JP4403548B2 - Gas fuel supply structure - Google Patents

Gas fuel supply structure Download PDF

Info

Publication number
JP4403548B2
JP4403548B2 JP2004193295A JP2004193295A JP4403548B2 JP 4403548 B2 JP4403548 B2 JP 4403548B2 JP 2004193295 A JP2004193295 A JP 2004193295A JP 2004193295 A JP2004193295 A JP 2004193295A JP 4403548 B2 JP4403548 B2 JP 4403548B2
Authority
JP
Japan
Prior art keywords
regulator
fuel
vehicle
gas
pipe
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.)
Expired - Fee Related
Application number
JP2004193295A
Other languages
Japanese (ja)
Other versions
JP2006016986A (en
Inventor
大作 高橋
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.)
Suzuki Motor Co Ltd
Original Assignee
Suzuki Motor 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 Suzuki Motor Co Ltd filed Critical Suzuki Motor Co Ltd
Priority to JP2004193295A priority Critical patent/JP4403548B2/en
Publication of JP2006016986A publication Critical patent/JP2006016986A/en
Application granted granted Critical
Publication of JP4403548B2 publication Critical patent/JP4403548B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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

Landscapes

  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Description

この発明はガス燃料供給構造に係り、特に保護部材によって燃料配管とレギュレータとの連結部位を前方から覆い、保護部材で燃料配管とレギュレータとの連結部位を保護するとともに、この連結部位を車両前方のエンジンルームで前側に配設してレギュレータの搭載レイアウトの自由度を増加させるガス燃料供給構造に関するものである。   The present invention relates to a gas fuel supply structure. In particular, a protective member covers a connecting portion between a fuel pipe and a regulator from the front, and the protective member protects the connecting portion between the fuel pipe and the regulator. The present invention relates to a gas fuel supply structure that is arranged on the front side in an engine room to increase the degree of freedom of the regulator mounting layout.

車両においては、ガス燃料である圧縮された高圧の天然ガス（「ＣＮＧ」ともいう。）を燃料とするエンジンを搭載した天然ガス自動車（「ＣＮＧ車」または「ＮＧＶ」ともいう。）がある。   Among vehicles, there is a natural gas vehicle (also referred to as “CNG vehicle” or “NGV”) equipped with an engine that uses compressed high-pressure natural gas (also referred to as “CNG”) as gas fuel.

この天然ガス自動車にあっては、圧縮された高圧の天然ガスを貯蔵するガス容器を、車体の車体フロアの下方等の車体下部の空間に搭載しているものがある。かかる場合に、ガス容器内のガス燃料をエンジンに供給する燃料系部品である主止弁、燃料フィルタ、レギュレータ等の部品も、車体下部に配置される。また、キャブオーバタイプの天然ガス自動車においても、燃料系部品が床下の低い位置に取り付けられている。   Some natural gas vehicles have a gas container for storing compressed high-pressure natural gas mounted in a space below the vehicle body such as below the vehicle body floor. In such a case, parts such as a main stop valve, a fuel filter, and a regulator, which are fuel system parts for supplying gas fuel in the gas container to the engine, are also arranged at the lower part of the vehicle body. Also, in a cab-over type natural gas vehicle, fuel system parts are attached at a low position under the floor.

特開２００１−１０７８０６号公報JP 2001-107806 A 特開２００２−２２５５７５号公報JP 2002-225575 A

ところで、従来のガス燃料供給構造において、天然ガス自動車は燃料である天然ガスを高圧条件のもと、ガス容器に貯蔵し、減圧弁（以下「レギュレータ」という。）まで高圧燃料配管で繋ぎ、レギュレータでエンジンに供給する設定圧力に調整した後、インジェクタによって燃料をエンジン内に噴射している。   By the way, in a conventional gas fuel supply structure, a natural gas vehicle stores natural gas as a fuel in a gas container under a high pressure condition, and connects to a pressure reducing valve (hereinafter referred to as a “regulator”) with a high pressure fuel pipe. After adjusting the set pressure to be supplied to the engine, the fuel is injected into the engine by the injector.

高圧のガス燃料を供給する高圧燃料配管は、ガス容器や主止弁、燃料フィルタ、レギュレータ等の夫々の部品間を配管する際に、ステンレス製の金属配管によって連結している。   High-pressure fuel pipes for supplying high-pressure gas fuel are connected by stainless steel metal pipes when piping between gas containers, main stop valves, fuel filters, regulators and the like.

そして、金属製の高圧燃料配管を継手によって固定しているが、継手のシール性をカシメによって確保しているために、外からの力が高圧燃料配管に加わった際には、カシメ部分に隙間ができる等の不都合がある。   The metal high-pressure fuel pipe is fixed by a joint, but since the sealing performance of the joint is secured by caulking, when external force is applied to the high-pressure fuel pipe, there is a gap in the caulking portion. There are inconveniences such as being able to.

また、天然ガス自動車は、時に燃料の最高充填圧力を２０ＭＰａと高圧に設定しているため、僅かなシール部分の異常でも防ぐ必要がある。   Moreover, since the maximum filling pressure of the fuel is sometimes set to a high pressure of 20 MPa in the natural gas vehicle, it is necessary to prevent even a slight seal portion abnormality.

追記すれば、昨今、ガソリン車において非常に機能的にレイアウトされたエンジンルーム内に、天然ガス自動車たるＣＮＧ車専用部品を追加設置することは、非常に困難な状況にある。   If it adds, it is in the very difficult situation to install additionally the part only for CNG vehicles which are natural gas vehicles in the engine room currently laid out very functionally in a gasoline vehicle these days.

そのため、レギュレータを設置する上で、燃料配管の出入口の方向についても制約を受ける。   Therefore, when installing the regulator, the direction of the inlet / outlet of the fuel pipe is also restricted.

この制約の理由の１つとしては、限られた空間内にレギュレータ等を追加設定する上で、燃料配管の継手部位である燃料配管とレギュレータとの連結部位が衝突等の外力によって荷重を受けても、不具合を生じさせないようにレイアウトすることが上げられる。   One of the reasons for this restriction is that when a regulator is additionally set in a limited space, the connection part of the fuel pipe that is a joint part of the fuel pipe and the regulator receives a load due to an external force such as a collision. However, the layout can be improved so as not to cause a problem.

よって、この発明は、高圧な燃料配管の継手部位である燃料配管とレギュレータとの連結部位において、外力が加わる方向、つまり前方から保護する保護部材を取付ブラケットに設けたものである。   Therefore, according to the present invention, a protective member that protects from the direction in which an external force is applied, that is, from the front, is provided on the attachment bracket at the connection portion between the fuel pipe and the regulator, which is a joint portion of the high-pressure fuel pipe.

そこで、この発明は、上述不都合を除去するために、ガス燃料を貯蔵するガス容器を車体に搭載し、該ガス容器内の高圧のガス燃料を供給パイプによりレギュレータに流入させるとともに該レギュレータにより減圧してエンジンに供給するガス燃料供給構造において、車両のエンジンルームに取付ブラケットを介して前記レギュレータを配設し、該レギュレータの前側に供給パイプ接続部を設け、前記供給パイプ接続部に前記供給パイプを連結し、この燃料配管とレギュレータとの連結部位を前方から覆う保護部材を前記取付ブラケットに設け、前記保護部材に前記レギュレータ側へ延出する一対の脚部を設け、該脚部の間に前記連結部位を配設し、前記脚部にレギュレータの周面に沿って延出する延出部を設けたことを特徴とする。 Accordingly, in order to eliminate the above-described disadvantages, the present invention mounts a gas container for storing gas fuel on the vehicle body , and causes the high-pressure gas fuel in the gas container to flow into the regulator through the supply pipe and reduce the pressure by the regulator. In the gas fuel supply structure to be supplied to the engine, the regulator is disposed in the engine room of the vehicle via a mounting bracket, a supply pipe connection is provided on the front side of the regulator, and the supply pipe is connected to the supply pipe connection. A protective member that covers the connecting portion of the fuel pipe and the regulator from the front is provided on the mounting bracket ; a pair of legs that extend toward the regulator are provided on the protective member; A connecting portion is provided, and the leg portion is provided with an extending portion extending along the peripheral surface of the regulator .

以上詳細に説明した如くこの本発明によれば、保護部材で燃料配管とレギュレータとの連結部位を保護することができ、この連結部位を車両のエンジンルームで前側に配設することができ、レギュレータの搭載レイアウトの自由度を増加させ得る。   As described above in detail, according to the present invention, the connecting portion between the fuel pipe and the regulator can be protected by the protective member, and this connecting portion can be disposed on the front side in the engine room of the vehicle. The degree of freedom of mounting layout can be increased.

上述の如く発明したことにより、取付ブラケットに設けた保護部材によって、燃料配管とレギュレータとの連結部位を前方から覆い、保護部材で燃料配管とレギュレータとの連結部位を保護し、この連結部位を車両のエンジンルームで、特に車両前方にあるエンジンルームで前側に配設してレギュレータの搭載レイアウトの自由度を増加させている。   By inventing as described above, the connecting portion between the fuel pipe and the regulator is covered from the front by the protective member provided on the mounting bracket, and the connecting portion between the fuel pipe and the regulator is protected by the protective member. The engine room is arranged on the front side, particularly in the engine room in front of the vehicle, to increase the degree of freedom of the regulator mounting layout.

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１２はこの発明の実施例を示すものである。図３及び図４において、２は天然ガス自動車（「ＣＮＧ車」ともいう。）、４はエンジンルーム、６は車室、８は前席、１０は後席、１２はエンジン、１４はトランスミッション、１６は前輪、１８は後輪である。   1 to 12 show an embodiment of the present invention. 3 and 4, 2 is a natural gas vehicle (also referred to as a “CNG vehicle”), 4 is an engine room, 6 is a passenger compartment, 8 is a front seat, 10 is a rear seat, 12 is an engine, 14 is a transmission, 16 is a front wheel and 18 is a rear wheel.

そして、前記天然ガス自動車２には、図３及び図４に示す如く、天然ガスを加圧した圧縮天然ガス（ＣＮＧ）を貯蔵するガス容器２０を搭載する。   The natural gas vehicle 2 is equipped with a gas container 20 for storing compressed natural gas (CNG) in which natural gas is pressurized, as shown in FIGS.

このとき、このガス容器２０は、前記後席１０の下方で、車幅方向に指向し且つ車両２の前後で並んで前記車室６外に設置される前側第１、後側第２ガス容器２０−１、２０−２と、前記後席１０の後方で、車幅方向に指向し且つ前記車室６内に設置される第３ガス容器２０−３とからなる。   At this time, the gas container 20 is directed to the vehicle width direction below the rear seat 10 and arranged side by side in the front and rear of the vehicle 2 so as to be installed outside the vehicle compartment 6. 20-1, 20-2, and a third gas container 20-3 which is located behind the rear seat 10 and is oriented in the vehicle width direction and installed in the passenger compartment 6.

また、前記ガス容器２０は、ガス容器２０内の高圧のガス燃料を燃料配管２２の一部を構成する供給パイプ２４よりレギュレータ２６に流入させるとともに、このレギュレータ２６により減圧して前記エンジン１２に供給する、図３〜図５に示す如きガス燃料供給構造を有している。   The gas container 20 causes the high-pressure gas fuel in the gas container 20 to flow into the regulator 26 from a supply pipe 24 that constitutes a part of the fuel pipe 22, and the pressure is reduced by the regulator 26 and supplied to the engine 12. The gas fuel supply structure as shown in FIGS.

このとき、図５はガス燃料供給構造を示しているが、前記ガス容器２０の前側第１、後側第２ガス容器２０−１、２０−２と第３ガス容器２０−３との間を２点鎖線で区画した理由は、前側第１、後側第２ガス容器２０−１、２０−２の２本を使用する場合と、前側第１、後側第２ガス容器２０−１、２０−２及び第３ガス容器２０−３の３本を使用する場合とがあるためであり、この実施例においては、３本使用の場合について説明する。   At this time, FIG. 5 shows a gas fuel supply structure. Between the front first and rear second gas containers 20-1 and 20-2 and the third gas container 20-3 of the gas container 20. The reason for partitioning with a two-dot chain line is that the front first and rear second gas containers 20-1 and 20-2 are used, and the front first and rear second gas containers 20-1 and 20 are used. -2 and the third gas container 20-3 may be used, and in this embodiment, the case of using three will be described.

前記ガス燃料供給構造において、図５に示す如く、前記前側第１、後側第２ガス容器２０−１、２０−２に、第１、第２容器元弁用継手２８−１、２８−２を介して図示されない第１、第２容器元弁（「渦流防止弁付容器元弁」ともいう。）を夫々設けるとともに、前記第３ガス容器２０−３には、第３容器元弁用継手２８−３を介して図示されない第３容器元弁を設ける。   In the gas fuel supply structure, as shown in FIG. 5, first and second container main valve joints 28-1 and 28-2 are connected to the front first and rear second gas containers 20-1 and 20-2. The first and second container main valves (also referred to as “vessel original valves with vortex prevention valves”) not shown in the drawings are respectively provided, and the third gas container 20-3 has a third container main valve joint. A third container original valve (not shown) is provided via 28-3.

そして、第１、第２容器元弁用継手２８−１、２８−２を４ウェイ式コネクタ３０に接続して設けるとともに、第３ガス容器２０−３を３ウェイ式コネクタ３２を介して４ウェイ式コネクタ３０に接続して設ける。   The first and second container main valve joints 28-1 and 28-2 are connected to the 4-way connector 30, and the third gas container 20-3 is connected to the 4-way connector 32 via the 4-way connector 32. It is connected to the type connector 30 and provided.

更に、この４ウェイ式コネクタ３０を主止弁３４、高圧側燃料フィルタ３６に夫々接続して設け、この高圧側燃料フィルタ３６を前記供給パイプ２４によりレギュレータ２６に接続して設け、このレギュレータ２６を第１燃料ホース３８−１により低圧側燃料フィルタ４０のアダプタ４２に接続して設けるとともに、このアダプタ４２を第２燃料ホース３８−２により前記エンジン１２に取り付けられる吸気マニホルド４４のデリバリパイプ４６に接続して設ける。   Further, the 4-way connector 30 is provided to be connected to the main stop valve 34 and the high-pressure side fuel filter 36, and the high-pressure side fuel filter 36 is provided to be connected to the regulator 26 by the supply pipe 24. The first fuel hose 38-1 is connected to the adapter 42 of the low pressure side fuel filter 40, and the adapter 42 is connected to the delivery pipe 46 of the intake manifold 44 attached to the engine 12 by the second fuel hose 38-2. Provide.

このとき、デリバリパイプ４６には、燃料圧力センサ取付用ボス４８に取り付けられる燃料圧力センサ４９と燃料温度センサ５０と前記エンジン１２の図示しない気筒に燃料を噴射供給するインジェクタ５２とが設けられる。   At this time, the delivery pipe 46 is provided with a fuel pressure sensor 49 attached to a fuel pressure sensor attaching boss 48, a fuel temperature sensor 50, and an injector 52 for injecting and supplying fuel to a cylinder (not shown) of the engine 12.

なお、符号５４は前記レギュレータ２６近傍の供給パイプ２４に並設されるリリーフパイプ、５６はレギュレータ２６と前記吸気マニホルド４４とを接続するバキュームホース、５８は入口側ヒータ配管、６０は出口側ヒータ配管、３ウェイホースの後５８ａ、６０ａは入口側冷却配管、出口側冷却配管である。   Reference numeral 54 is a relief pipe arranged in parallel with the supply pipe 24 near the regulator 26, 56 is a vacuum hose connecting the regulator 26 and the intake manifold 44, 58 is an inlet side heater pipe, and 60 is an outlet side heater pipe. 58a and 60a after the 3-way hose are an inlet side cooling pipe and an outlet side cooling pipe.

ここで、前記レギュレータ２６について説明すると、レギュレータ２６は、図６〜図１０に示す如く、中間高さ部位に大径のフランジ部６２を有する筒形状を有し、上部に前記バキュームホース５６の接続するバキュームホース接続部６４と、フランジ部６２下方の中間部に前記供給パイプ２４の接続する供給パイプ接続部６６と、前記リリーフパイプ５４の接続するリリーフパイプ接続部６８と、前記入口側冷却配管５８の接続する冷却水入口部７０と、前記出口側冷却配管６０の接続する冷却水出口部７２とを有している。   Here, the regulator 26 will be described. The regulator 26 has a cylindrical shape having a large-diameter flange portion 62 at an intermediate height portion as shown in FIGS. 6 to 10, and the vacuum hose 56 is connected to the upper portion. A vacuum hose connecting portion 64 to be connected, a supply pipe connecting portion 66 to which the supply pipe 24 is connected to an intermediate portion below the flange portion 62, a relief pipe connecting portion 68 to which the relief pipe 54 is connected, and the inlet side cooling pipe 58 The cooling water inlet portion 70 to be connected to and the cooling water outlet portion 72 to which the outlet side cooling pipe 60 is connected.

また、前記第１燃料ホース３８−１の入口側に入口側接続部材７３が設けられ、この入口側接続部材７３が取り付けられる入口取付面７４、及び後述するブラケット８２のブラケット取付面７６として前記レギュレータ２６の中間部は機能する。
尚、前記第１燃料ホース３８−１の出口側には出口側接続部材７５が設けられ、この出口側接続部材７５が取り付けられる出口取付部７７が前記アダプタ４２の前面に設けられるとともに、アダプタ４２の後面には後述するブラケット７８のアダプタ取付面８４に取り付けられるフランジ接続部７９が設けられ、アダプタ４２の上面には第２燃料ホース３８−２の入口側接続部材８１が取り付けられる入口取付部８３が設けられるとともに、アダプタ４２の下面には前記低圧側燃料フィルタ４０の低圧側燃料フィルタ取付部８５とが設けられる。 Further, an inlet side connecting member 73 is provided on the inlet side of the first fuel hose 38-1, and the regulator is used as an inlet mounting surface 74 to which the inlet side connecting member 73 is attached and a bracket mounting surface 76 of a bracket 82 to be described later. The middle part of 26 functions.
An outlet side connection member 75 is provided on the outlet side of the first fuel hose 38-1, and an outlet mounting portion 77 to which the outlet side connection member 75 is attached is provided on the front surface of the adapter 42. A flange connection portion 79 attached to an adapter attachment surface 84 of a bracket 78 described later is provided on the rear surface, and an inlet attachment portion 83 to which an inlet side connection member 81 of the second fuel hose 38-2 is attached on the upper surface of the adapter 42. And a low-pressure fuel filter mounting portion 85 of the low-pressure fuel filter 40 is provided on the lower surface of the adapter 42.

更に、前記レギュレータ２６の中間部に供給パイプ接続部６６、リリーフパイプ接続部６８、冷却水入口部７０、冷却水出口部７２を夫々設ける際に、図６〜図９に示す如く、車両前方側位置に供給パイプ接続部６６及びリリーフパイプ接続部６８を設け、車両斜め右後方側位置に冷却水入口部７０を設けるとともに、車両斜め右前方側位置に冷却水出口部７２を設け、冷却水入口部７０と冷却水出口部７２との形成位置間の前記レギュレータ２６の中間部の右側部位を前記第１燃料ホース３８−１の入口側接続部材７３が取り付けられる前記入口取付面７４とし、前記レギュレータ２６の中間部の左側部位を前記ブラケット取付面７６とする。   Further, when a supply pipe connection part 66, a relief pipe connection part 68, a cooling water inlet part 70, and a cooling water outlet part 72 are provided in the intermediate part of the regulator 26, respectively, as shown in FIGS. A supply pipe connection part 66 and a relief pipe connection part 68 are provided at a position, a cooling water inlet part 70 is provided at a position obliquely rearward to the right side of the vehicle, and a cooling water outlet part 72 is provided at a position obliquely forward right of the vehicle. The right side portion of the intermediate portion of the regulator 26 between the formation positions of the portion 70 and the cooling water outlet portion 72 is the inlet attachment surface 74 to which the inlet side connection member 73 of the first fuel hose 38-1 is attached, and the regulator 26 is defined as the bracket mounting surface 76.

そして、前記天然ガス自動車２において、車両前方のエンジンルーム４に取付ブラケット７８、８２とを介して前記レギュレータ２６を配設し、該レギュレータ２６の前側に供給パイプ接続部６６を設け、前記供給パイプ接続部６６に前記供給パイプ２４を連結し、前記燃料配管２２とレギュレータ２６との連結部位を前方から覆う保護部材８０を前記取付ブラケット７８に設ける構成とする。   In the natural gas vehicle 2, the regulator 26 is disposed in the engine room 4 in front of the vehicle via mounting brackets 78 and 82, a supply pipe connection portion 66 is provided on the front side of the regulator 26, and the supply pipe The supply pipe 24 is connected to the connection portion 66, and a protective member 80 is provided on the mounting bracket 78 to cover the connection portion between the fuel pipe 22 and the regulator 26 from the front.

詳述すれば、図１及び図２に示す如く、前記天然ガス自動車２の車体側に固定される取付ブラケット７８を設け、この取付ブラケット７８には、前記レギュレータ２６のブラケット取付面７６に取り付けられるブラケット８２を介してレギュレータ２６を固定して設け、前記取付ブラケット７８によりレギュレータ２６の左側及び車両前側上方を包囲する。   More specifically, as shown in FIGS. 1 and 2, a mounting bracket 78 fixed to the vehicle body side of the natural gas vehicle 2 is provided, and the mounting bracket 78 is attached to the bracket mounting surface 76 of the regulator 26. The regulator 26 is fixedly provided via a bracket 82, and the mounting bracket 78 surrounds the left side of the regulator 26 and the upper front side of the vehicle.

このとき、取付ブラケット７８の上端部位には、前記低圧側燃料フィルタ４０を取り付ける低圧側燃料フィルタ取付部８５が設けられる。   At this time, a low pressure side fuel filter mounting portion 85 for mounting the low pressure side fuel filter 40 is provided at the upper end portion of the mounting bracket 78.

そして、前記保護部材８０に前記レギュレータ２６側へ延出する一対の脚部８６を設け、該脚部８６の間には、図１及び図２、図１１及び図１２に夫々示す如く、前記燃料配管２２とレギュレータ２６との連結部位を配設する。   The protective member 80 is provided with a pair of legs 86 extending toward the regulator 26, and the fuel is interposed between the legs 86 as shown in FIGS. 1, 2, 11, and 12, respectively. A connecting portion between the pipe 22 and the regulator 26 is provided.

また、前記保護部材８０の脚部８６には、図１及び図２、図１１及び図１２に夫々示す如く、レギュレータ２６の周面、つまりレギュレータ２６のフランジ部６２の周面に沿って延出する延出部８８を配設する（図８の斜線部分及び図１０の太線部分参照）。   Further, the leg portion 86 of the protection member 80 extends along the peripheral surface of the regulator 26, that is, the peripheral surface of the flange portion 62 of the regulator 26, as shown in FIGS. An extending portion 88 is disposed (see the hatched portion in FIG. 8 and the thick portion in FIG. 10).

更に、前記保護部材８０の脚部８６には、図１１及び図１２に示す如く、湾曲部９０を設け、該湾曲部９０と脚部８６とを前記保護部材８０に溶接して設ける。   Further, as shown in FIGS. 11 and 12, the leg portion 86 of the protection member 80 is provided with a bending portion 90, and the bending portion 90 and the leg portion 86 are welded to the protection member 80.

更にまた、前記保護部材８０を、前記取付ブラケット７８と別体に形成するとともに、取付ブラケット７８に固定する構成とする。   Furthermore, the protective member 80 is formed separately from the mounting bracket 78 and is fixed to the mounting bracket 78.

つまり、図１及び図２に示す如く、前記取付ブラケット７８の上部に取付ブラケット側第１係合孔部９２を設けるとともに、取付ブラケット７８の中間部に取付ブラケット側第２係合孔部９４を設け、前記保護部材８０を、図１１及び図１２に示す如く、正面視でＳ字形状とし、上部に保護部材側第１係合突部９６を設けるとともに、下部に保護部材側第２係合突部９８を設け、中間部に前記脚部８６や延出部８８、湾曲部９０を形成するものである。   That is, as shown in FIGS. 1 and 2, the mounting bracket side first engagement hole portion 92 is provided in the upper portion of the mounting bracket 78, and the mounting bracket side second engagement hole portion 94 is provided in the middle portion of the mounting bracket 78. 11 and 12, the protective member 80 is S-shaped when viewed from the front, the protective member side first engagement protrusion 96 is provided at the upper part, and the protective member side second engagement is provided at the lower part. Protruding portions 98 are provided, and the leg portions 86, the extending portions 88, and the curved portions 90 are formed in the intermediate portion.

そして、前記取付ブラケット側第１係合孔部９２に保護部材側第１係合突部９６を係合させるとともに、取付ブラケット側第２係合孔部９４に保護部材側第２係合突部９８を係合させ、前記保護部材８０によって前記燃料配管２２とレギュレータ２６との連結部位を車両前方から覆うものである。   The protective member side first engagement protrusion 96 is engaged with the mounting bracket side first engagement hole 92, and the protection member side second engagement protrusion 94 is engaged with the attachment bracket side second engagement hole 94. 98 is engaged, and the connecting portion between the fuel pipe 22 and the regulator 26 is covered from the front of the vehicle by the protective member 80.

また、符号１００は、前記ガス燃料供給構造の上流側で、且つ図３及び図４に示す如く、前記天然ガス自動車２の外側部位に設けられるガス燃料の充填口、１０２は充填口１００近傍に設けられる逆止弁である。   Further, reference numeral 100 denotes an upstream side of the gas fuel supply structure, and as shown in FIGS. 3 and 4, a gas fuel filling port provided at an outer portion of the natural gas vehicle 2, and 102 is near the filling port 100. It is a check valve provided.

次に作用を説明する。   Next, the operation will be described.

前記天然ガス自動車２の車体側に取付ブラケット７８を固定し、この取付ブラケット７８には、前記レギュレータ２６のブラケット取付面７６に取り付けられるブラケット８２を介してレギュレータ２６を固定し、前記取付ブラケット７８によりレギュレータ２６の左側及び車両前側上方を包囲する。   A mounting bracket 78 is fixed to the vehicle body side of the natural gas vehicle 2, and the regulator 26 is fixed to the mounting bracket 78 via a bracket 82 attached to the bracket mounting surface 76 of the regulator 26. The left side of the regulator 26 and the upper front side of the vehicle are enclosed.

そして、前記取付ブラケット側第１係合孔部９２に保護部材側第１係合突部９６を係合させるとともに、取付ブラケット側第２係合孔部９４に保護部材側第２係合突部９８を係合させ、図１及び図２に示す如く、前記保護部材８０によって前記燃料配管２２とレギュレータ２６との連結部位を車両前方から覆う。   The protective member side first engagement protrusion 96 is engaged with the mounting bracket side first engagement hole 92, and the protection member side second engagement protrusion 94 is engaged with the attachment bracket side second engagement hole 94. 1 and 2, the protective member 80 covers the connecting portion between the fuel pipe 22 and the regulator 26 from the front of the vehicle.

このとき、前記保護部材８０に前記レギュレータ２６側へ延出するように設けた一対の脚部８６の間に、図１及び図２、図１１及び図１２に夫々示す如く、前記燃料配管２２とレギュレータ２６との連結部位を位置させる。   At this time, as shown in FIGS. 1, 2, 11, and 12, between the fuel pipe 22 and the pair of legs 86 provided on the protective member 80 so as to extend toward the regulator 26. The connection part with the regulator 26 is located.

また、前記保護部材８０の脚部８６に設けた延出部８８は、図１及び図２、図１１及び図１２に夫々示す如く、レギュレータ２６の周面、つまりレギュレータ２６のフランジ部６２の周面に沿って延出している（図８の斜線部分及び図１０の太線部分参照）。   Further, the extending portion 88 provided on the leg portion 86 of the protection member 80 is formed on the peripheral surface of the regulator 26, that is, the peripheral portion of the flange portion 62 of the regulator 26, as shown in FIGS. 1, 2, 11, and 12. It extends along the surface (see the hatched portion in FIG. 8 and the thick line portion in FIG. 10).

これにより、前記燃料配管２２とレギュレータ２６との連結部位を前方から覆う保護部材８０を前記取付ブラケット７８に設ける構成としたことによって、保護部材８０で燃料配管２２とレギュレータ２６との連結部位を保護することができ、この連結部位を車両前方のエンジンルーム４で前側に配設することができ、レギュレータ２６の搭載レイアウトの自由度を増加させ得る。   Thus, the protective member 80 that covers the connecting portion between the fuel pipe 22 and the regulator 26 from the front is provided on the mounting bracket 78, so that the connecting portion between the fuel pipe 22 and the regulator 26 is protected by the protective member 80. This connecting portion can be disposed on the front side in the engine room 4 in front of the vehicle, and the degree of freedom of the mounting layout of the regulator 26 can be increased.

また、前記保護部材８０に前記レギュレータ２６側へ延出する一対の脚部８６を設け、該脚部８６の間には、前記燃料配管２２とレギュレータ２６との連結部位を配設したことにより、脚部８６と保護部材８０で形成されるスペースに連結部材を配設することができ、車両前方からの衝突時には、まず脚部８６に荷重が加わり、このスペースに力が加わらないので、連結部位を効果的に保護することができる。   In addition, a pair of legs 86 extending toward the regulator 26 is provided on the protective member 80, and a connecting portion between the fuel pipe 22 and the regulator 26 is disposed between the legs 86. A connecting member can be disposed in a space formed by the leg portion 86 and the protection member 80. When a collision occurs from the front of the vehicle, a load is first applied to the leg portion 86, and no force is applied to this space. Can be effectively protected.

更に、前記保護部材８０の脚部８６には、レギュレータ２６の周面に沿って延出する延出部８８を設けたことにより、この延出部８８によって接触面積を確保してレギュレータ２６が受ける荷重を分散させることができ、レギュレータ２６の破損を防止することができる。   Further, the leg portion 86 of the protection member 80 is provided with an extension portion 88 extending along the peripheral surface of the regulator 26, so that the contact area is secured by the extension portion 88 and is received by the regulator 26. The load can be dispersed and the regulator 26 can be prevented from being damaged.

特に、前記レギュレータ２６のフランジ部６２に沿って延出部８８を配設したことにより、レギュレータ２６の最も剛性の高い部位であるフランジ部６２で過重を受けることができ、レギュレータ２６の破損をより効果的に防止することができる。   In particular, by providing the extending portion 88 along the flange portion 62 of the regulator 26, the flange portion 62, which is the most rigid portion of the regulator 26, can be overloaded, and the regulator 26 can be further damaged. It can be effectively prevented.

また、前記保護部材８０の脚部８６に湾曲部９０を設け、該湾曲部９０と脚部８６とを前記保護部材８０に溶接して設けたことにより、湾曲部９０によって脚部８６の剛性を更に向上させることができるとともに、脚部８６の溶接部位を確保することができるものである。   Further, the bending portion 90 is provided on the leg portion 86 of the protection member 80, and the bending portion 90 and the leg portion 86 are welded to the protection member 80, whereby the rigidity of the leg portion 86 is increased by the bending portion 90. In addition to the improvement, the welded portion of the leg 86 can be secured.

更に、前記保護部材８０を、前記取付ブラケット７８と別体に形成するとともに、取付ブラケット７８に固定する構成としたことにより、保護部材８０の形状の自由度が増すとともに、保護部材８０を天然ガス自動車２の専用部品であるレギュレータ２６の取付ブラケット７８に固定することができ、ベース車両の改造部位の減少を図ることができる。また、保護部材８０を別体とすることでブラケットを７８、８２を介してレギュレータをまず車体に固定した後接続部６６と供給パイプ２４とを組付け、その後保護部材をブラケット７８に取付けるので、組付け性を悪化させることなく、十分に剛性を有する保護部材を設けることができる。   Furthermore, since the protective member 80 is formed separately from the mounting bracket 78 and is fixed to the mounting bracket 78, the degree of freedom of the shape of the protective member 80 is increased and the protective member 80 is made of natural gas. It can be fixed to the mounting bracket 78 of the regulator 26, which is a dedicated part of the automobile 2, and the number of remodeled parts of the base vehicle can be reduced. Further, since the bracket is first fixed to the vehicle body via the brackets 78 and 82 by attaching the protective member 80 separately, the connecting portion 66 and the supply pipe 24 are assembled, and then the protective member is attached to the bracket 78. A protective member having sufficient rigidity can be provided without deteriorating the assemblability.

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、この発明の実施例においては、天然ガス自動車（「ＣＮＧ車」ともいう。）についてのみ説明したが、天然ガス自動車以外にも、高圧燃料配管を用いる、液化天然ガス自動車（「ＬＰＧ車」ともいう。）や液化石油ガス自動車（「ＬＰガス車」ともいう。例えばタクシー等）にも適用可能であるとともに、燃料電池車（「ＦＣＶ」ともいう。）にも応用可能であり、しかもガス燃料内燃機関車両であれば、４輪で制限されず、２輪や特機に適用することも可能である。   For example, in the embodiment of the present invention, only a natural gas vehicle (also referred to as a “CNG vehicle”) has been described, but in addition to a natural gas vehicle, a liquefied natural gas vehicle (“LPG vehicle”) that uses high-pressure fuel piping. It can also be applied to liquefied petroleum gas vehicles (also referred to as “LP gas vehicles”, for example, taxis), as well as fuel cell vehicles (also referred to as “FCVs”), and gas. If it is a fuel internal combustion engine vehicle, it is not limited to four wheels, and can be applied to two wheels and special machines.

すなわち、ガス燃料内燃機関車両にて、高圧燃料配管を要し、レギュレータによる燃料を減圧する車両全般に応用が可能である。また、気体燃料をステンレス製などの金属製配管にて継手を介して連結する構造の車両に展開することができる。更に、燃料電池車の水素を燃料とする車両において、高圧燃料配管を要する車両にも応用可能である。   That is, the gas fuel internal combustion engine vehicle can be applied to all vehicles that require high-pressure fuel piping and depressurize the fuel by the regulator. Moreover, it can expand | deploy to the vehicle of the structure which connects gaseous fuel via a coupling with metal piping, such as stainless steel. Furthermore, the present invention can be applied to a vehicle that requires high-pressure fuel piping in a fuel cell vehicle using hydrogen as fuel.

また、この発明の実施例においては、保護部材を設ける際に、レギュレータ側に延出する一対の脚部を形成する構成としたが、いずれか一方の脚部のみによって前記保護部材を形成する特別構成とすることも可能である。   In the embodiment of the present invention, when the protective member is provided, a pair of leg portions extending to the regulator side is formed. However, the protective member is formed by only one of the leg portions. A configuration is also possible.

更に、この発明の実施例においては、保護部材とこの保護部材に形成される脚部や延出部、湾曲部を別体に形成するとともに、保護部材に溶接にて固定する構成としたが、保護部材と脚部や延出部、湾曲部とを一体的に成形する特別構成とすることも可能である。   Furthermore, in the embodiment of the present invention, the protective member and the leg portion and the extending portion formed on the protective member, and the curved portion are formed separately and fixed to the protective member by welding. It is also possible to adopt a special configuration in which the protective member and the leg portion, the extended portion, and the curved portion are integrally formed.

すなわち、板状の保護部材から脚部や延出部、湾曲部を切り出し、レギュレータ側に延出させて脚部や延出部、湾曲部を形成するものである。   That is, a leg part, an extension part, and a curved part are cut out from a plate-shaped protective member, and extended to the regulator side to form a leg part, an extended part, and a curved part.

そして、前記保護部材から切り出し、レギュレータ側に延出させて一対の脚部を形成する際に、延出角度を調整すれば、延出先端部位間の距離を任意に設定することが可能となり、保護部材の剛性を勘案しつつ、レギュレータのレイアウトにも配慮した保護部材とすることができる。   And when cutting out from the protective member and extending to the regulator side to form a pair of legs, if the extension angle is adjusted, it is possible to arbitrarily set the distance between the extended tip portions, It is possible to provide a protective member that takes into account the rigidity of the protective member and also considers the regulator layout.

この発明の実施例を示す燃料配管とレギュレータとの連結部位を前方から覆った保護部材の概略平面図である。It is a schematic plan view of the protection member which covered the connection part of the fuel piping which shows the Example of this invention, and the regulator from the front. 燃料配管とレギュレータとの連結部位を前方から覆った保護部材の概略正面図である。It is a schematic front view of the protection member which covered the connection part of fuel piping and a regulator from the front. 天然ガス自動車の概略平面図である。It is a schematic plan view of a natural gas vehicle. 天然ガス自動車の概略左側面図である。It is a schematic left view of a natural gas vehicle. ガス燃料配管構造の接続状態を示す概略斜視図である。It is a schematic perspective view which shows the connection state of gas fuel piping structure. レギュレータの正面図である。It is a front view of a regulator. レギュレータの底面図である。It is a bottom view of a regulator. レギュレータの右側面図である。It is a right view of a regulator. レギュレータの背面図である。It is a rear view of a regulator. レギュレータの概略平面図である。It is a schematic plan view of a regulator. 保護部材の背面図である。It is a rear view of a protection member. レギュレータのフランジ部に保護部材を配設した状態の概略拡大説明図である。It is a general | schematic expansion explanatory drawing of the state which has arrange | positioned the protection member in the flange part of a regulator.

符号の説明Explanation of symbols

２ 天然ガス自動車（「ＣＮＧ車」ともいう。）
４ エンジンルーム
６ 車室
１２ エンジン
１４ トランスミッション
２０ ガス容器
２０−１ 前側第１ガス容器
２０−２ 後側第２ガス容器
２０−３ 第３ガス容器
２２ 燃料配管
２４ 供給パイプ
２６ レギュレータ
２８−１ 第１容器元弁用継手
２８−２ 第２容器元弁用継手
２８−３ 第３容器元弁用継手
３０ ４ウェイ式コネクタ
３２ ３ウェイ式コネクタ
３４ 主止弁
３６ 高圧側燃料フィルタ
３８−１ 第１燃料ホース
３８−２ 第２燃料ホース
４０ 低圧側燃料フィルタ
４２ アダプタ
４４ 吸気マニホルド
４６ デリバリパイプ
４８ 燃料圧力センサ取付用ボス
４９ 燃料圧力センサ
５０ 燃料温度センサ
５２ インジェクタ
５４ リリーフパイプ
５６ バキュームホース
５８ 入口側ヒータ配管
５８ａ 入口側冷却配管
６０ 出口側ヒータ配管
６０ａ 出口側冷却配管
６２ フランジ部
６４ バキュームホース接続部
６６ 供給パイプ接続部
６８ リリーフパイプ接続部
７０ 冷却水入口部
７２ 冷却水出口部
７３ 入口側接続部材
７４ 入口取付面
７５ 出口側接続部材
７６ ブラケット取付面
７７ 出口取付部
７８ 取付ブラケット
７９ フランジ接続部
８０ 保護部材
８１ 入口側接続部材
８２ ブラケット
８３ 入口取付部
８４ アダプタ取付面
８５ 低圧側燃料フィルタ取付部
８６ 脚部
８８ 延出部
９０ 湾曲部
９２ 取付ブラケット側第１係合孔部
９４ 取付ブラケット側第２係合孔部
９６ 保護部材側第１係合突部
９８ 保護部材側第２係合突部
１００ 充填口
１０２ 逆止弁 2 Natural gas vehicles (also referred to as “CNG vehicles”)
4 Engine room 6 Car compartment 12 Engine 14 Transmission 20 Gas container 20-1 Front side first gas container 20-2 Rear side second gas container 20-3 Third gas container 22 Fuel pipe 24 Supply pipe 26 Regulator 28-1 First Joint for original valve 28-2 Joint for second original valve 28-3 Joint for third original valve 30 4-way connector 32 3-way connector 34 Main stop valve 36 High-pressure side fuel filter 38-1 First fuel Hose 38-2 Second fuel hose 40 Low pressure side fuel filter 42 Adapter 44 Intake manifold 46 Delivery pipe 48 Fuel pressure sensor mounting boss 49 Fuel pressure sensor 50 Fuel temperature sensor 52 Injector 54 Relief pipe 56 Vacuum hose 58 Inlet side heater piping 58a Inlet side cooling piping 60 Outlet side heater arrangement 60a Outlet side cooling pipe 62 Flange part 64 Vacuum hose connection part 66 Supply pipe connection part 68 Relief pipe connection part 70 Cooling water inlet part 72 Cooling water outlet part 73 Inlet side connection member 74 Inlet attachment surface 75 Outlet side connection member 76 Bracket attachment Surface 77 Outlet mounting portion 78 Mounting bracket 79 Flange connection portion 80 Protection member 81 Inlet side connection member 82 Bracket 83 Inlet mounting portion 84 Adapter mounting surface 85 Low pressure side fuel filter mounting portion 86 Leg portion 88 Extension portion 90 Curved portion 92 Mounting bracket Side first engagement hole 94 Mounting bracket side second engagement hole 96 Protection member side first engagement protrusion 98 Protection member side second engagement protrusion 100 Filling port 102 Check valve

Claims (2)

ガス燃料を貯蔵するガス容器を車体に搭載し、該ガス容器内の高圧のガス燃料を供給パイプによりレギュレータに流入させるとともに該レギュレータにより減圧してエンジンに供給するガス燃料供給構造において、車両のエンジンルームに取付ブラケットを介して前記レギュレータを配設し、該レギュレータの前側に供給パイプ接続部を設け、前記供給パイプ接続部に前記供給パイプを連結し、この燃料配管とレギュレータとの連結部位を前方から覆う保護部材を前記取付ブラケットに設け、前記保護部材に前記レギュレータ側へ延出する一対の脚部を設け、該脚部の間に前記連結部位を配設し、前記脚部にレギュレータの周面に沿って延出する延出部を設けたことを特徴とするガス燃料供給構造。 In a gas fuel supply structure in which a gas container for storing gas fuel is mounted on a vehicle body, high-pressure gas fuel in the gas container flows into a regulator through a supply pipe and is decompressed by the regulator and is supplied to the engine. The regulator is disposed in the room via a mounting bracket, a supply pipe connecting portion is provided on the front side of the regulator, the supply pipe is connected to the supply pipe connecting portion, and a connecting portion between the fuel pipe and the regulator is disposed forward. A protective member is provided on the mounting bracket, a pair of leg portions extending to the regulator side is provided on the protective member, the connecting portion is disposed between the leg portions, and a peripheral portion of the regulator is provided on the leg portion. A gas fuel supply structure comprising an extending portion extending along a surface . 前記レギュレータにフランジ部を設け、該フランジ部に沿って前記延出部を配設することを特徴とする請求項１に記載のガス燃料供給構造。The gas fuel supply structure according to claim 1, wherein the regulator is provided with a flange portion, and the extending portion is disposed along the flange portion.
JP2004193295A 2004-06-30 2004-06-30 Gas fuel supply structure Expired - Fee Related JP4403548B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004193295A JP4403548B2 (en) 2004-06-30 2004-06-30 Gas fuel supply structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004193295A JP4403548B2 (en) 2004-06-30 2004-06-30 Gas fuel supply structure

Publications (2)

Publication Number Publication Date
JP2006016986A JP2006016986A (en) 2006-01-19
JP4403548B2 true JP4403548B2 (en) 2010-01-27

Family

ID=35791506

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004193295A Expired - Fee Related JP4403548B2 (en) 2004-06-30 2004-06-30 Gas fuel supply structure

Country Status (1)

Country Link
JP (1) JP4403548B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5477634B2 (en) 2010-02-12 2014-04-23 スズキ株式会社 Gas fuel supply device for vehicle engine
JP5365932B2 (en) * 2010-03-04 2013-12-11 スズキ株式会社 Fuel supply device for vehicle engine
JP7394737B2 (en) 2020-10-30 2023-12-08 愛三工業株式会社 fuel supply device

Also Published As

Publication number Publication date
JP2006016986A (en) 2006-01-19

Similar Documents

Publication Publication Date Title
KR100925937B1 (en) Mounting structure for gas tank of vehicle
JP5898402B2 (en) Motorcycle body frame
US8387736B2 (en) Fuel supply apparatus and motorcycle including same
US9068534B2 (en) Compressed natural gas pressure regulator protective bracket
SE1651208A1 (en) An arrangement for mounting a gas pipe to a vehicle
JP4403548B2 (en) Gas fuel supply structure
JP2023548481A (en) Method for manufacturing fuel rails for pressure vessel systems, fuel rails, pressure vessel systems, and automobiles
US20220242224A1 (en) A fuel gas system for a vehicle
JP5446890B2 (en) Fuel supply device for vehicle engine
CN104736916A (en) Liquefied gas fuel filling system
JP2007276614A (en) Canister piping structure
EP1391599A1 (en) Engine system for an alternatively fuelled vehicle
WO2010077187A1 (en) Trailer and vehicle with a trailer
JP5365932B2 (en) Fuel supply device for vehicle engine
CN102787954B (en) Tubing structure for turbocharger for vehicle
JP4660288B2 (en) Liquefied gas fuel supply device
WO2023119921A1 (en) Supply pipe for vehicular gaseous fuel
JP3846672B2 (en) Vehicle fuel supply device
JP5180686B2 (en) Fuel injection device for backbone type motorcycle
JP3812241B2 (en) Vehicle fuel supply device
EP3914849B1 (en) Gas distribution system for feeding gas contained in different tanks to an engine of vehicle powered by alternative gas fuel
JP2006131028A (en) Fuel tank structure of motorcycle
JP2017160828A (en) Fuel return device
JP4541974B2 (en) Liquefied gas fuel supply device
JP5643031B2 (en) Vehicle fuel supply device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070613

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090728

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090916

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20091009

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20091022

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121113

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121113

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121113

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131113

Year of fee payment: 4

LAPS Cancellation because of no payment of annual fees