
The ignition device comprises a piezoelectric crystal which, upon being mechanically activated from an ignition button, generates a voltage over the crystal, which voltage in turn gives rise to a spark that ignites the fuel in the stove.
BRIEF DESCRIPTION OF THE DRAWINGS:
The invention will now be described in more detail with reference to the designations in the accompanying drawings.
Figure 1 shows a partial section through a camping stove with an ignition device in accordance with the present invention,
Figure 2 shows the camping stove with the ignition device, seen from above.
Figure 3 shows the ignition device mounted on a valve housing for the supply of fuel.
Figure 4 shows the burner of the camping stove arranged in accordance with the present invention. Figure 5 shows an ignition cartridge with a lighter in accordance with the present invention. DESCRIPTION OF THE INVENTION:
Figure 1 shows a camping stove 1 of the type under discussion, comprising a valve housing 2 arranged to be connected to a conventional fuel container. The valve housing is arranged having a valve spindle 3 actuated by means of a knob 4 to open or close the flow of fuel through the valve housing 2. A burner is mounted on the upper side of the valve housing and comprises a lower burner part 5 and a burner cover 6. Four internal supports 7 for a container are fitted on the burner cover 6, each support being provided with an external folding support 8 for a container. The burner cover 6 is provided with an angled peripheral ring 9, see also Figure 2, provided with a plurality of outflow openings 10.
Conventionally such a camping stove is lit by turning the knob 4 and thus opening the fuel flow to a relatively low level so that fuel flows into the lower part 5 of the burner, on to the burner cover 6 and out through the outflow openings 10. The stove is then lit by touching an open flame to the easily ignitable fuel flowing out through the openings 10.
Besides the conventional construction described above, an embodiment according to the present invention is also provided with a specially arranged ignition space 11 in the burner cover, in which space a lighter 12, preferably of piezoelectric type, is arranged to be inserted. The lighter 12 comprises a centrally placed electrode 13 surrounded by an insulator 14. The lighter is permanent but is detachably secured to the valve housing 2 by means of a snap connection 15.
It can be seen in Figure 3 that the lighter 12 is provided with a non-locking ignition device 16, see also Figure 1 , in the form of a push-button. The ignition device 16 runs transversely in an ignition housing 17 arranged perpendicular to the central line of the lower part 5 of the burner. The ignition device 16 is spaced from the burner 5, 6 to avoid the user burning himself when lighting the stove. The lighter 12 thus extends from the ignition device up to and into the burner cover 6. A piezoelectric crystal, not shown, in the ignition housing is activated manually by the ignition device 16, thereby producing a spark between the tip of the electrode 13 and an ignition cartridge 18, see Figures 4 and 5, which is placed through the burner cover with its centre line parallel to the centre line of the lower burner part 5. The ignition cartridge 18 is placed with its upper opening in connection with the outflow openings 10, as is also clear from Figure 2.
Figure 5 shows the ignition cartridge 18 which is fitted in the burner cover 6 by the cartridge being inserted from above and secured by a flange 19 at its lower end being expanded, i.e. bent outwards. The ignition cartridge 18 is also provided with at least one fuel channel 20 situated in the lower part of the cartridge, close to a restriction 21. The restriction 21 is arranged to seal to some extent between the inner side of the ignition cartridge 18 and the insulator 14 inserted in the cartridge, to prevent fuel from flowing away from the lighter electrode 13. The upper end part 22 of the ignition cartridge 18 also extends past the electrode 13 of the lighter 12 inserted in the ignition cartridge 18 so that fuel can remain above the insulator 14 but still in the ignition space 11.
The ignition cartridge 18 and insulator 14 are preferably cylindrical in shape, the insulator 14 having an outer diameter less than the inner diameter of the ignition cartridge 18.
The function of the ignition cartridge 18 is to allow the fuel, indicated by arrows in Figure 5, to flow in through one or more fuel channels 20 in the lower part of the cartridge, upwardly in the ignition space 11 between the cartridge wall and the insulator 14, on past the electrode 13 of the lighter, and out through the upper end part 22 of the cartridge. A spark between the electrode 13 and the ignition cartridge will immediately cause the fuel flowing in the cartridge to ignite, and thus also the fuel flowing through the outflow openings 10, thereby lighting the stove.
Several other embodiments are feasible within the scope of the invention as defined in the following claims.

Claims

1. An ignition device for a camping stove having a burner comprising a lower burner part (5) and a burner cover (6) provided with a plurality of outflow openings (10), said burner (5, 6) being provided with a cylindrical ignition space (11) in which a lighter (12) provided with an electrode and inserted from below is arranged to produce a spark due to activation of an ignition device (16), which burner is connected to a fuel container via a valve housing (2), characterized in that the ignition space is formed by a cylindrical ignition cartridge (18), open at the top and passing through the burner cover (6), which cartridge is situated with its upper opening in connection with the outflow openings (10).
2. An ignition device as claimed in claim 1, characterized in that the lighter (12) is permanent but is detachably inserted in the burner (5, 6).
3. An ignition device as claimed in claim 2, characterized in that the centre line of the ignition cartridge (18) is arranged parallel with the centre line of the lower part (5) of the burner.
4. An ignition device as claimed in any of claims 1-3, characterized in that the lighter (12) is piezoelectric.
5. An ignition device as claimed in claim 4, characterized in that the ignition cartridge (18) is provided with at least one fuel channel (20).
6. An ignition device as claimed in any of claims 1-5, characterized in that the ignition cartridge (18) is provided with a restriction (21) to prevent fuel from flowing in the direction away from the electrode (13).
7. An ignition device as claimed in any of the preceding claims, characterized in that the lighter (12) is provided with an insulator (14) surrounding the electrode (13) and having an outer dimension less than the inner dimension of the ignition cartridge (18).
8. An ignition device as claimed in claim 7, characterized in that the lighter (12) with its ignition device (16) is mounted on the valve housing (2).
9. An ignition device as claimed in either of claims 7-8, characterized in that the upper end portion (22) of the ignition cartridge (18) extends axially past the electrode (13) of the lighter (12) inserted in the ignition cartridge (18).
PCT/SE1997/001444 1996-08-29 1997-08-28 Ignition device for an outdoor stove WO1998009114A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU40377/97A AU4037797A (en) 1996-08-29 1997-08-28 Ignition device for an outdoor stove

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9603139A SE513251C2 (en) 1996-08-29 1996-08-29 Ignition device for leisure kitchens
SE9603139-8 1996-08-29

Publications (1)

Publication Number Publication Date
WO1998009114A1 true WO1998009114A1 (en) 1998-03-05

Family

ID=20403701

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1997/001444 WO1998009114A1 (en) 1996-08-29 1997-08-28 Ignition device for an outdoor stove

Country Status (3)

Country Link
AU (1) AU4037797A (en)
SE (1) SE513251C2 (en)
WO (1) WO1998009114A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1018622A1 (en) * 1999-01-08 2000-07-12 Snow Peak, Inc. Burner for portable gas cooking stove
WO2001038797A1 (en) * 1999-11-24 2001-05-31 Touchlite Co., Ltd. Portable gas cooking range
US20140290640A1 (en) * 2013-03-26 2014-10-02 Kovea Co., Ltd. Hose burner having folding type supporting leg
CN106322376A (en) * 2015-07-10 2017-01-11 林内株式会社 Stove burner
CN106338062A (en) * 2015-07-15 2017-01-18 林内株式会社 Combustor for stove

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE520049C2 (en) * 2001-09-06 2003-05-13 Primus Ab Piezo lighters for igniting a fuel mixture at an outdoor air device
CN104832924B (en) * 2014-02-10 2017-07-07 株式会社Kovea Possesses the burner in fuel adjusting portion

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1344610A (en) * 1969-11-29 1974-01-23 Cannon Ind Ltd Boiling burners for hotplates of domestic gas cookers
GB1572096A (en) * 1977-04-01 1980-07-23 Burco Dean Ltd Gas burners
US4302181A (en) * 1980-02-25 1981-11-24 Weber-Stephen Products Co. Piezoelectric igniter apparatus for gas grill
US4943232A (en) * 1990-01-24 1990-07-24 Lin Whang Tung Ignition device for a gas burner
US5336084A (en) * 1993-06-09 1994-08-09 The Coleman Company, Inc. Liquid fuel campstove with electronic ignition

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1344610A (en) * 1969-11-29 1974-01-23 Cannon Ind Ltd Boiling burners for hotplates of domestic gas cookers
GB1572096A (en) * 1977-04-01 1980-07-23 Burco Dean Ltd Gas burners
US4302181A (en) * 1980-02-25 1981-11-24 Weber-Stephen Products Co. Piezoelectric igniter apparatus for gas grill
US4943232A (en) * 1990-01-24 1990-07-24 Lin Whang Tung Ignition device for a gas burner
US5336084A (en) * 1993-06-09 1994-08-09 The Coleman Company, Inc. Liquid fuel campstove with electronic ignition

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1018622A1 (en) * 1999-01-08 2000-07-12 Snow Peak, Inc. Burner for portable gas cooking stove
US6213760B1 (en) 1999-01-08 2001-04-10 Snow Peak, Inc. Burner for portable gas cooking stove
WO2001038797A1 (en) * 1999-11-24 2001-05-31 Touchlite Co., Ltd. Portable gas cooking range
US6877981B1 (en) 1999-11-24 2005-04-12 Chung-Il Kim Portable gas cooking range
US20140290640A1 (en) * 2013-03-26 2014-10-02 Kovea Co., Ltd. Hose burner having folding type supporting leg
CN106322376A (en) * 2015-07-10 2017-01-11 林内株式会社 Stove burner
CN106322376B (en) * 2015-07-10 2019-06-18 林内株式会社 Burner for stove
CN106338062A (en) * 2015-07-15 2017-01-18 林内株式会社 Combustor for stove

Also Published As

Publication number Publication date
SE9603139L (en) 1998-03-01
SE9603139D0 (en) 1996-08-29
AU4037797A (en) 1998-03-19
SE513251C2 (en) 2000-08-07

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