JPS60153462A - Gas fuel feeder - Google Patents

Gas fuel feeder

Info

Publication number
JPS60153462A
JPS60153462A JP59010725A JP1072584A JPS60153462A JP S60153462 A JPS60153462 A JP S60153462A JP 59010725 A JP59010725 A JP 59010725A JP 1072584 A JP1072584 A JP 1072584A JP S60153462 A JPS60153462 A JP S60153462A
Authority
JP
Japan
Prior art keywords
fuel
supercharger
mixer
valve
path
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.)
Pending
Application number
JP59010725A
Other languages
Japanese (ja)
Inventor
Kazuomi Akimoto
秋元　和臣
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.)
Nippon Carburetor Co Ltd
Original Assignee
Nippon Carburetor Co Ltd
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 Nippon Carburetor Co Ltd filed Critical Nippon Carburetor Co Ltd
Priority to JP59010725A priority Critical patent/JPS60153462A/en
Publication of JPS60153462A publication Critical patent/JPS60153462A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F02D19/023—Control of components of the fuel supply system to adjust the fuel mass or volume flow
    • 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
    • F02M21/04—Gas-air mixing apparatus
    • F02M21/047—Venturi mixer
    • 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

Abstract

PURPOSE:To prevent over leaning of mixture gas by providing a bypath in the measuring jet of fuel path for feeding gas fuel to a mixer in the intake system of engine associated with supercharger and opening the bypath upon function of supercharger to enable feeding of large amount of fuel. CONSTITUTION:A supercharger 2 and a mixer 3 are provided in the intake system 1 to feed gas fuel from a pressure reduction regulator 4 through fuel path 5 and main nozzle port 8 with correspondence to intake air. Furthermore, an auxiliary path 9 communicating beween upstream and downstream of measuring jet 6 formed in the fuel path 5 and a vavle 10 are provided. The operating chamber 17 of valve 10 is coupled to the downstream of supercharger 2 where upon function of supercharger 2, said valve 10 will open to feed gas fuel through auxiliary path 9 in addition to the maximum flow to be limited by the measuring jet 6 resulting in large amount fuel supply with correspondence to increase of intake air.

Description

【発明の詳細な説明】 本発明は主に自動車のエンジンにＬＰＧのような気体燃
料を供給する装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates primarily to an apparatus for supplying gaseous fuel such as LPG to an automobile engine.

頷ａ獣料かエン、ジンｔｒμの日的榊呂ｒ他絵むごとが
できるようにしたものである。It is designed to allow you to draw pictures such as Noda Animal Materials En, Jin TRμ's daily Sakakiro and others.

即ち、この目的な達成するため本発明においては、混合
器に気体燃料を送り込む燃料通路の計量用ジェットの上
流側と下流側とに接続された補助通路を設けるとともに
、過給機の作動時に開く開閉弁を前記補助通路に設けて
構成したことを特徴としている。That is, in order to achieve this objective, in the present invention, an auxiliary passage is provided which is connected to the upstream and downstream sides of the metering jet of the fuel passage that feeds gaseous fuel to the mixer, and which is opened when the supercharger is activated. The present invention is characterized in that an on-off valve is provided in the auxiliary passage.

図面は本発明の具体例を示すものであって。The drawings show specific examples of the invention.

図示しないエンジンに至る吸気系１に過給機２と混合器
３とが順に設けられ、ベーパライザからなる減圧調整器
４でほぼ大気圧程度の圧力に減圧した気体燃料を燃料通
路５によって混合器３０ベンチユリ７に開口した主ノズ
ル口８へ送り、吸入空気量に比例した気体燃料を吸出さ
せるようになっている。気体燃料は燃料通路５に形成し
た計量用ジェット（主ジェツト）６によって計ｔＭ整さ
れるもので。A supercharger 2 and a mixer 3 are sequentially provided in an intake system 1 leading to an engine (not shown), and gaseous fuel reduced to approximately atmospheric pressure by a pressure reducing regulator 4 consisting of a vaporizer is passed through a fuel passage 5 to a mixer 30. The fuel is sent to a main nozzle port 8 opened in the bench lily 7, and gaseous fuel proportional to the amount of intake air is sucked out. The gaseous fuel is metered by a metering jet (main jet) 6 formed in the fuel passage 5.

一定量以上の気体燃料が混合器３に送り込まれないよう
になっている。Gaseous fuel exceeding a certain amount is not sent into the mixer 3.

前記計量用ジェット６の上流側と下流側とに接続した神
助通路９が燃料通路５から分岐して設けられ、この補助
通路９に開閉弁１０が設けられている。開閉弁１０はＭ
助通路９の途中に形成した弁本体１１と、その内部の入
口室１２と出口室１３との間の弁座１４と、この弁座１
４に着座する弁体１５とを具え、ダイヤフラム１６を挟
んで入口室１２に対向形成した操作室１７と吸気系１の
過給機２の出口附近とは操作通路１８で接続されている
。弁体１５とダイヤフラム１６とは弁杆１９で結合され
、入口室１２に装入してダイヤフラム１６に作用させた
閉弁ばね２００弾性力で弁体１５な弁座１４に着座させ
るようにし、更に補助通路９の開閉弁１０よりも下流側
に計量用ジェット２１を設けて構成されている。An auxiliary passage 9 is provided that is connected to the upstream and downstream sides of the metering jet 6 and is branched from the fuel passage 5, and this auxiliary passage 9 is provided with an on-off valve 10. The on-off valve 10 is M
A valve body 11 formed in the middle of the auxiliary passage 9, a valve seat 14 between the inlet chamber 12 and the outlet chamber 13 inside the valve body 11, and this valve seat 1.
An operation chamber 17 formed opposite to the inlet chamber 12 with a diaphragm 16 in between is connected to the vicinity of the outlet of the supercharger 2 of the intake system 1 by an operation passage 18. The valve body 15 and the diaphragm 16 are connected by a valve rod 19, and the elastic force of a valve closing spring 200 inserted into the inlet chamber 12 and applied to the diaphragm 16 causes the valve body 15 to be seated on the valve seat 14. A metering jet 21 is provided downstream of the on-off valve 10 in the auxiliary passage 9.

このような構成の本具体例において、過給機２の不作動
時には閉弁ばね２０の弾性力で弁体１５が弁座１４に着
座して補助通路９を閉塞して居り、気体燃料は燃料通路
５な通って混合器３に送り込まれ、その最大流量は計量
用ジェット６で規制されている。過給機２が作動して千
の出口側の空気圧力が高くなると、操作宰】７の空気圧
力も高くなるのでダイヤフラム１６が入口室１２の刀へ
押されて弁体１５を弁座１４から離間させ、気体燃料は
燃料通路５の計量用ジェット６をバイパスして混合器３
に送り込まれる。従って計量用ジェット６で規制される
最大流量よりも多量の気体燃料が混合器３に送り込まれ
ろこととなるのである。In this specific example with such a configuration, when the supercharger 2 is not operating, the valve body 15 is seated on the valve seat 14 by the elastic force of the valve closing spring 20 and closes the auxiliary passage 9, and the gaseous fuel is It is fed into the mixer 3 through a passage 5, and its maximum flow rate is regulated by a metering jet 6. When the supercharger 2 operates and the air pressure on the outlet side increases, the air pressure in the operating chamber 7 also increases, so the diaphragm 16 is pushed against the blade in the inlet chamber 12, separating the valve body 15 from the valve seat 14. The gaseous fuel bypasses the metering jet 6 in the fuel passage 5 and enters the mixer 3.
sent to. Therefore, a larger amount of gaseous fuel must be fed into the mixer 3 than the maximum flow rate regulated by the metering jet 6.

尚、開閉弁１０は電磁駆動とし、過給機作動時に電気的
に開弁させるようにしてもよい。Note that the on-off valve 10 may be electromagnetically driven and opened electrically when the supercharger is activated.

また９本発明は過給機２が混合器３の下流側に設けられ
ているもの、減圧調整器４がゼロガバナで構成されてい
るものにも適用できることは勿論である。It goes without saying that the present invention can also be applied to a system in which the supercharger 2 is provided on the downstream side of the mixer 3, and a system in which the pressure reducing regulator 4 is configured as a zero governor.

以上のように本発明によると、過給機の作動時に燃料通
路の計量用ジェットをバイパスさせて気体燃料を混合器
に送り込むようにしたので、計量用ジェットで規制され
る最大流量よりも多量の気体燃料を混合器に送り込むこ
とができ、従って過給機作動時の吸入空気量増加に対応
して大量の気体燃料を供給し混合気過薄化による不完全
燃焼、エンジン出力低下などの不都合を招かないもので
ある。As described above, according to the present invention, when the supercharger operates, the metering jet in the fuel passage is bypassed and gaseous fuel is sent to the mixer, so that gaseous fuel is delivered to the mixer in an amount larger than the maximum flow rate regulated by the metering jet. Gaseous fuel can be sent to the mixer, and therefore a large amount of gaseous fuel can be supplied in response to the increase in the amount of intake air when the supercharger is activated, thereby preventing inconveniences such as incomplete combustion and reduced engine output due to excessively lean mixture. It is not an invitation.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本発明の具体例の縦断面図である。 １・・・・−・吸気糸、２・・・・・・過給機、３・・
・・・・混合器、４・・・・・・減圧調整器、５・・・
・・・燃料通路、６・・・・・・計量用ジェット、９・
旧・・補助通路、１０・・・・・・開閉弁、１４・・・
・・・弁座、１５・・・・・・弁体。The drawing is a longitudinal sectional view of an embodiment of the invention. 1...Intake thread, 2...Supercharger, 3...
...Mixer, 4...Reducing pressure regulator, 5...
...fuel passage, 6...metering jet, 9.
Old... Auxiliary passage, 10... Open/close valve, 14...
... Valve seat, 15... Valve body.

Claims (1)

【特許請求の範囲】 吸気系に空気と気体燃料との混合器および過給機を具え
た気体燃料供給装置において。 混合器に気体燃料を送り込む燃料通路の計量用ジェット
の上流側と下流側とに接続された補助通路を設けるとと
もに、過給機の作動時に開く開閉弁な前記補助通路に設
けたことを特徴とする気体燃料供給装置。[Claims:] A gaseous fuel supply device including an air and gaseous fuel mixer and a supercharger in an intake system. It is characterized by providing an auxiliary passage connected to the upstream and downstream sides of a metering jet in a fuel passage that feeds gaseous fuel to the mixer, and also providing an on-off valve in the auxiliary passage that opens when the supercharger is activated. Gaseous fuel supply device.
JP59010725A 1984-01-23 1984-01-23 Gas fuel feeder Pending JPS60153462A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59010725A JPS60153462A (en) 1984-01-23 1984-01-23 Gas fuel feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59010725A JPS60153462A (en) 1984-01-23 1984-01-23 Gas fuel feeder

Publications (1)

Publication Number Publication Date
JPS60153462A true JPS60153462A (en) 1985-08-12

Family

ID=11758266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59010725A Pending JPS60153462A (en) 1984-01-23 1984-01-23 Gas fuel feeder

Country Status (1)

Country Link
JP (1) JPS60153462A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016045870A1 (en) * 2014-09-24 2016-03-31 Continental Automotive Gmbh Mixture preparation device and fuel provision device for an internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016045870A1 (en) * 2014-09-24 2016-03-31 Continental Automotive Gmbh Mixture preparation device and fuel provision device for an internal combustion engine

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