WO2019137842A1 - Ensemble vanne pour la régulation de pression de gaz, système d'alimentation en carburant muni d'un ensemble vanne pour la régulation de pression de gaz - Google Patents

Ensemble vanne pour la régulation de pression de gaz, système d'alimentation en carburant muni d'un ensemble vanne pour la régulation de pression de gaz Download PDF

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Publication number
WO2019137842A1
WO2019137842A1 PCT/EP2019/050061 EP2019050061W WO2019137842A1 WO 2019137842 A1 WO2019137842 A1 WO 2019137842A1 EP 2019050061 W EP2019050061 W EP 2019050061W WO 2019137842 A1 WO2019137842 A1 WO 2019137842A1
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WO
WIPO (PCT)
Prior art keywords
valve
gas
pressure
pressure medium
control
Prior art date
Application number
PCT/EP2019/050061
Other languages
German (de)
English (en)
Inventor
Alexander Scheel
Dirk Vahle
Original Assignee
Robert Bosch Gmbh
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 Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Priority to CN201980007949.5A priority Critical patent/CN111566332B/zh
Publication of WO2019137842A1 publication Critical patent/WO2019137842A1/fr

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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
    • F02M21/0218—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
    • F02M21/0236—Multi-way valves; Multiple valves forming a multi-way valve system
    • 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
    • F02D19/02—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 gaseous fuels
    • F02D19/021—Control of components of the fuel supply system
    • F02D19/022—Control of components of the fuel supply system to adjust the fuel pressure, temperature or composition
    • 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
    • F02D19/02—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 gaseous fuels
    • F02D19/026—Measuring or estimating parameters related to the fuel supply system
    • F02D19/027—Determining the fuel pressure, temperature or volume flow, the fuel tank fill level or a valve position
    • 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
    • F02D19/0663—Details on the fuel supply system, e.g. tanks, valves, pipes, pumps, rails, injectors or mixers
    • F02D19/0673—Valves; Pressure or flow regulators; Mixers
    • F02D19/0678—Pressure or flow regulators therefor; Fuel metering valves 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
    • F02M21/023—Valves; Pressure or flow regulators in the fuel supply or return system
    • F02M21/0233—Details of actuators 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
    • F02M21/023—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
    • 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
    • F02D19/0602—Control of components of the fuel supply system
    • F02D19/0605—Control of components of the fuel supply system to adjust the fuel pressure or temperature
    • 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
    • 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
    • F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
    • F02M21/0215—Mixtures of gaseous fuels; Natural gas; Biogas; Mine gas; Landfill gas
    • 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

Definitions

  • Valve arrangement for gas pressure control fuel system with valve arrangement for gas pressure control
  • the invention relates to a valve arrangement for gas pressure regulation in a gas rail of a fuel system for supplying an internal combustion engine with a gaseous fuel gene, in particular natural gas, with the features of the preamble of claim 1. Further, the invention relates to a fuel system for supplying an internal combustion engine with a gaseous fuel, in particular with natural gas, comprising such a valve arrangement.
  • the published patent application DE 10 2016 207 743 A1 discloses a fuel system for supplying an internal combustion engine with a gaseous fuel with a device for metering the gaseous fuel to an injector.
  • the A device comprises a pressure control unit with a shut-off valve, a Druckregelven valve and a shut-off valve, which form a structural unit.
  • the shut-off valve When the shut-off valve is open gaseous fuel is metered, the gaseous fuel first passes into a high-pressure accumulator or in a gas rail to which at least one injector is connected. By opening the shut-off valve, gaseous fuel can be removed from the gas rail, so that the gas pressure in the gas rail is lowered.
  • the control of the shut-off valve and the Ab tenuventils takes place hydraulically via the control pressure in a control chamber, which is acted upon by a hydraulic rule pressure medium, namely with diesel fuel.
  • a diesel pressure control valve is also provided, which is connected to a separate diesel cycle.
  • the hydraulic control of such a pressure control unit requires the use min least one sealing element for media separation.
  • gaseous fuel can reach the area of the diesel fuel, on the other hand, the selfl fuel can reach the area of the gaseous fuel in the path of the leakage.
  • a sealing element for example, a membrane seal are.
  • a corrugated or bellows seal can be used for media separation.
  • sealing elements often have the disadvantage that their mechanical cal load capacity is limited.
  • a corrugated or bellows seal there is also a risk of a kink if the pressure difference at the seal exceeds a certain limit value.
  • a differential pressure of about 30 bar should not be exceeded.
  • the pressure applied to the outside of the well or bellows should always be greater than the pressure inside.
  • the present invention seeks to further develop a valve assembly for gas pressure control in a gas rail of a fuel system such that a secure media separation over the life of the valve assembly is achieved.
  • valve assembly is proposed with the features of claim 1.
  • Advantageous developments of the invention can be found in the dependent claims.
  • a fuel system is provided with a Ventila invention arrangement.
  • the proposed valve arrangement is used for gas pressure control in a gas rail of a fuel system for supplying an internal combustion engine with a gasförmi conditions fuel, which may be in particular natural gas.
  • the Ventilanord voltage comprises a first valve for connecting the gas rail with a high-pressure gas storage, a second valve for connecting the gas rail with a gas return and a coaxially arranged to the first and the second valve control piston, in the axial direction limited a beank with a hydraulic pressure medium beatable control room.
  • the control piston delimits, in the radial direction, a pressure medium leakage space which is separated by a sealing element from the gas Return is separated and connectable via a pressure medium shut-off valve with a pressure medium return line.
  • the pressure medium leakage amount is thus collected in the pressure medium leakage chamber and selectively discharged via the pressure medium-Ab Kunststoffventil from the pressure fluid leakage chamber.
  • the pressure in the pressure fluid leakage chamber does not rise above a predetermined limit value.
  • the pressure in the Druckmit tel-leakage chamber can be adjusted so that outside the sealing element, a higher pressure than the inside is applied.
  • the load on the sealing element can be lowered, whereby the functional reliability increases.
  • control chamber and the pressure fluid leakage chamber are each connected via an inlet throttle with a pressure medium inlet.
  • both rooms are permanently connected to the pressure medium inlet, whereby the respective inlet throttle ensures that the inlet is throttled.
  • the shut-off valve is opened to lower the pressure in the pressure fluid leakage chamber flows more than inflow. If the shut-off valve remains closed, pressure medium flows continuously through the inlet throttle into the pressure-medium leakage space so that, if required, the pressure in the pressure-medium leakage space can be lifted.
  • control chamber via a further pressure medium shut-off valve with the pressure medium return line is connected.
  • the Ab juryventile which serve to relieve the pressure fluid leakage chamber and the control chamber, each electrically, in particular electromagnetically controlled to selectively control the pressure in the pressure fluid leakage chamber or in the control room.
  • the Ab horrventile can be bound for this purpose to a control unit.
  • a pressure sensor be arranged in the pressure fluid leakage chamber and / or in the gas return.
  • the pressure applied to the outside and / or inside of the sealing element can be monitored. If a pressure sensor is provided in both rooms, the pressure difference can be determined and readjusted when exceeding a predetermined limit value via the shut-off valve assigned in the pressure medium leakage chamber.
  • the shut-off valve assigned in the pressure medium leakage chamber On the sealing element are therefore essentially only the th by the Ventil thoroughlyzei resulting pressure differences. These pressure differences are smaller than the tolerable starting value of about 30 bar. This results in positive effects towards the possible applications, functionality, durability, space and Kos th for the valve assembly for gas pressure control.
  • the at least one pressure sensor is preferably connected to a control unit, which evaluates the measured values and, if necessary, activates the shut-off valve.
  • the control unit evaluates the measured values and, if necessary, activates the shut-off valve.
  • the measured values recorded by means of a plurality of pressure sensors can be compared.
  • a certain external pressure can be set as a hard demand, so that is reacted immediately at a different measured values by changing the intrinsic pressure. It can also be a permissible over- or Unterschreitu ng a predetermined pressure difference of, for example, 10 bar stored in the control unit.
  • the proposed valve arrangement is used in such a way that a continuous electrical balance of the externally and internally applied to the sealing element pressures takes place. In this way a reliable media separation over the lifetime is achieved.
  • the sealing element is preferably a metallic corrugated or bellows, on the one hand on the control piston, on the other hand, the housing side is fixed.
  • the sealing element therefore does not substantially limit the mobility of the control piston.
  • the first valve has a valve lifter which can be moved back and forth in the axial direction and which is axially prestressed by the spring force of a spring against a valve seat.
  • the first valve may be formed in example analogous to a valve often used in high-pressure fuel pumps. In this way, existing components can be used, so that the production costs decrease.
  • the second valve has a reciprocating Chen valve piston which is axially biased by the spring force of a spring against a valve seat, wherein the valve seat is formed in the control piston.
  • the spring for biasing the valve piston may be supported on the one hand on the valve piston, on the other hand on the valve stem or on a spring plate connected to the valve stem. In this way, the valve piston can be used at the same time for actuating the valve stem.
  • the design of the valve seat in the control piston has the advantage that a compact construction valve arrangement is provided, are arranged in the control piston, valve piston and valve tappet on a common longitudinal axis.
  • control piston is designed in several parts in order to simplify the manufacture and / or the assembly of the control piston.
  • control piston is axially biased in the direction of the control chamber by the spring force of a spring. The spring helps to open the second valve.
  • the additionally proposed fuel system serves to supply an internal combustion engine with a gaseous fuel, in particular with natural gas. It is characterized in that it comprises a valve arrangement according to the invention for gas pressure regulation in a gas rail.
  • the valve assembly 1 is used to control the gas pressure in a gas rail 2 of a fuel system for supplying an internal combustion engine with a gaseous fuel, which may be in particular gas.
  • the valve arrangement 1 shown has a first valve 3 for connecting the gas rail 2 to a high-pressure accumulator 4 and a second valve 5 for connecting the gas rail 2 to a gas return 6.
  • the first Ven valve 3 has a reciprocating valve tappet 19 which is biased by a spring 20 against a valve seat 21.
  • the second valve 5 has a Ventilkol ben 22 which is biased by a spring 23 against a valve seat 24.
  • the Fe 34 is on the one hand on the valve piston 22, on the other hand supported on a plunger 19 connected to the valve spring plate 26. This is possible because the Ventilkol ben 22 and the valve stem 19 are arranged coaxially, that is lying on a common longitudinal axis A.
  • both valves 3, 5 via a control piston 7, which is arranged coaxially in Be train on the valve piston 22 and the valve stem 19 and in the axial direction Rich control chamber 8 limited, via a pressure medium inlet 15, in which an inlet throttle 13 is formed, can be acted upon by a hydraulic pressure medium.
  • the hydraulic pressure medium may be, for example, a liquid fuel, in particular diesel fuel. If the control chamber 8 is filled with hydraulic pressure medium, the control pressure applied to the control piston 7 rises at the end, so that the control piston 7 moves counter to the spring force of a spring 25 in the direction of the valve piston 22. The valve piston 22 comes to bear against the valve seat 24 and the second valve 5 closes.
  • the control pressure in the control chamber 8 is lowered.
  • a pressure medium shut-off valve 16 is opened, via which a connection of the control chamber 8 with a pressure fluid return 12 can be produced.
  • the discharge the control chamber 8 causes the control piston 7 now moves in the Chryslerge sat direction, wherein the valve piston 22 releases the valve stem 19 and the spring 20 pulls the valve stem 19 back into the valve seat 21.
  • the first valve 3 closes.
  • the control piston 7 continues its movement until a shoulder 27 of the valve piston 22 comes into abutment against a housing-side stop 28.
  • the control piston 7 now moves alone in the direction of the control chamber 8, so that the valve seat 24 of the second valve 5 is opened and a connection of the gas rails 2 with the gas return line 6 is made.
  • the control piston 7 is surrounded by a sealing element 10 in the form of a metallic bellows, which separates the gas return 6 from a pressure medium leakage chamber 9.
  • the pressure medium leakage chamber 9 is connected via a supply throttle 14 to the pressure medium inlet 15 on the one hand, on the other hand, via a pressure medium-Abêtventil 11 a Ver connection of the pressure medium leakage chamber 9 with the pressure fluid return 12 produced.
  • the pressure-medium shut-off valve 11 is electrically actuated in accordance with a control unit (not shown) receiving and comparing signals from a pressure medium leakage chamber 9 arranged first pressure sensor 17 and arranged in the gas return 6 second pressure sensor 18. In this way, the outside and inside of the control unit (not shown) receiving and comparing signals from a pressure medium leakage chamber 9 arranged first pressure sensor 17 and arranged in the gas return 6 second pressure sensor 18. In this way, the outside and inside of the
  • Sealing element 10 applied pressure can be adjusted so that the load on the sealing element 10 is significantly reduced. As a result, the reliability increases and permanently secure media separation is guaranteed.

Landscapes

  • 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)
  • Analytical Chemistry (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Fluid-Driven Valves (AREA)

Abstract

L'invention concerne un ensemble vanne (1) destiné à réguler la pression de gaz dans une rampe de distribution de gaz (2) d'un système d'alimentation en carburant destiné à alimenter un moteur à combustion interne en carburant gazeux, en particulier en gaz naturel, lequel comprend - une première vanne (3) destinée à relier la rampe de distribution de gaz (2) à un accumulateur haute pression de gaz (4), - une deuxième vanne (5) destinée à relier la rampe de distribution de gaz (2) à un canal de retour de gaz (6) et - un piston de commande (7) disposé coaxialement à la première et à la deuxième vanne (3, 5), lequel délimite dans la direction axiale une chambre de commande (8) pouvant être soumise à l'action d'un fluide sous pression hydraulique. Selon l'invention, le piston de commande (7) délimite dans la direction radiale une chambre de fuite de fluide sous pression (9) qui est séparée du canal de retour de gaz (6) par un élément d'étanchéité (10) et peut être reliée à un canal de retour de fluide sous pression (12) par l'intermédiaire d'une vanne de décharge de fluide sous pression (11). L'invention concerne en outre un système d'alimentation en carburant comprenant un ensemble vanne selon l'invention (1) destiné à réguler la pression de gaz dans une rampe de distribution de gaz (2).
PCT/EP2019/050061 2018-01-10 2019-01-03 Ensemble vanne pour la régulation de pression de gaz, système d'alimentation en carburant muni d'un ensemble vanne pour la régulation de pression de gaz WO2019137842A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980007949.5A CN111566332B (zh) 2018-01-10 2019-01-03 用于气体压力调节的阀组件，具有用于气体压力调节的阀组件的燃料系统

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018200247.9 2018-01-10
DE102018200247.9A DE102018200247A1 (de) 2018-01-10 2018-01-10 Ventilanordnung zur Gasdruckregelung, Kraftstoffsystem mit Ventilanordnung zur Gasdruckregelung

Publications (1)

Publication Number Publication Date
WO2019137842A1 true WO2019137842A1 (fr) 2019-07-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2019/050061 WO2019137842A1 (fr) 2018-01-10 2019-01-03 Ensemble vanne pour la régulation de pression de gaz, système d'alimentation en carburant muni d'un ensemble vanne pour la régulation de pression de gaz

Country Status (3)

Country Link
CN (1) CN111566332B (fr)
DE (1) DE102018200247A1 (fr)
WO (1) WO2019137842A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112049947A (zh) * 2020-09-03 2020-12-08 北京星际荣耀空间科技有限公司 一种阀门结构及液体发动机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021206328A1 (de) * 2021-06-21 2022-12-22 Robert Bosch Gesellschaft mit beschränkter Haftung Gasspeichervorrichtung, Gasversorgungssystem sowie Gasmotor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3221374A1 (de) * 1982-06-05 1983-12-22 Motoren-Werke Mannheim AG vorm. Benz Abt. stationärer Motorenbau, 6800 Mannheim Einrichtung zur einspritzung von zuendkraftstoff einerseits und hauptkraftstoff anderseits fuer dieselmotoren
WO2017152280A1 (fr) * 2016-03-07 2017-09-14 Westport Power Inc. Modules de régulation de pression avec trajectoires de fuite contrôlées
DE102016207743A1 (de) 2016-05-04 2017-11-09 Robert Bosch Gmbh Einrichtung zur Zumessung eines gasförmigen Brennstoffs zu einem Injektor
DE102016210737A1 (de) * 2016-06-16 2017-12-21 Robert Bosch Gmbh Förderpumpe für kryogene Kraftstoffe

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS533448B2 (fr) * 1974-01-12 1978-02-07
JPH0718384B2 (ja) * 1986-08-06 1995-03-06 トヨタ自動車株式会社 ガス燃料用レギユレ−タの安全装置
US5752489A (en) * 1997-02-10 1998-05-19 Cummins Engine Company, Inc. Integrated fuel measurement and control system for gaseous fuels
US6761325B2 (en) * 1998-09-16 2004-07-13 Westport Research Inc. Dual fuel injection valve and method of operating a dual fuel injection valve
JP3649613B2 (ja) * 1999-02-26 2005-05-18 愛三工業株式会社 圧縮天然ガス用レギュレータ
US6298833B1 (en) * 2000-04-07 2001-10-09 Westport Research Inc. Fluid seal apparatus and method for dynamically controlling sealing-fluid pressure
CN2878692Y (zh) * 2006-03-07 2007-03-14 赵旭 活塞式减压器
EP2602526A1 (fr) * 2010-08-06 2013-06-12 Kawasaki Jukogyo Kabushiki Kaisha Soupape de régulation de pression de gaz
CA2806808A1 (fr) * 2010-08-06 2012-02-09 Kawasaki Jukogyo Kabushiki Kaisha Soupape de regulation de pression de gaz
JP5416676B2 (ja) * 2010-10-19 2014-02-12 川崎重工業株式会社 ガスエンジンの燃料ガス供給システム
US8978623B2 (en) * 2011-12-23 2015-03-17 Caterpillar Inc. Dual fuel injector having fuel leak seals
CA2773651C (fr) * 2012-04-05 2013-04-09 Westport Power Inc. Procede et appareil de regulation de la pression du carburant dans un moteur a combustion interne a carburant gazeux
US8905059B2 (en) * 2012-07-20 2014-12-09 Caterpillar Inc. Diesel fuel leakage control system for a dual fuel injector
ITPD20120274A1 (it) * 2012-09-20 2014-03-21 Omvl S P A Dispositivo regolatore di pressione per impianti a gas combustibile in motori endotermici, particolarmente per autotrazione
EP2728228B1 (fr) * 2012-11-05 2015-06-17 Magna Steyr Fahrzeugtechnik AG & Co KG Clapet antiretour pour un réservoir d'accumulation de pression
JP5713210B2 (ja) * 2012-12-05 2015-05-07 株式会社デンソー 気体燃料用圧力制御弁
JP2014234799A (ja) * 2013-06-04 2014-12-15 トヨタ自動車株式会社 燃料噴射装置
ITBO20130375A1 (it) * 2013-07-17 2015-01-18 Metatron S R L Riduttore di pressione
DE102013216889B4 (de) * 2013-08-26 2016-08-11 Robert Bosch Gmbh Überströmventil für ein Kraftstoffeinspritzsystem sowie Kraftstoffeinspritzsystem
DE102013017853B4 (de) * 2013-10-26 2021-03-04 Woodward L'orange Gmbh Verfahren zur Ausführung mit einem Dual-Fuel-Kraftstoffeinspritzsystem
JP6161568B2 (ja) * 2014-04-23 2017-07-12 本田技研工業株式会社 バイフューエルエンジン
DE102014223240A1 (de) * 2014-11-14 2016-05-19 Robert Bosch Gmbh Niederdruckregelsystem einer Kraftstofffördereinrichtung eines Kraftstoffeinspritzsystems sowie ein Absteuerventil dazu

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3221374A1 (de) * 1982-06-05 1983-12-22 Motoren-Werke Mannheim AG vorm. Benz Abt. stationärer Motorenbau, 6800 Mannheim Einrichtung zur einspritzung von zuendkraftstoff einerseits und hauptkraftstoff anderseits fuer dieselmotoren
WO2017152280A1 (fr) * 2016-03-07 2017-09-14 Westport Power Inc. Modules de régulation de pression avec trajectoires de fuite contrôlées
DE102016207743A1 (de) 2016-05-04 2017-11-09 Robert Bosch Gmbh Einrichtung zur Zumessung eines gasförmigen Brennstoffs zu einem Injektor
DE102016210737A1 (de) * 2016-06-16 2017-12-21 Robert Bosch Gmbh Förderpumpe für kryogene Kraftstoffe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112049947A (zh) * 2020-09-03 2020-12-08 北京星际荣耀空间科技有限公司 一种阀门结构及液体发动机
CN112049947B (zh) * 2020-09-03 2022-05-24 北京星际荣耀空间科技股份有限公司 一种阀门结构及液体发动机

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