JP2011140910A - Fuel system for vehicle engine - Google Patents

Fuel system for vehicle engine Download PDF

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Publication number
JP2011140910A
JP2011140910A JP2010002084A JP2010002084A JP2011140910A JP 2011140910 A JP2011140910 A JP 2011140910A JP 2010002084 A JP2010002084 A JP 2010002084A JP 2010002084 A JP2010002084 A JP 2010002084A JP 2011140910 A JP2011140910 A JP 2011140910A
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Prior art keywords
fuel
vehicle
regulator
engine
battery
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JP2010002084A
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JP5446890B2 (en
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Takaichi Miyazaki
尊一 宮崎
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Suzuki Motor Corp
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Suzuki Motor Corp
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Priority to JP2010002084A priority Critical patent/JP5446890B2/en
Priority to DE102011008041.4A priority patent/DE102011008041B4/en
Priority to CN2011100082510A priority patent/CN102120436B/en
Publication of JP2011140910A publication Critical patent/JP2011140910A/en
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    • 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
    • F02M21/029—Arrangement on engines or vehicle bodies; Conversion to gaseous fuel supply systems
    • 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
    • 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
    • F02M21/0296—Manufacturing or assembly; Materials, e.g. coatings
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0041—Means for damping pressure pulsations
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Manufacturing & Machinery (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To protect a connection portion between a regulator and a fuel pipe when external force acts on a vehicle front portion, in a fuel system for a vehicle engine. <P>SOLUTION: In this fuel system for the vehicle engine, an engine using fuel gas as fuel and a battery are juxtaposed in a vehicle width direction in a vehicle engine room, a gas vessel storing the fuel gas is mounted in a vehicle, the gas vessel and the engine are allowed to communicate with each other through the fuel pipe, and the regulator depressurizing the high-pressure fuel gas in the gas vessel is arranged in the middle of the fuel pipe. A space is formed between the battery and an engine room sidewall arranged outside of the battery in the vehicle width direction, the regulator is arranged in the space, and the front end of the battery is projected forward of a vehicle beyond the regulator. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

この発明は車両用エンジンの燃料供給装置に係り、特にレギュレータ及び燃料配管の連結部を車両前部からの外力から保護する車両用エンジンの燃料供給装置に関するものである。   The present invention relates to a fuel supply device for a vehicle engine, and more particularly to a fuel supply device for a vehicle engine that protects a connecting portion between a regulator and a fuel pipe from an external force from the front of the vehicle.

車両には、バイフューエル（「Ｂｉ−ｆｕｅｌ」とも記載する。）車両がある。
このバイフューエル車両は、ガソリン、軽油等の液体燃料と天然ガス（「ＣＮＧガス」ともいう。）、液化石油ガス（「ＬＰＧガス」ともいう。）等の気体燃料（「ガス燃料」ともいう。）との２種類を切り換えて使用するエンジンを搭載している。
バイフューエル車両の燃料供給装置は、運転状況に応じてエンジンに供給する液体燃料と気体燃料とを切り換えることで、液体燃料の使用により高出力を満足させるとともに、気体燃料の使用により排気有害成分の低減に貢献している。 The vehicle includes a bi-fuel (also referred to as “Bi-fuel”) vehicle.
This bi-fuel vehicle is also referred to as liquid fuel such as gasoline and light oil, and gas fuel such as natural gas (also referred to as “CNG gas”) and liquefied petroleum gas (also referred to as “LPG gas”) (also referred to as “gas fuel”). The engine is used by switching between two types.
The fuel supply system for a bi-fuel vehicle switches between liquid fuel and gaseous fuel supplied to the engine according to the driving situation, thereby satisfying high output by using liquid fuel, and exhaust harmful components by using gaseous fuel. Contributes to reduction.

特開２０００−３４５９１７号公報JP 2000-345917 A

ところで、従来の液体燃料と気体燃料とを切り換えて使用するエンジンを搭載するバイフューエル車両（単に「車両」ともいう。）においては、ガス容器内の高圧のガス燃料をエンジンに供給するために、高圧配管である燃料配管をエンジンルーム内に配設する必要がある。
このとき、前記燃料配管、つまり前記ガス容器やレギュレータ、圧力ゲージなどに連絡する燃料配管の連結部がレギュレータやバッテリよりも車両前方にレイアウトされている。
このようなレイアウトにおいては、車両前方から外力（「荷重」とも換言できる。）が作用した場合に、前記連結部や燃料配管に直接外力による衝撃が加わってしまうという欠点がある。
そして、この外力による衝撃が加わった際に、各燃料配管が損傷し、燃料であるＣＮＧガスなどのガス燃料のリークが発生してしまうという不都合がある。
また、最悪の場合には、前記連結部が損傷し、燃料配管が外れてしまうおそれがあり、このような場合には、可燃性の高圧のガス燃料が一気に放出されてしまうという不都合がある。 By the way, in a bi-fuel vehicle (also referred to simply as “vehicle”) equipped with an engine that switches between conventional liquid fuel and gaseous fuel, in order to supply high-pressure gas fuel in a gas container to the engine, It is necessary to arrange fuel piping, which is high-pressure piping, in the engine room.
At this time, the fuel piping, that is, the connecting portion of the fuel piping connected to the gas container, the regulator, the pressure gauge, and the like is laid out in front of the regulator and the battery.
In such a layout, when an external force (also referred to as “load”) is applied from the front of the vehicle, there is a drawback that an impact due to the external force is directly applied to the connecting portion and the fuel pipe.
Further, when an impact due to the external force is applied, each fuel pipe is damaged, and there is a disadvantage that a leak of gas fuel such as CNG gas as a fuel occurs.
In the worst case, the connecting portion may be damaged and the fuel pipe may be disconnected. In such a case, there is a disadvantage that combustible high-pressure gas fuel is released at a stroke.

この発明は、車両用エンジンの燃料供給装置において、車両前部に外力が作用した際に、レギュレータ及び燃料配管の連結部を保護することを目的とする。   An object of the present invention is to protect a regulator and a connecting portion of a fuel pipe when an external force is applied to a front portion of a vehicle in a fuel supply device for a vehicle engine.

そこで、この発明は、上述不都合を除去するために、車両のエンジンルーム内にガス燃料を燃料とするエンジンとバッテリとを車両幅方向に並べて配置し、前記車両にガス燃料を貯蔵するガス容器を搭載し、このガス容器と前記エンジンとを燃料配管で連絡し、前記ガス容器内の高圧のガス燃料を減圧するレギュレータを前記燃料配管の途中に配設した車両用エンジンの燃料供給装置において、前記バッテリとこのバッテリの車両幅方向外側に配置されるエンジンルーム側壁との間に空間を形成し、この空間に前記レギュレータを配置するとともに、前記バッテリの前端部を前記レギュレータより車両前方に突出させることを特徴とする。   Therefore, in order to eliminate the above-mentioned inconveniences, the present invention includes an engine and a battery that use gas fuel as fuel in a vehicle engine room side by side in the vehicle width direction, and a gas container that stores the gas fuel in the vehicle. In the fuel supply device for a vehicle engine, which is mounted and connected to the gas container and the engine by a fuel pipe, and a regulator for depressurizing the high-pressure gas fuel in the gas container is disposed in the middle of the fuel pipe. A space is formed between the battery and an engine room side wall disposed outside the battery in the vehicle width direction, the regulator is disposed in the space, and the front end portion of the battery is projected forward of the vehicle from the regulator. It is characterized by.

以上詳細に説明した如くこの発明によれば、車両のエンジンルーム内にガス燃料を燃料とするエンジンとバッテリとを車両幅方向に並べて配置し、車両にガス燃料を貯蔵するガス容器を搭載し、ガス容器とエンジンとを燃料配管で連絡し、ガス容器内の高圧のガス燃料を減圧するレギュレータを燃料配管の途中に配設した車両用エンジンの燃料供給装置において、バッテリとバッテリの車両幅方向外側に配置されるエンジンルーム側壁との間に空間を形成し、空間にレギュレータを配置するとともに、バッテリの前端部をレギュレータより車両前方に突出させる。
従って、車両の前部に外力が作用し、バッテリが車両後方に移動しても、バッテリがレギュレータと干渉することを防止できる。
また、バッテリをレギュレータより車両前方に突出させることで、車両前部に外力が作用した場合、バッテリで外力を受け止め、レギュレータを外力から保護できる。 As described above in detail, according to the present invention, the engine and the battery that use gas fuel as fuel in the engine room of the vehicle are arranged in the vehicle width direction, and the vehicle is equipped with a gas container that stores the gas fuel. In a fuel supply device for a vehicle engine in which a gas container and an engine are connected by a fuel pipe and a regulator for depressurizing high-pressure gas fuel in the gas container is arranged in the middle of the fuel pipe, the battery and the battery in the vehicle width direction outside A space is formed between the engine room side wall and the regulator, and a regulator is disposed in the space, and a front end portion of the battery is projected forward of the vehicle from the regulator.
Therefore, even if an external force acts on the front portion of the vehicle and the battery moves rearward, the battery can be prevented from interfering with the regulator.
Moreover, when an external force acts on the front part of the vehicle by projecting the battery forward from the regulator, the battery can receive the external force and protect the regulator from the external force.

図１は車両前部のバッテリ及びレギュレータ付近の概略拡大平面図である。（実施例１）FIG. 1 is a schematic enlarged plan view of the vicinity of a battery and a regulator at the front of the vehicle. Example 1 図２は車両前部の平面図である。（実施例１）FIG. 2 is a plan view of the front portion of the vehicle. Example 1 図３は車両前部の正面図である。（実施例１）FIG. 3 is a front view of the front portion of the vehicle. Example 1 図４は車両前部の側面図である。（実施例１）FIG. 4 is a side view of the front portion of the vehicle. Example 1 図５は車両前部のバッテリ及びレギュレータ付近の概略拡大正面図である。（実施例１）FIG. 5 is a schematic enlarged front view of the vicinity of the battery and regulator in the front part of the vehicle. Example 1 図６は車両用エンジンの燃料供給装置の分解図である。（実施例１）FIG. 6 is an exploded view of the fuel supply device for the vehicle engine. Example 1

以下図面に基づいてこの発明の実施例を詳細に説明する。   Embodiments of the present invention will be described below in detail with reference to the drawings.

図１〜図６はこの発明の実施例を示すものである。
図２〜図４において、１は液体燃料と気体燃料とを切り換えて使用するエンジン２を搭載するバイフューエル車両（以下、単に「車両」という。）、３は車両１の前部に形成されるエンジンルームである。
そして、前記車両１のエンジルーム３内に左右一対のサイドメンバ４を配設し、これらの左右一対のサイドメンバ４間に前記エンジン２を搭載し、このエンジン２の前方にラジエータ５を配設する。
つまり、前記車両１のエンジンルーム３は、図２〜図４に示す如く、左右の左側及び右側前輪６、７の間に左右一対のサイドメンバ４を配設する一方、車両前方のラジエータ５と車両後方側のダッシュパネル８、そして、上方のエンジンフード９によって区画形成さけており、この区画された部位には前記エンジン２と変速機１０とを横置き状態に搭載している。
また、前記エンジンルーム３内の右側に位置する前記エンジン２の後面に吸気マニホルド１１を配設するとともに、この吸気マニホルド１１の車両左側にスロットルボディ１２を配設し、前記吸気マニホルド１１の車両右側には天然ガス用デリバリパイプ１３を配設している。
更に、前記エンジン２の前面には排気マニホルド１４を配設し、このエンジン２の前面において、排気マニホルド１４よりも下方部位に触媒コンバータ１５と排気管１６とを配設している。
更にまた、前記エンジン２の上面にはエアクリーナ１７を配設し、このエアクリーナ１７に新気を導入する吸気ダクト１８をエアクリーナ１７から前記ラジエータ５の上部へ車両前方に指向するように配設している。 1 to 6 show an embodiment of the present invention.
2 to 4, reference numeral 1 denotes a bi-fuel vehicle (hereinafter simply referred to as “vehicle”) on which an engine 2 that switches between liquid fuel and gaseous fuel is used, and 3 is formed at the front portion of the vehicle 1. It is an engine room.
A pair of left and right side members 4 are disposed in the engine room 3 of the vehicle 1, the engine 2 is mounted between the pair of left and right side members 4, and a radiator 5 is disposed in front of the engine 2. To do.
That is, the engine room 3 of the vehicle 1 includes a pair of left and right side members 4 between the left and right left and right front wheels 6 and 7 as shown in FIGS. A compartment is formed by a dash panel 8 on the vehicle rear side and an upper engine hood 9, and the engine 2 and the transmission 10 are mounted horizontally in the compartment.
An intake manifold 11 is disposed on the rear surface of the engine 2 located on the right side in the engine room 3, and a throttle body 12 is disposed on the left side of the intake manifold 11. The right side of the intake manifold 11 is positioned on the right side of the vehicle. Is provided with a delivery pipe 13 for natural gas.
Further, an exhaust manifold 14 is disposed on the front surface of the engine 2, and a catalytic converter 15 and an exhaust pipe 16 are disposed on the front surface of the engine 2 below the exhaust manifold 14.
Furthermore, an air cleaner 17 is disposed on the upper surface of the engine 2, and an intake duct 18 for introducing fresh air into the air cleaner 17 is disposed from the air cleaner 17 to the top of the radiator 5 so as to be directed forward of the vehicle. Yes.

また、前記車両１のエンジンルーム３内においては、図１〜図５に示す如く、前記エンジン２に対してバッテリ１９を車両幅方向に並べて左側に配置し、前記車両１にガス燃料を貯蔵するガス容器２０を搭載し、このガス容器２０と前記エンジン２とを燃料配管２１で連絡し、前記ガス容器２０内の高圧のガス燃料を減圧するレギュレータ２２を前記燃料配管２１の途中に配設する。
そして、前記エンジンルーム３内に前記バッテリ１９を配置する際に、図１及び図３、図５に示す如く、バッテリトレイ２３によってバッテリ１９を固定する。
また、前記エンジンルーム３内に前記バッテリ１９を配置した際には、図１〜図５に示す如く、このバッテリ１９より車両前方にリザーブタンク２４を配設する。 Further, in the engine room 3 of the vehicle 1, as shown in FIGS. 1 to 5, a battery 19 is arranged on the left side with respect to the engine 2 in the vehicle width direction, and gas fuel is stored in the vehicle 1. A gas container 20 is mounted, the gas container 20 and the engine 2 are connected to each other through a fuel pipe 21, and a regulator 22 that depressurizes high-pressure gas fuel in the gas container 20 is disposed in the fuel pipe 21. .
When the battery 19 is disposed in the engine room 3, the battery 19 is fixed by the battery tray 23 as shown in FIGS. 1, 3, and 5.
When the battery 19 is disposed in the engine room 3, a reserve tank 24 is disposed in front of the vehicle from the battery 19 as shown in FIGS.

そして、前記バッテリ１９とこのバッテリ１９の車両幅方向外側に配置されるエンジンルーム側壁２５との間に空間Ｓを形成し、この空間Ｓに前記レギュレータ２２を配置するとともに、前記バッテリ１９の前端部１９ａを前記レギュレータ２２より車両前方に突出させる構造とする。
詳述すれば、前記空間Ｓを、図１及び図２に示す如く、前記バッテリ１９とこのバッテリ１９の車両幅方向外側に配置されるエンジンルーム側壁２５との間に形成する。
そして、前記空間Ｓに前記レギュレータ２２を配置した際に、前記バッテリ１９の前端部１９ａが前記レギュレータ２２より車両前方に突出するように配置している。
なお、前記バッテリ１９の前端部１９ａと前記レギュレータ２２との位置関係は相対的なものであるため、この実施例においては、「前記バッテリ１９の前端部１９ａを前記レギュレータ２２より車両前方に突出させる構造とする。」との表現を使用したが、前記レギュレータ２２の配置位置を前記バッテリ１９の前端部１９ａよりも車両後方側に移動させる表現とすることも可能である。
従って、前記車両１の前部に外力が作用し、前記バッテリ１９が車両後方に移動しても、前記バッテリ１９と前記エンジンルーム側壁２５との間に形成される前記空間Ｓに前記レギュレータ２２が配置されているため、バッテリ１９がレギュレータ２２と干渉することを防止できる。
また、前記バッテリ１９を前記レギュレータ２２より車両前方に突出させることで、車両前部に外力が作用した場合、バッテリ１９で外力を受け止め、レギュレータ２２を外力から保護できる。
追記すれば、上述した構造によって、前記バッテリ１９の前端部１９ａに車両前方から外力が作用しても、レギュレータ２２に影響を与えるほどバッテリ１９が変形あるいは損傷されることは稀であるため、車両前方からの外力に耐え得る十分な強度とし得る、と換言することができる。 A space S is formed between the battery 19 and the engine room side wall 25 disposed outside the battery 19 in the vehicle width direction, the regulator 22 is disposed in the space S, and the front end portion of the battery 19 is disposed. 19a is projected from the regulator 22 to the front of the vehicle.
More specifically, as shown in FIGS. 1 and 2, the space S is formed between the battery 19 and the engine room side wall 25 disposed outside the battery 19 in the vehicle width direction.
And when the said regulator 22 is arrange | positioned in the said space S, it arrange | positions so that the front-end part 19a of the said battery 19 may protrude ahead of the vehicle from the said regulator 22. FIG.
Since the positional relationship between the front end portion 19a of the battery 19 and the regulator 22 is relative, in this embodiment, “the front end portion 19a of the battery 19 projects from the regulator 22 forward of the vehicle. Although the expression “the structure is used” is used, it is also possible to adopt an expression in which the arrangement position of the regulator 22 is moved to the vehicle rear side from the front end portion 19 a of the battery 19.
Therefore, even if an external force acts on the front portion of the vehicle 1 and the battery 19 moves to the rear of the vehicle, the regulator 22 is placed in the space S formed between the battery 19 and the engine room side wall 25. Since it is arranged, the battery 19 can be prevented from interfering with the regulator 22.
Further, by projecting the battery 19 forward of the vehicle from the regulator 22, when an external force acts on the front portion of the vehicle, the battery 19 can receive the external force and protect the regulator 22 from the external force.
If it adds, even if an external force acts on the front end 19a of the battery 19 from the front of the vehicle, the battery 19 is rarely deformed or damaged so as to affect the regulator 22 due to the structure described above. In other words, it can be sufficient strength to withstand external force from the front.

また、前記エンジンルーム３内にガス燃料の圧力を測定する圧力ゲージ２６を備え、この圧力ゲージ２６を前記レギュレータ２２の上側に配置する。
つまり、前記エンジンルーム３内に圧力ゲージ２６を配置する際には、図１及び図２、図４、図５に示す如く、前記バッテリ１９とエンジンルーム側壁２５との間に形成される前記空間Ｓに前記レギュレータ２２が配置されており、このレギュレータ２２の上側、かつ、レギュレータ２２の後部の一部を上方から覆う少し車両後方に移動させた位置に前記圧力ゲージ２６を配置するものである。
従って、前記バッテリ１９とエンジンルーム側壁２５との間に形成される前記空間Ｓに前記レギュレータ２２が配置されているため、前記圧力ゲージ２６をレギュレータ２２の上側に配置することで、圧力ゲージ２６が車両後方に移動するバッテリ１９と干渉することを回避し、圧力ゲージ２６を外力から保護できる。
また、前記レギュレータ２２と前記バッテリ１９の前端部１９ａの位置関係と同様に、バッテリ１９の前端部１９ａが圧力ゲージ２６より前方に突出しているため、外力をバッテリ１９で受けることができ、圧力ゲージ２６を外力から保護できる。 In addition, a pressure gauge 26 for measuring the pressure of the gas fuel is provided in the engine room 3, and the pressure gauge 26 is disposed on the upper side of the regulator 22.
That is, when the pressure gauge 26 is disposed in the engine room 3, the space formed between the battery 19 and the engine room side wall 25 as shown in FIGS. 1, 2, 4, and 5. The regulator 22 is arranged at S, and the pressure gauge 26 is arranged at a position where the regulator 22 is moved to the rear of the vehicle a little so as to cover a part of the rear part of the regulator 22 from above.
Accordingly, since the regulator 22 is disposed in the space S formed between the battery 19 and the engine room side wall 25, the pressure gauge 26 is disposed by placing the pressure gauge 26 on the upper side of the regulator 22. Interference with the battery 19 moving to the rear of the vehicle can be avoided, and the pressure gauge 26 can be protected from external force.
Similarly to the positional relationship between the regulator 22 and the front end portion 19a of the battery 19, the front end portion 19a of the battery 19 projects forward from the pressure gauge 26, so that an external force can be received by the battery 19, and the pressure gauge 26 can be protected from external force.

更に、前記エンジンルーム側壁２５はサイドメンバ４とフェンダエプロン２７とを備え、このフェンダエプロン２７は前記サイドメンバ４から上方に延びる縦壁２８と、この縦壁２８の上端より車両外側へ延びる棚部２９とを備え、この棚部２９の上側に前記レギュレータ２２を配置する。
つまり、前記エンジンルーム側壁２５は、図１〜図６に示す如く、サイドメンバ４と、このサイドメンバ４に接続されるフェンダエプロン２７と、このフェンダエプロン２７にブラケット３０を介して連結されるサイドパネル３１と、前記フェンダエプロン２７の車両後方側に位置するストラットタワー３２とを備えている。
なお、前記ブラケット３０には、図６に示す如く、圧力ゲージ用ブラケット２６ａを介して前記圧力ゲージ２６も取り付けられる。
そして、前記フェンダエプロン２７は、図１及び図３〜図６に示す如く、前記サイドメンバ４から上方に延びる縦壁２８と、この縦壁２８の上端より車両外側へ延びて断面Ｌ字形状を現出させる棚部２９とを備えている。
このとき、前記レギュレータ２２は、図１及び図３〜図５に示す如く、前記サイドメンバ４の縦壁２８の上端より車両外側へ延びる棚部２９の上側に配置している。
従って、前記フェンダエプロン２７は、剛性の高い前記サイドメンバ４に接続され、さらに、断面Ｌ字形状に形成されているため、フェンダエプロン２７の剛性が高くなり、フェンダエプロン２７の棚部２９の上側の空間は外力に対して変形および潰れ難い構造になり、この空間に前記レギュレータ２２を配置することで外力からレギュレータ２２を保護できる。 Further, the engine room side wall 25 includes a side member 4 and a fender apron 27. The fender apron 27 has a vertical wall 28 extending upward from the side member 4 and a shelf portion extending from the upper end of the vertical wall 28 to the outside of the vehicle. 29, and the regulator 22 is disposed above the shelf 29.
That is, as shown in FIGS. 1 to 6, the engine room side wall 25 includes a side member 4, a fender apron 27 connected to the side member 4, and a side connected to the fender apron 27 via the bracket 30. A panel 31 and a strut tower 32 located on the vehicle rear side of the fender apron 27 are provided.
As shown in FIG. 6, the pressure gauge 26 is also attached to the bracket 30 via a pressure gauge bracket 26a.
As shown in FIGS. 1 and 3 to 6, the fender apron 27 has a vertical wall 28 extending upward from the side member 4 and an L-shaped cross section extending outward from the upper end of the vertical wall 28 toward the vehicle exterior. And a shelf 29 to be exposed.
At this time, as shown in FIGS. 1 and 3 to 5, the regulator 22 is disposed above the shelf 29 that extends from the upper end of the vertical wall 28 of the side member 4 to the vehicle outer side.
Therefore, since the fender apron 27 is connected to the side member 4 having high rigidity and is formed in an L-shaped cross section, the rigidity of the fender apron 27 is increased, and the upper side of the shelf 29 of the fender apron 27 is increased. The space becomes a structure that is not easily deformed or crushed by an external force, and the regulator 22 can be protected from the external force by disposing the regulator 22 in this space.

前記燃料配管２１は、前記ガス容器２０に連絡する燃料配管３３と前記レギュレータ２２に連絡する燃料配管３４とを連結するとともに前記圧力ゲージ２６に連絡する燃料配管３５とを連結する連結部３６を備え、この連結部３６を前記レギュレータ２２と前記フェンダエプロン２７の棚部２９とで挟まれた空間（以下「第２の空間」という。）３７内に配置する。
つまり、前記燃料配管２１は、図１〜図３及び図５、図６に示す如く、前記ガス容器２０に連絡する燃料配管である第１燃料配管３３と、前記レギュレータ２２に連絡する燃料配管である第２燃料配管３４と、前記圧力ゲージ２６に連絡する燃料配管である第３燃料配管３５と、前記天然ガス用デリバリパイプ１３に天然ガス用フィルタ３８を介して連絡する第４燃料配管３９とを連結する前記連結部３６を備えている。
このとき、前記第１燃料配管３３は、図１及び図５に示す如く、車両後方に配置される前記ガス容器２０と前記車両１のエンジンルーム３の左側、かつ前記レギュレータ２２の下方に配置される前記連結部３６とを連絡している。
また、前記第２燃料配管３４は、前記バッテリ１９とエンジンルーム側壁２５との間に形成される空間Ｓに配置した前記レギュレータ２２とこのレギュレータ２２よりも下方の前記連結部３６とを連絡している。
更に、前記第３燃料配管３５は、前記レギュレータ２２の上側に配置した前記圧力ゲージ２６と前記連結部３６とを連絡している。
更にまた、前記第４燃料配管３９は、図６に示す如く、前記天然ガス用デリバリパイプ１３と天然ガス用フィルタ３８と前記連結部３６とを連絡している。
そして、前記レギュレータ２２と前記フェンダエプロン２７の棚部２９とで挟まれた第２の空間３７内に、図３及び図５に示す如く、前記連結部３６を配置するものである。
従って、前記連結部３６を前記レギュレータ２２と前記フェンダエプロン２７の棚部２９との間に挟まれた第２の空間３７内に配置することで、前記連結部３６が前記バッテリ１９や前記レギュレータ２２と接触（「干渉」とも換言できる。）することを回避できる。
また、断面Ｌ字形状に形成される前記フェンダエプロン２７は剛性が高いため、このフェンダエプロン２７の棚部２９と前記レギュレータ２２との間の第２の空間３７は、外力によって潰れ難くなる。
この潰れ難い第２の空間３７に前記連結部３６を配置することで、前記燃料配管２１の連結部３６を外力から保護できる。 The fuel pipe 21 includes a connecting portion 36 that connects a fuel pipe 33 that communicates with the gas container 20 and a fuel pipe 34 that communicates with the regulator 22 and a fuel pipe 35 that communicates with the pressure gauge 26. The connecting portion 36 is disposed in a space 37 (hereinafter referred to as “second space”) sandwiched between the regulator 22 and the shelf 29 of the fender apron 27.
That is, the fuel pipe 21 includes a first fuel pipe 33 that is a fuel pipe that communicates with the gas container 20 and a fuel pipe that communicates with the regulator 22 as shown in FIGS. 1 to 3, 5, and 6. A second fuel pipe 34, a third fuel pipe 35 that is a fuel pipe that communicates with the pressure gauge 26, and a fourth fuel pipe 39 that communicates with the natural gas delivery pipe 13 via a natural gas filter 38. The connecting portion 36 is connected.
At this time, as shown in FIGS. 1 and 5, the first fuel pipe 33 is disposed on the left side of the gas container 20 and the engine room 3 of the vehicle 1 and below the regulator 22 as shown in FIGS. 1 and 5. The connecting portion 36 is in communication.
The second fuel pipe 34 communicates the regulator 22 disposed in the space S formed between the battery 19 and the engine room side wall 25 and the connecting portion 36 below the regulator 22. Yes.
Further, the third fuel pipe 35 communicates the pressure gauge 26 disposed on the upper side of the regulator 22 and the connecting portion 36.
Furthermore, as shown in FIG. 6, the fourth fuel pipe 39 communicates the natural gas delivery pipe 13, the natural gas filter 38, and the connecting portion 36.
Then, as shown in FIGS. 3 and 5, the connecting portion 36 is disposed in a second space 37 sandwiched between the regulator 22 and the shelf 29 of the fender apron 27.
Accordingly, the connecting portion 36 is disposed in the second space 37 sandwiched between the regulator 22 and the shelf 29 of the fender apron 27, so that the connecting portion 36 is connected to the battery 19 or the regulator 22. Can be avoided (in other words, “interference”).
Further, since the fender apron 27 formed in an L-shaped cross section has high rigidity, the second space 37 between the shelf 29 of the fender apron 27 and the regulator 22 is not easily crushed by external force.
By disposing the connecting portion 36 in the second space 37 that is not easily crushed, the connecting portion 36 of the fuel pipe 21 can be protected from external force.

また、前記連結部３６を前記縦壁２８と前記棚部２９とが接合する接合部４０の真上に配置する。
つまり、前記縦壁２８とこの縦壁２８の上端より車両外側、かつ、略水平方向に延びる前記棚部２９とが接合する接合部４０を形成した際に、図１及び図３〜図５に示す如く、この接合部４０の真上に前記燃料配管２１の連結部３６を配置するものである。
従って、前記縦壁２８と略水平方向に延びる前記棚部２９とで接合される前記接合部４０の剛性は、前記フェンダエプロン２７の中で最も剛性が高いため、この剛性が高い接合部４０の真上の空間は、外力に対してさらに変形し難く（「潰れ難く」とも換言できる。）なる。
この変形し難い（「潰れ難い」とも換言できる。）領域に前記連結部３６を配置することで、前記燃料配管２１の連結部３６を外力から保護できる。 Further, the connecting portion 36 is disposed immediately above the joint portion 40 where the vertical wall 28 and the shelf portion 29 are joined.
That is, when the joining portion 40 is formed in which the vertical wall 28 and the shelf portion 29 extending from the upper end of the vertical wall 28 to the outside of the vehicle and extending substantially in the horizontal direction are joined, as shown in FIGS. As shown, the connecting portion 36 of the fuel pipe 21 is disposed directly above the joint portion 40.
Accordingly, the rigidity of the joint portion 40 joined by the vertical wall 28 and the shelf portion 29 extending in the substantially horizontal direction is the highest among the fender aprons 27. The space immediately above is more difficult to be deformed by an external force (it can also be said as “hard to collapse”).
By disposing the connecting portion 36 in a region where it is difficult to deform (it can also be said as “not easily crushed”), the connecting portion 36 of the fuel pipe 21 can be protected from external force.

なお、この発明は上述実施例に限定されるものではなく、種々の応用改変が可能である。   The present invention is not limited to the above-described embodiments, and various application modifications are possible.

例えば、この発明の実施例のエンジンルーム内におけるバッテリとレギュレータとの位置関係と同様に、車両の前部に外力が作用しても変形することがないエンジンやバッテリとレギュレータとで現出される空間に燃料配管の連結部を配置することによっても、車両前方からの外力が作用した際に、燃料配管の連結部の損傷を低減し、燃料配管からのガス燃料の漏れの発生を抑えることが可能である。   For example, similar to the positional relationship between the battery and the regulator in the engine room according to the embodiment of the present invention, the engine, the battery, and the regulator that are not deformed even when an external force is applied to the front portion of the vehicle. By arranging the connecting portion of the fuel pipe in the space, it is possible to reduce damage to the connecting portion of the fuel pipe and suppress the occurrence of leakage of gas fuel from the fuel pipe when an external force is applied from the front of the vehicle. Is possible.

１ バイフューエル車両（以下、単に「車両」という。）
２ エンジン
３ エンジンルーム
４ サイドメンバ
５ ラジエータ
６、７ 左側及び右側前輪
８ ダッシュパネル
９ エンジンフード
１３ 天然ガス用デリバリパイプ
１８ 吸気ダクト
１９ バッテリ
１９ａ 前端部
２０ ガス容器
２１ 燃料配管
２２ レギュレータ
２４ リザーブタンク
２５ エンジンルーム側壁
Ｓ 空間
２６ 圧力ゲージ
２７ フェンダエプロン
２８ 縦壁
２９ 棚部
３３ 第１燃料配管
３４ 第２燃料配管
３５ 第３燃料配管
３６ 連結部
３７ 第２の空間
３９ 第４燃料配管
４０ 接合部 1 Bi-fuel vehicle (hereinafter simply referred to as “vehicle”)
2 Engine 3 Engine Room 4 Side Member 5 Radiator 6, 7 Left and Right Front Wheel 8 Dash Panel 9 Engine Hood 13 Natural Gas Delivery Pipe 18 Intake Duct 19 Battery 19a Front End 20 Gas Container 21 Fuel Piping 22 Regulator 24 Reserve Tank 25 Engine Room Side Wall S Space 26 Pressure Gauge 27 Fender Apron 28 Vertical Wall 29 Shelf 33 First Fuel Pipe 34 Second Fuel Pipe 35 Third Fuel Pipe 36 Connection Portion 37 Second Space 39 Fourth Fuel Pipe 40 Joint Portion

Claims (5)

車両のエンジンルーム内にガス燃料を燃料とするエンジンとバッテリとを車両幅方向に並べて配置し、前記車両にガス燃料を貯蔵するガス容器を搭載し、このガス容器と前記エンジンとを燃料配管で連絡し、前記ガス容器内の高圧のガス燃料を減圧するレギュレータを前記燃料配管の途中に配設した車両用エンジンの燃料供給装置において、前記バッテリとこのバッテリの車両幅方向外側に配置されるエンジンルーム側壁との間に空間を形成し、この空間に前記レギュレータを配置するとともに、前記バッテリの前端部を前記レギュレータより車両前方に突出させることを特徴とする車両用エンジンの燃料供給装置。   An engine using gas fuel as fuel and a battery are arranged side by side in the vehicle width direction in the engine room of the vehicle, and a gas container for storing the gas fuel is mounted on the vehicle, and the gas container and the engine are connected by fuel piping. In the fuel supply device for a vehicle engine in which a regulator for reducing the pressure of the high-pressure gas fuel in the gas container is disposed in the middle of the fuel pipe, the battery and the engine disposed outside the battery in the vehicle width direction A fuel supply device for a vehicular engine, wherein a space is formed between a side wall of the room, the regulator is disposed in the space, and a front end portion of the battery protrudes forward of the regulator from the regulator. 前記エンジンルーム内にガス燃料の圧力を測定する圧力ゲージを備え、この圧力ゲージを前記レギュレータの上側に配置することを特徴とする請求項１に記載の車両用エンジンの燃料供給装置。   2. The fuel supply device for a vehicle engine according to claim 1, further comprising a pressure gauge for measuring a pressure of the gas fuel in the engine room, and the pressure gauge is disposed above the regulator. 前記エンジンルーム側壁はサイドメンバとフェンダエプロンとを備え、このフェンダエプロンは前記サイドメンバから上方に延びる縦壁と、この縦壁の上端より車両外側へ延びる棚部とを備え、この棚部の上側に前記レギュレータを配置することを特徴とする請求項２に記載の車両用エンジンの燃料供給装置。   The engine room side wall includes a side member and a fender apron. The fender apron includes a vertical wall extending upward from the side member, and a shelf extending outward from the upper end of the vertical wall. The fuel supply device for a vehicle engine according to claim 2, wherein the regulator is disposed in the vehicle. 前記燃料配管は、前記ガス容器に連絡する燃料配管と前記レギュレータに連絡する燃料配管とを連結するとともに前記圧力ゲージに連絡する燃料配管とを連結する連結部を備え、この連結部を前記レギュレータと前記フェンダエプロンの棚部とで挟まれた空間内に配置することを特徴とする請求項３に記載の車両用エンジンの燃料供給装置。   The fuel pipe includes a connecting part that connects a fuel pipe that communicates with the gas container and a fuel pipe that communicates with the regulator and a fuel pipe that communicates with the pressure gauge, and the connecting part is connected to the regulator. The fuel supply device for a vehicle engine according to claim 3, wherein the fuel supply device is disposed in a space sandwiched between shelves of the fender apron. 前記連結部を前記縦壁と前記棚部とが接合する接合部の真上に配置することを特徴とする請求項４に記載の車両用エンジンの燃料供給装置。   5. The fuel supply device for a vehicle engine according to claim 4, wherein the connecting portion is disposed immediately above a joint portion where the vertical wall and the shelf portion are joined.
JP2010002084A 2010-01-07 2010-01-07 Fuel supply device for vehicle engine Active JP5446890B2 (en)

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JP5477634B2 (en) * 2010-02-12 2014-04-23 スズキ株式会社 Gas fuel supply device for vehicle engine
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JP7230451B2 (en) * 2018-11-19 2023-03-01 トヨタ自動車株式会社 Layout structure of front space of hybrid vehicle

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JP5446890B2 (en) 2014-03-19

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