EP0781910A1 - Dispositif de commande de gaz pour fixer à moteurs à combustion interne avec carburateur à membrane utilisable pour appareils de densification de sol - Google Patents

Dispositif de commande de gaz pour fixer à moteurs à combustion interne avec carburateur à membrane utilisable pour appareils de densification de sol Download PDF

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Publication number
EP0781910A1
EP0781910A1 EP96120893A EP96120893A EP0781910A1 EP 0781910 A1 EP0781910 A1 EP 0781910A1 EP 96120893 A EP96120893 A EP 96120893A EP 96120893 A EP96120893 A EP 96120893A EP 0781910 A1 EP0781910 A1 EP 0781910A1
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EP
European Patent Office
Prior art keywords
actuator
valve
shut
carburetor
stop position
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP96120893A
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German (de)
English (en)
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EP0781910B1 (fr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wacker Werke GmbH and Co KG
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Wacker Werke GmbH and Co KG
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Filing date
Publication date
Application filed by Wacker Werke GmbH and Co KG filed Critical Wacker Werke GmbH and Co KG
Publication of EP0781910A1 publication Critical patent/EP0781910A1/fr
Application granted granted Critical
Publication of EP0781910B1 publication Critical patent/EP0781910B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/02—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for hand-held tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/04—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by mechanical control linkages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D17/00—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling
    • F02D17/04—Controlling engines by cutting out individual cylinders; Rendering engines inoperative or idling rendering engines inoperative or idling, e.g. caused by abnormal conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M17/00—Carburettors having pertinent characteristics not provided for in, or of interest apart from, the apparatus of preceding main groups F02M1/00 - F02M15/00
    • F02M17/02—Floatless carburettors
    • F02M17/04—Floatless carburettors having fuel inlet valve controlled by diaphragm
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
    • 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
    • F02B75/00—Other engines
    • F02B75/02—Engines characterised by their cycles, e.g. six-stroke
    • F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
    • F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S123/00—Internal-combustion engines
    • Y10S123/11—Antidieseling

Definitions

  • the invention relates to a gas actuation device for attachment to soil compaction equipment, a membrane carburetor and a lockable connection between a fuel tank and the carburetor internal combustion engines having an actuator that can be used to change the carburetor position in several switching positions, from full load to idling in a switching position stopping the engine and back, is movable.
  • float carburettors are not suitable for applications where they are exposed to inclinations and / or strong vibrations, because this creates the risk of flooding or the carburetors are exposed to heavy wear. Soil compacting devices are often exposed to such operating situations, which is why their engines are preferably equipped with membrane carburettors.
  • Membrane carburettors of the simple series which only have one membrane for fuel control, but also carburettors with an additional second membrane for fuel delivery are much more suitable for vibration machines, however, due to the strong vibrations, but also due to wear and contamination, it cannot be assumed with certainty that these carburetors are absolutely reliably sealed after the engines are stopped.
  • shut-off device located in the line connection between the mostly higher fuel tank and the carburetor is reliably closed after the engine is stopped. Otherwise there is a risk that the motor will be flooded, e.g. in hanging engines, that the gasoline-oil mixture runs into the cylinder head, or that in the case of standing engines, the mixture flows into the crankcase of the engine.
  • the invention has for its object to provide a gas actuation device of the type described in such a way that after the engine has been stopped, the interruption of the line connection between the fuel tank and the carburetor is reliably ensured, regardless of whether the operator of the device is in need of stopping the engine is aware that the fuel tap or the respective shut-off device in the fuel line must be moved into the locked position.
  • a blocking position is arranged in the movement path of the actuator between the idle position and the stop position and is designed such that the line connection between the fuel tank and the carburetor is interrupted when passing the blocking position from the idling position to the stop position and when passing the blocking position this line connection is opened again in the opposite direction.
  • the operator only has to actuate a single control element for motor control, the individual switch positions of the control element having a logical sequence.
  • the actuator can be switched from full throttle to idle and the motor output can be increased again at any time by moving the actuator in opposite directions. If the engine is to be stopped, the movement of the actuator continues from the full throttle position to the idle position in the same direction, ie the idle position is left in the direction of the stop position. This movement initially leads to a position in which the shut-off device in the fuel line is brought into the closed position, as a result of which the engine comes to a standstill when the amount of fuel on the carburetor side of the shut-off device has been used up.
  • a short-circuit button which can be actuated by this is arranged in the movement path of the actuator.
  • a switch for switching off the interrupter line is provided instead of a short-circuit button. Since the actuator has to be transferred from the stop position to a position assigned to engine operation for the engine start, the short circuit is thus also canceled or the interrupter line is switched on again, the shut-off device is opened again and the line connection between the fuel tank and the carburetor is restored.
  • An advantageous embodiment consists in a gas actuating device with a mechanically actuated shut-off valve arranged in the line connection between the fuel tank and the carburetor, in that a mechanical actuating connection suitable for actuating the shut-off valve between the actuating element and the shut-off valve comprises a first actuator connected to the shut-off valve, which via a control cam is adjustably connected to a second actuator belonging to the actuator, according to an advantageous development the first actuator being biased into its position assigned to the open position of the shut-off valve is and under the effect of this bias in the path of the second actuator that it is pressed by this second actuator against the action of the bias in its associated position of the shut-off valve, as long as the actuator in a following the idle position and up to the stop position, including this, leading, blocking path section.
  • the actuator comprises a pivot lever which has a control cam on which the first actuator bears in an approximately radial direction with respect to the lever axis under the action of the pretension.
  • first actuator rests under the action of the bias against a stop limiting its movement and that the second actuator is assigned to the first actuator in such a way that there is an operative connection between the two actuators as long as the actuator is in its blocking path section located.
  • DD 80589 shows and describes a fuel switching device for carburetors of internal combustion engines, which in such a carburetor switches off the idling device after switching off the ignition or in overrun mode, the switching off being carried out by means of an electromagnetic valve.
  • a soil compactor 10 which is only represented by a tubular section of its frame, is operated by an internal combustion engine for gasoline fuel, of which a part of the gasifier 12 can be seen in FIG. 2, the throttle valve of which can be actuated by a lever 14.
  • a bowden cable 16 acts on the lever 14, the other end of which is connected to an adjusting lever 22 which can be pivoted about an axis 20 (FIG. 1) and together with this forms an adjusting element 18 for controlling the motor.
  • Fig. 1 this is provided with a handle 24 (Fig.3) adjusting lever 22 in its one end position, the full load position D, from which it in Fig.
  • the lever 14 is provided with an eccentric cam 26 which actuates a short-circuit button 28 when the stop position is reached and thereby immediately stops the motor.
  • Fig. 2 denotes the starting device for the engine.
  • a fuel line 32 leads from a fuel tank 30 (FIG. 3) to a shut-off valve 34 and from its outlet 36 to the carburetor 12.
  • the shut-off valve 34 contains a valve slide 40, which is biased into the open position by a spring 39 and which emerges from the valve housing 42 in one protrudes in the radial direction with respect to the axis 20 and to which a control cam 44 is assigned on the actuating lever 22.
  • This control curve 44 has a cam-like elevation 46, which is suitable for pushing the valve slide 40 into its blocking position against the action of the valve spring 39 when the actuating lever 24 reaches position B starting from position C. In the locked position of the valve slide 40, the supply of the carburetor 12 from the fuel tank 30 is completely interrupted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
EP96120893A 1995-12-29 1996-12-27 Dispositif de commande de gaz pour fixer à moteurs à combustion interne avec carburateur à membrane utilisable pour appareils de densification de sol Expired - Lifetime EP0781910B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19549113A DE19549113C1 (de) 1995-12-29 1995-12-29 Gasbetätigungsvorrichtung für zum Anbau an Bodenverdichtungsgeräte bestimmte Verbrennungsmotoren mit Membranvergaser
DE19549113 1995-12-29

Publications (2)

Publication Number Publication Date
EP0781910A1 true EP0781910A1 (fr) 1997-07-02
EP0781910B1 EP0781910B1 (fr) 2000-06-07

Family

ID=7781627

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96120893A Expired - Lifetime EP0781910B1 (fr) 1995-12-29 1996-12-27 Dispositif de commande de gaz pour fixer à moteurs à combustion interne avec carburateur à membrane utilisable pour appareils de densification de sol

Country Status (5)

Country Link
US (1) US5720250A (fr)
EP (1) EP0781910B1 (fr)
JP (1) JP3977469B2 (fr)
DE (2) DE19549113C1 (fr)
ES (1) ES2147890T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006026387B4 (de) * 2005-07-06 2007-12-27 Dynapac Compaction Equipment Ab Betätigungsvorrichtung
WO2011120705A1 (fr) 2010-04-01 2011-10-06 Bomag Gmbh Dispositif de commande des gaz pour un appareil de compactage du sol et appareil de compactage du sol possédant un tel dispositif de commande des gaz
DE102021110788A1 (de) 2021-04-27 2022-10-27 Wacker Neuson Produktion GmbH & Co. KG Kraftstoffversorgungsvorrichtung für einen Verbrennungsmotor

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6857410B2 (en) * 2002-08-12 2005-02-22 Tecumseh Products Co Engine control system
US7165536B2 (en) * 2004-06-14 2007-01-23 Tecumseh Products Company Evaporative emissions control system for small internal combustion engines
JP2007278239A (ja) 2006-04-11 2007-10-25 Mikasa Sangyo Co Ltd 振動締固め機のスロットル調整装置
US8408183B2 (en) * 2008-04-22 2013-04-02 Briggs & Stratton Corporation Ignition and fuel shutoff for engine
JP5344760B2 (ja) * 2009-10-28 2013-11-20 株式会社日立建機カミーノ 小型締固め機
DE102010005597A1 (de) * 2010-01-25 2011-07-28 BOMAG GmbH, 56154 Bodenverdichtungsgerät mit abklemmbarer Kraftstoffleitung
DE102010014898A1 (de) 2010-04-14 2011-10-20 Bomag Gmbh Tankabsperrventil mit elektrischem Schalter für ein Bodenverdichtungsgerät und Bodenverdichtungsgerät mit einem solchen Tankabsperrventil
DE102011100155A1 (de) * 2011-05-02 2012-11-08 Bomag Gmbh Betätigungseinrichtung für ein Bodenverdichtungsgerät mit Verbrennungsmotor, Bodenverdichtungsgerät mit einer solchen Betätigungseinrichtung und Betätigungsmittel
DE102015115654B4 (de) 2015-09-17 2018-10-31 Meflex Telecontrol Gmbh & Co. Kg Geber zur Gemischverstellung einer Verbrennungskraftmaschine
US11326566B2 (en) 2017-03-02 2022-05-10 Briggs & Stratton, Llc Transport valve system for outdoor power equipment
EP3369920B1 (fr) * 2017-03-02 2021-09-22 Briggs & Stratton Corporation Système de soupape de transport pour équipement d'alimentation extérieur
US11111861B2 (en) 2017-03-03 2021-09-07 Briggs & Stratton, Llc Engine speed control system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR463396A (fr) * 1913-10-08 1914-02-20 Edouard Godot Dispositif pour interrompre automatiquement l'arrivée de l'air et du carburant dans les moteurs à combustion interne et à explosion ou l'arrivée de la vapeur dans les machines à vapeur
DE674170C (de) * 1935-08-24 1939-04-06 Zenith Carburateurs Soc Gen Einrichtung bei Vergasern fuer Brennkraftmaschinen mit Biegehautbrennstoffdruckregler
DE3737667A1 (de) * 1987-11-06 1989-05-18 Stihl Maschf Andreas Vergaser fuer verbrennungsmotoren

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD80589A (fr) *
US2619185A (en) * 1950-07-27 1952-11-25 Dorus P Rudisill Safety fuel cutoff for vehicles

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR463396A (fr) * 1913-10-08 1914-02-20 Edouard Godot Dispositif pour interrompre automatiquement l'arrivée de l'air et du carburant dans les moteurs à combustion interne et à explosion ou l'arrivée de la vapeur dans les machines à vapeur
DE674170C (de) * 1935-08-24 1939-04-06 Zenith Carburateurs Soc Gen Einrichtung bei Vergasern fuer Brennkraftmaschinen mit Biegehautbrennstoffdruckregler
DE3737667A1 (de) * 1987-11-06 1989-05-18 Stihl Maschf Andreas Vergaser fuer verbrennungsmotoren

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006026387B4 (de) * 2005-07-06 2007-12-27 Dynapac Compaction Equipment Ab Betätigungsvorrichtung
WO2011120705A1 (fr) 2010-04-01 2011-10-06 Bomag Gmbh Dispositif de commande des gaz pour un appareil de compactage du sol et appareil de compactage du sol possédant un tel dispositif de commande des gaz
DE102010013618A1 (de) 2010-04-01 2011-10-06 Bomag Gmbh Gasbetätigungseinrichtung für ein Bodenverdichtungsgerät und Bodenverdichtungsgerät mit einer solchen Gasbetätigungseinrichtung
DE102021110788A1 (de) 2021-04-27 2022-10-27 Wacker Neuson Produktion GmbH & Co. KG Kraftstoffversorgungsvorrichtung für einen Verbrennungsmotor

Also Published As

Publication number Publication date
EP0781910B1 (fr) 2000-06-07
JPH09195855A (ja) 1997-07-29
DE19549113C1 (de) 1997-07-31
DE59605395D1 (de) 2000-07-13
US5720250A (en) 1998-02-24
JP3977469B2 (ja) 2007-09-19
ES2147890T3 (es) 2000-10-01

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