NL8801053A - Expansion chamber and pressure regulator - has integrated flow control mechanism for liquefied petroleum gas from tank to IC engine - Google Patents

Expansion chamber and pressure regulator - has integrated flow control mechanism for liquefied petroleum gas from tank to IC engine Download PDF

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Publication number
NL8801053A
NL8801053A NL8801053A NL8801053A NL8801053A NL 8801053 A NL8801053 A NL 8801053A NL 8801053 A NL8801053 A NL 8801053A NL 8801053 A NL8801053 A NL 8801053A NL 8801053 A NL8801053 A NL 8801053A
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Netherlands
Prior art keywords
pressure
chamber
gas
engine
pressure regulator
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NL8801053A
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Dutch (nl)
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Auto Gas Mannessen B V
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.)
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Application filed by Auto Gas Mannessen B V filed Critical Auto Gas Mannessen B V
Priority to NL8801053A priority Critical patent/NL8801053A/en
Publication of NL8801053A publication Critical patent/NL8801053A/en

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Classifications

    • 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
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/06—Apparatus for de-liquefying, e.g. by heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D19/00—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures
    • F02D19/06—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
    • F02D19/0639—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels
    • F02D19/0642—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions
    • F02D19/0647—Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed characterised by the type of fuels at least one fuel being gaseous, the other fuels being gaseous or liquid at standard conditions the gaseous fuel being liquefied petroleum gas [LPG], liquefied natural gas [LNG], compressed natural gas [CNG] or dimethyl ether [DME]
    • 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
    • F02M13/00—Arrangements of two or more separate carburettors; Carburettors using more than one fuel
    • F02M13/08—Carburettors adapted to use liquid and gaseous fuels, e.g. alternatively
    • 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
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
    • F02M21/0239—Pressure or flow regulators therefor
    • 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
    • F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
    • F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
    • F02M21/0218—Details on the gaseous fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02M21/0248—Injectors
    • F02M21/0278—Port fuel injectors for single or multipoint injection into the air intake system
    • 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
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

The liquid gas is fed via the input of the expansion chamber and regulator to a heat exchanger heated by the engine cooling water. The evaporated gas is fed to a first stage regulator, where the pressure is stabilised w.r.t. the load, by a connection to the variable manifold under-pressure in the membrane chamber. The gas flows to a needle valve which remains closed when the engine is not running. When the engine is running, differential pressures on a second membrane adjusts the position of the pin in the valve seat. If liquid petrol is being pumped to the engine, the pressure in the petrol feed line operates on the rear end of the valve pin and prevents any gas flow to the engine. The valves for ignition pulses and fuel pressure can be electronically synchronised by a control unit. (9pp Dwg.No.0/1 Original not reproducible :).

Description

- 1 -- 1 -

VV

ée

Verdamper/drukregelaar met geïntegreerde doseerinrichting.Evaporator / pressure regulator with integrated dosing device.

De uitvinding heeft betrekking op gastoevoersystemen voor toepassing in verbrandingsmotoren voorzien van een druk- en volumeregelaar voor het met de gewenste druk en hoeveelheid, via een toevoerleiding, toevoeren van gas 5 aan een luchtaanzuigkanaal van de motor, waarbij de toevoerleiding van het gas met tenminste 1 inspuitorgaan op het luchtaanzuigkanaal aansluitbaar is.The invention relates to gas supply systems for use in combustion engines, provided with a pressure and volume control for supplying gas 5 to an air intake duct of the engine with the desired pressure and quantity, via a supply line, the supply line of the gas having at least 1 the injection device can be connected to the air intake duct.

Een dergelijke verdamper/drukregelaar is bekend uit de ter inzage gelegde Nederlandse octrooiaanvragen 10 8600062 en 8600611. Gasinstallaties met deze bekende verdamper/drukregelaar hebben kritische instelmogelijkheden die slechts door een externe doseerinrichting met een als bezwaarlijk te ervaren extra luchtmeetklep bereikt kunnen worden.Such an evaporator / pressure regulator is known from the Netherlands patent applications 10 8600062 and 8600611 laid open to public inspection. Gas installations with this known evaporator / pressure regulator have critical adjustment options which can only be reached by an external dosing device with an additional air measuring valve which is perceived as objectionable.

15 De uitvinding beoogt nu een verdamper/drukregelaar met een interne doseerinrichting te verschaffen, waarbij deze bezwaren op doeltreffende wijze zijn opgeheven, daarbij gebruik makend van aanwezige electronische systemen en de eveneens aanwezige vloeistofdruk waardoor 20 de inrichting voor gespecialiseerde verbrandingsmotoren toepasbaar wordt.The object of the invention is now to provide an evaporator / pressure regulator with an internal dosing device, wherein these drawbacks are effectively eliminated, making use of existing electronic systems and the liquid pressure also present, which makes the device applicable for specialized combustion engines.

De uitvinding zal hierna worden toegelicht aan de hand van de tekening, die een uitvoeringsvoorbeeld van een gastoevoersysteem met druk- en volumeregelaar 25 volgens de uitvinding weergeeft.The invention will be elucidated hereinafter with reference to the drawing, which shows an exemplary embodiment of a gas supply system with pressure and volume regulator 25 according to the invention.

.8801053 t - 2 -.8801053 t - 2 -

De tekening toont een schematische voorstelling van een verbrandingsmotor uitgevoerd met een gastoevoersys-teem voorzien van een druk- en volumeregelaar volgens de uitvinding in meer gedetailleerde doorsnede/schematische 5 voor-s tel ling.The drawing shows a schematic representation of an internal combustion engine fitted with a gas supply system provided with a pressure and volume regulator according to the invention in more detailed cross-section / schematic representation.

De wezenlijke constructie van de verdamper/drukre-gelaar met geïntegreerde doseerinrichting zal worden beschreven aan de hand van de gas- en vloeistofstromen.The essential construction of the evaporator / pressure regulator with integrated dosing device will be described on the basis of the gas and liquid flows.

De tekening toont een voorbeeld van zowel het 10 benzine- als het gas-verzorgingscirquit met alle reeds aanwezige voorzieningen.The drawing shows an example of both the petrol and gas supply cycle with all existing facilities.

Het vloeibare gas uit een niet weergegeven gastank wordt via ingang 15 van verdamper/drukregelaar 40 toegevoerd aan de warmtewisselaar 36 van de 15 verdampersectie.The liquid gas from a gas tank (not shown) is supplied via inlet 15 of evaporator / pressure regulator 40 to the heat exchanger 36 of the evaporator section.

Met behulp van warm koelwater 35 van de motor wordt hier het vloeibare gas verdampt in de warmtewisselaar 36 en gevoerd naar de eerstetrapkamer 31· De druk in de eerstetrapkamer 31 wordt door een dubbel restrictiesys-20 teem 37 lastafhankelijk gestabiliseerd door de via kanaal 30 aangesloten variabele onderdruk op membraankamer 38.With the aid of hot cooling water 35 from the engine, the liquid gas is evaporated here in the heat exchanger 36 and fed to the first-stage chamber 31 · The pressure in the first-stage chamber 31 is stabilized by a double restriction system 37, depending on the load, via the variable connected via channel 30 negative pressure on membrane chamber 38.

Vanuit eerstetrap-kamer 31 stroomt het gas naar drukkamer 19 die bij stilstaande motor volledig gesloten is. Deze kamer 19 is gesloten doordat de conus 26 25 afgesloten wordt door de regelnaald 25·The gas flows from first stage chamber 31 to pressure chamber 19, which is completely closed when the engine is stopped. This chamber 19 is closed because the cone 26 25 is closed by the control needle 25

Bij stilstaande motor wordt regelnaald 25 in de conus 26 gedrukt door de spanning van veer 27.When the engine is stopped, control needle 25 is pressed into the cone 26 by the tension of spring 27.

Door kanaal 20 kan, bij geopend ventiel 14, gas naar membraankamer 22 stromen via restrictie 33.When the valve 14 is opened, gas 20 can flow through channel 20 to membrane chamber 22 via restriction 33.

30 Vanuit membraankamer 22 kan het gas door een, in het uit-voerirfsvoorbeeld, vaste doortocht-restrictie 41 in gas-afvoerkamer 23 en vandaar via gasinjector 9 naar de motor stromen.The gas can flow from membrane chamber 22 through a, in the output example, fixed passage restriction 41 into gas discharge chamber 23 and from there via gas injector 9 to the engine.

•8801053 s - 3 - »• 8801053 s - 3 - »

De benzinedruk uit benzine-verdeelbuis 4 staat via kanaal 29 en restrictie 34 in de vloeistofkamer 24. Door ventiel 16 te openen kan de onder druk staande benzine door leiding 39 terug vloeien naar benzinetank 1.The gasoline pressure from gasoline manifold 4 passes through channel 29 and restriction 34 into the fluid chamber 24. By opening valve 16, the pressurized gasoline can flow back to gasoline tank 1 through line 39.

5 De doortocht via restrictie 34 is zodanig gekozen dat er bij maximale druk in verdeelbuis 4 en constant geopend ventiel 16 in kamer 24 geen vloeistofdruk heerstThe passage through restriction 34 is chosen such that at maximum pressure in manifold 4 and constantly open valve 16 in chamber 24 there is no liquid pressure

Door ventiel 16 pulserend te openen zal de druk in kamer 24 afhankelijk zijn van de openingstijd en frequen-10 tiepulsen van dit ventiel.By opening valve 16 in a pulsating manner, the pressure in chamber 24 will depend on the opening time and frequency pulses of this valve.

De ventielen 14 en 16 zijn electronisch vergrendeld en worden geactiveerd nadat meetwaarden voor ontsteekpulsen en benzinedruk gelijktijdig door stuurapparaat 6 zijn herkend.Valves 14 and 16 are electronically locked and are activated after measured values for ignition pulses and petrol pressure are simultaneously recognized by control device 6.

15 De inrichting werkt dan als volgt: Vanuit kamer 19 waar het gas zich onder een belasting-afhankelijke druk, zoals bekend uit de Nederlandse octrooiaanvraag 8101791» bevindt stroomt het gas na openen van ventiel 14 via restrictie 33 in kamer 22.The device then works as follows: From chamber 19, where the gas is under a load-dependent pressure, as known from Dutch patent application 8101791, the gas flows into chamber 22 via valve 33 after opening valve 14.

20 Door de doortocht middels restrictie 41 te vergro ten of te verkleinen zal bij een constante druk in kamer 19 de druk via membraan 21 op veer 27 omgekeerd evenredig zijn.By increasing or decreasing the passage by means of restriction 41, at a constant pressure in chamber 19, the pressure via membrane 21 on spring 27 will be inversely proportional.

De doortocht door de restricties 33 en 41 is 25 zodanig gekozen dat bij maximale druk in kamer 19 en constant geopend ventiel 14 de druk in kamer 22 het membraan 21 tegen de druk. van veer 27 tot de maximale uitslag zal bewegen. Hierbij wordt regelnaald 25 uit de conus 26 geschoven waardoor de maximale gastoevoer 30 vanuit kamer 19 via kamer 23 en gasinjector 9 aan de motor mogelijk wordt.The passage through the restrictions 33 and 41 is chosen such that at maximum pressure in chamber 19 and constantly open valve 14 the pressure in chamber 22 the membrane 21 against the pressure. will move from spring 27 to the maximum deflection. Control needle 25 is hereby pushed out of cone 26, so that the maximum gas supply 30 from chamber 19 via chamber 23 and gas injector 9 to the engine is possible.

.8801053 - 4 - t8801053 - 4 - t

Membraan 21 kan zich echter alleen in de richting van kamer 24 bewegen als er in kamer 24 geen vloeistof-druk heerst. In dat geval kan plunjer 28 zich dieper in kamer 24 bewegen waardoor membraan 21 kan functioneren.However, diaphragm 21 can only move in the direction of chamber 24 if there is no liquid pressure in chamber 24. In that case, plunger 28 can move deeper into chamber 24 allowing membrane 21 to function.

5 Door ventiel 14 pulserend te openen zal de druk in kamer 22 en daarmede de verplaatsing van regelnaald 25 mede afhankelijk zijn van openingstijd en frequentie van ventiel 14·By opening valve 14 in a pulsating manner, the pressure in chamber 22 and thus the displacement of control needle 25 will partly depend on opening time and frequency of valve 14.

In de startsituatie ontvangen ventiel 14 en ventiel 10 16 openingspulsen van het stuurapparaat 6. Deze openingspulsen bewerkstelligen een zodanig drukevenwicht tussen de druk in kamer 22 enerzijds en de druk van veer 27 en de vloeistofdruk in kamer 24 anderzijds, dat hierdoor regelnaald 25 zover uit de conus 26 wordt 15 verplaatst dat de benodigde hoeveelheid gas voor de startsituatie vanuit kamer 19 via kamer 23 naar gasinjector 9 aan de motor wordt toegevoerd.In the starting situation, valve 14 and valve 10 16 receive opening pulses from the control device 6. These opening pulses effect such a pressure equilibrium between the pressure in chamber 22 on the one hand and the pressure of spring 27 and the fluid pressure in chamber 24 on the other, that this causes regulating needle 25 so far out of the cone 26 is moved to supply the required amount of gas for the starting situation from chamber 19 via chamber 23 to gas injector 9 to the engine.

In deze startsituatie is de gashoeveelheid, samen met het gas dat uit kanaal 41 stroomt, voldoende om de 20 motor te laten aanslaan. De motor zal nu, afhankelijk van de bedrijfsituatie, stationair of versneld stationair draaien.In this starting situation, the amount of gas, together with the gas flowing from channel 41, is sufficient to start the engine. The engine will now idle or accelerated idle, depending on the operating situation.

De betreffende situatie wordt herkend door stuurapparaat 6 die dan middels converter 17 ventiel 14 25 en ventiel 16 met de frequentie en. openingstijden activeert.The situation in question is recognized by control device 6, which then uses converter 17 valve 14 and valve 16 with the frequency and. opening hours.

Bij het verhogen van de motorbelasting zal stuurapparaat 6 via converter 17 de openingspulsen van de ventielen 14 en 16 verhogen waardoor resp. de druk in 30 kamer 22 wordt verhoogd en de druk in vloeistofkamer 24 afneemt.When the motor load is increased, control device 6 via converter 17 will increase the opening pulses of valves 14 and 16, so that resp. the pressure in chamber 22 is increased and the pressure in fluid chamber 24 decreases.

.8801053 •i - 5 - #.8801053 • i - 5 - #

Hierdoor wordt het evenwicht tussen membraankamer 22 en vloei stof kamer 24 zodanig verstoord dat plunjer 28 en regelnaald 25 zich richting vloeistofkamer 24 zullen verplaatsen.This disturbs the balance between membrane chamber 22 and fluid chamber 24 such that plunger 28 and control needle 25 will move towards fluid chamber 24.

5 Stuurapparaat 6 zal elke mogelijke belastingsituatie herkennen waarna converter 17 middels sturing van ventielen 14 en 16 gewenste gas toevoer aan de motor zal realiseren.Control device 6 will recognize every possible load situation, after which converter 17 will realize the desired gas supply to the motor by controlling valves 14 and 16.

Hoewel de druk in vloeistofkamer 24 ook met 10 alternatieve apparatuur gerealiseerd kan worden wordt in dit uitvoerings-voorbeeld gebruik gemaakt van de aanwezige benzinedruk.Although the pressure in liquid chamber 24 can also be realized with alternative equipment, in this exemplary embodiment use is made of the petrol pressure present.

Door het pulserend openen van ventiel 16 kan de druk in vloeistofkamer 24 varieeren overeenkomstig de 15 signalen van stuurapparaat 6.Due to the pulsating opening of valve 16, the pressure in liquid chamber 24 can vary in accordance with the signals from control device 6.

Het benzine-druksysteem wordt in werking gesteld door omschakelaar 8 op positie G te schakelen waardoor converter 17 de stuursignalen van stuurapparaat 6 overzet naar besturing van ventiel 14 en ventiel 16. Met 20 keuzeschakelaar 8 op positie G is benzinetoevoer naar de motor ónmogelijk geworden omdat benzine- injector 7 niet geactiveerd wordt en gesloten blijft.The gasoline pressure system is activated by switching changeover switch 8 to position G, whereby converter 17 transfers the control signals from control unit 6 to control of valve 14 and valve 16. With 20 selector switch 8 in position G petrol supply to the engine is impossible because petrol - injector 7 is not activated and remains closed.

Stuurapparaat 6 verwerkt onder andere ook de sensor indicaties van luchtmeter 12, smoorklepschakelaar 10, 25 smoorklep 11,luchtschuif 18 en contact/startschakelaar 13 met de daaraan gekoppelde electronische motorstart'. . beveiliging.Control device 6 also processes the sensor indications of air meter 12, throttle switch 10, throttle valve 11, air slide 18 and contact / start switch 13 with the associated electronic engine start. . security.

.8801053.8801053

Claims (8)

1. Verdamper/drukregelaar met geïntegreerde doseer-inrichting voor toepassing in gastoevoersystemen voor verbrandingsmotoren, voor het met gewenste druk en hoeveelheid, via een toevoerleiding, toevoeren van gas aan 5 een luchtaanzuigkanaal van de motor, waarbij de toevoerleiding met tenminste 1 inspuitorgaan op het luchtaanzuigkanaal aansluitbaar is, methet kenmerk dat de toe te voeren hoeveelheid gas wordt bepaald door de druk in vloeistofkamer 24 en membraankamer 22.1. Evaporator / pressure regulator with integrated dosing device for use in gas supply systems for internal combustion engines, for supplying gas with a desired pressure and quantity, via a supply line, to an air intake duct of the engine, the supply line having at least 1 injection member on the air intake duct is connectable, characterized in that the amount of gas to be supplied is determined by the pressure in liquid chamber 24 and membrane chamber 22. 2. Drukregelaar volgens conclusie 1, m e t he t k e n m e r k, dat de druk in vloeistofkamer 24 wordt bepaald door de doortocht in restrictie 34·2. Pressure regulator according to claim 1, characterized in that the pressure in liquid chamber 24 is determined by the passage in restriction 34 3· Drukregelaar volgens conclusie 1, m e t h e t k e n m e r k, dat de druk in vloeistofkamer 24 wordt 15 bepaald door het pulserend openen van ventiel 16,Pressure regulator according to claim 1, characterized in that the pressure in liquid chamber 24 is determined by pulsating opening of valve 16, 4. Drukregelaar volgens conclusie 1, m e t h e t kenmerk, dat de vloeistof in de vloeistofkamer 24 benzine is dat vanuit benzinetank 1 via benzineverdeel-buis door kanaal 29 wordt toegevoerd. 204. Pressure regulator according to claim 1, characterized in that the liquid in the liquid chamber 24 is petrol which is fed from the petrol tank 1 through the channel 29 via the fuel distribution pipe. 20 5· Drukregelaar volgens conclusie 1, m e t het kenmerk, dat de gasdruk in kamer 22 wordt bepaald door de vaste doortocht in restrictie 33 en de al dan niet variabele doortocht in restrictie 41.Pressure regulator according to claim 1, characterized in that the gas pressure in chamber 22 is determined by the fixed passage in restriction 33 and the variable or non-variable passage in restriction 41. 6. Drukregelaar volgens conclusie 1, m e t he t 25 kenmerk, dat de gasdruk in kamer 22 en de vloeistofdruk in kamer 24 bepalend is voor de optimale toevoering van gasvormige brandstof aan de verbrandingsmotor. < 880 1 053 - 7 -6. Pressure regulator according to claim 1, characterized in that the gas pressure in chamber 22 and the liquid pressure in chamber 24 are decisive for the optimum supply of gaseous fuel to the combustion engine. <880 1 053 - 7 - 7. Drukregelaar volgens conclusie 1, m e t he t k e n m e r k, dat pulsarende activering van ventiel 14 de gasdruk in kamer 22 bepaalt en dat de pulserende activering van ventiel 16 de vloeistofdruk in kamer 24 5 bepaalt.7. Pressure regulator according to claim 1, characterized in that pulsating activation of valve 14 determines the gas pressure in chamber 22 and that pulsating activation of valve 16 determines the liquid pressure in chamber 24. 8. Verbrandingsmotor voorzien van een gasinstallatie en uitgevoerd met een verdamper/drukregelaar volgens voorgaande conclusies. .8801053Combustion engine provided with a gas installation and equipped with an evaporator / pressure regulator according to the preceding claims. .8801053
NL8801053A 1988-04-22 1988-04-22 Expansion chamber and pressure regulator - has integrated flow control mechanism for liquefied petroleum gas from tank to IC engine NL8801053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL8801053A NL8801053A (en) 1988-04-22 1988-04-22 Expansion chamber and pressure regulator - has integrated flow control mechanism for liquefied petroleum gas from tank to IC engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8801053 1988-04-22
NL8801053A NL8801053A (en) 1988-04-22 1988-04-22 Expansion chamber and pressure regulator - has integrated flow control mechanism for liquefied petroleum gas from tank to IC engine

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NL8801053A true NL8801053A (en) 1989-11-16

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NL8801053A NL8801053A (en) 1988-04-22 1988-04-22 Expansion chamber and pressure regulator - has integrated flow control mechanism for liquefied petroleum gas from tank to IC engine

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