JP4144750B2 - Relief type pressure regulating valve - Google Patents

Relief type pressure regulating valve Download PDF

Info

Publication number
JP4144750B2
JP4144750B2 JP2003403093A JP2003403093A JP4144750B2 JP 4144750 B2 JP4144750 B2 JP 4144750B2 JP 2003403093 A JP2003403093 A JP 2003403093A JP 2003403093 A JP2003403093 A JP 2003403093A JP 4144750 B2 JP4144750 B2 JP 4144750B2
Authority
JP
Japan
Prior art keywords
valve
fuel
valve body
pressure regulating
type pressure
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
JP2003403093A
Other languages
Japanese (ja)
Other versions
JP2005163615A (en
Inventor
光雄 中川
新一郎 谷澤
東一郎 引地
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.)
Honda Motor Co Ltd
Original Assignee
Honda 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 Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP2003403093A priority Critical patent/JP4144750B2/en
Publication of JP2005163615A publication Critical patent/JP2005163615A/en
Application granted granted Critical
Publication of JP4144750B2 publication Critical patent/JP4144750B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/54—Arrangement of fuel pressure regulators
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Safety Valves (AREA)

Description

本発明は、燃料ポンプユニットの燃料通路内の圧力上昇を抑制するリリーフ式調圧バルブに係り、特に、圧力勾配（燃圧の上昇に対する吐出流量の上昇率）を低く抑えながら弁座への弁体の食い込みを防止できるリリーフ式調圧バルブに関する。   The present invention relates to a relief type pressure regulating valve that suppresses an increase in pressure in a fuel passage of a fuel pump unit, and in particular, a valve body to a valve seat while suppressing a pressure gradient (an increase rate of a discharge flow rate with respect to an increase in fuel pressure). TECHNICAL FIELD The present invention relates to a relief type pressure regulating valve that can prevent bite.

インジェクタへ供給する燃料の圧力（燃圧）を制御するために、燃料ポンプとインジェクタとを結ぶ燃料通路に調圧バルブが設けられる。調圧バルブは燃料通路の燃圧が所定の基準値を超えたときに開き、過剰な燃料を燃料ポンプの上流側や燃料タンクに導いて燃圧を下降させる。   In order to control the pressure (fuel pressure) of the fuel supplied to the injector, a pressure regulating valve is provided in a fuel passage connecting the fuel pump and the injector. The pressure regulating valve opens when the fuel pressure in the fuel passage exceeds a predetermined reference value, and guides excess fuel to the upstream side of the fuel pump or the fuel tank to lower the fuel pressure.

特許文献１には、ダイヤフラム式の調圧バルブ（プレッシャレギュレータ）が開示されている。特許文献２には、ダイヤフラム式の調圧バルブをインジェクタの上部に配置した構造が開示されている。特許文献３には、球弁とコイルスプリングとを用いたリリーフ式調圧バルブが開示されている。特許文献４には、リリーフ式の調圧バルブが開示されている。
実開昭６０−１４３１５９号 特開２０００−２４９０２８号公報 実開昭５２−３４５０７号 特開２００３−２５４１８７号公報 Patent Document 1 discloses a diaphragm type pressure regulating valve (pressure regulator). Patent Document 2 discloses a structure in which a diaphragm-type pressure regulating valve is arranged at the top of an injector. Patent Document 3 discloses a relief type pressure regulating valve using a ball valve and a coil spring. Patent Document 4 discloses a relief type pressure regulating valve.
Japanese Utility Model Sho 60-143159 JP 2000-249028 A Japanese Utility Model Publication No. 52-34507 JP 2003-254187 A

ダイヤフラム式の調圧バルブでは、燃圧を受ける面を広く確保できるので、燃圧の上昇に対する吐出流量の上昇率、すなわち圧力勾配を低く設定できる。したがって、燃圧の変化に対する吐出流量の増減を正確に調整することができる反面、構造が複雑になる。   In the diaphragm type pressure regulating valve, a wide area for receiving the fuel pressure can be secured, so that the rate of increase of the discharge flow rate relative to the increase of the fuel pressure, that is, the pressure gradient can be set low. Therefore, although the increase / decrease in the discharge flow rate with respect to the change in the fuel pressure can be adjusted accurately, the structure becomes complicated.

これに対して、リリーフ式調圧バルブでは燃圧を受ける弁体の形状が球面となるので、圧力勾配を低く設定することが難しい。なお、リリーフ式調圧バルブであっても、オリフィス径を大きくすれば圧力勾配を低く設定することができる。しかしながら、オリフィス径を大きくすると弁体が座面に食い込む可能性がある。   On the other hand, in the relief type pressure regulating valve, since the shape of the valve body that receives the fuel pressure is a spherical surface, it is difficult to set the pressure gradient low. Even in the relief type pressure regulating valve, the pressure gradient can be set low by increasing the orifice diameter. However, if the orifice diameter is increased, the valve body may bite into the seat surface.

本発明の目的は、上記した従来技術の課題を解決し、圧力勾配を低く抑えながら弁座への弁体の食い込みを防止できるリリーフ式調圧バルブを提供することにある。   An object of the present invention is to solve the above-described problems of the prior art and to provide a relief type pressure regulating valve that can prevent the valve body from biting into the valve seat while keeping the pressure gradient low.

上記した目的を達成するために、本発明は、流体通路の端面に形成された環状の座面を有する弁座およびその弁体と、前記弁体を閉弁方向に付勢するスプリングとを備えたリリーフ式調圧バルブにおいて、以下のような手段を講じた点に特徴がある。
(1)閉弁位置まで付勢された弁体と当接して、当該弁体の弁座への当接力を制限する突き当て部材を含むことを特徴とする。
(2)座面の径が流体通路の径よりも大きいことを特徴とする。
(3)突き当て部材は、流体通路と同芯状の棒状体であり、その先端に弁体が突き当たって、当該弁体の弁座への当接力を制限することを特徴とする。 In order to achieve the above-described object, the present invention includes a valve seat having an annular seat surface formed on an end face of a fluid passage, a valve body thereof, and a spring for biasing the valve body in a valve closing direction. The relief type pressure regulating valve is characterized in that the following measures are taken.
(1) An abutting member that abuts on the valve body biased to the valve closing position and restricts the abutting force of the valve body on the valve seat is included.
(2) The diameter of the seating surface is larger than the diameter of the fluid passage.
(3) The abutting member is a rod-like body that is concentric with the fluid passage, and the valve body abuts on the tip of the abutting member to limit the contact force of the valve body to the valve seat.

本発明によれば、以下のような効果が達成される。
(1)突き当て部材により、弁体の弁座への当接力が制限されるので、弁体の弁座への食い込み現象が防止される。
(2)弁体の弁座への食い込み現象が突き当て部材により防止されるので、座面の径を大きくすることが可能になり、その結果、燃圧の上昇に対する吐出流量の上昇率、すなわち圧力勾配を低く設定できる。
(3)突き当て部材を流体通路と同芯状の棒状体としたので、突き当て部材を追加してもリリーフ式調圧バルブの容積が増加しない。 According to the present invention, the following effects are achieved.
(1) Since the abutting member restricts the contact force of the valve body to the valve seat, the biting phenomenon of the valve body into the valve seat is prevented.
(2) Since the abutment member prevents the valve element from biting into the valve seat, it is possible to increase the diameter of the seating surface, and as a result, the rate of increase in the discharge flow rate relative to the increase in fuel pressure, that is, the pressure The slope can be set low.
(3) Since the abutting member is a rod-shaped body concentric with the fluid passage, the volume of the relief type pressure regulating valve does not increase even if the abutting member is added.

以下、図面を参照して本発明の好ましい実施の形態について詳細に説明する。
図１は、本発明に係るリリーフ式調圧バルブを適用した燃料ポンプユニットが搭載された自動二輪車の燃料系統の配置構造を示した部分断面図である。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a partial sectional view showing an arrangement structure of a fuel system of a motorcycle equipped with a fuel pump unit to which a relief type pressure regulating valve according to the present invention is applied.

車体フレームは、車体前方のヘッドパイプ３０１と、このヘッドパイプ３０１からリア側下方に延びたＬ字状あるいはＵ字状のアンダーボーンフレーム（またはメインフレーム）３０２と、アンダーボーンフレーム３０２に結合された左右一対のサイドアーム３０３とを主要な構成とし、アンダーボーンフレーム３０２の下部にブラケット３０４，３０５，３０６を介してパワーユニット３０７が懸架されている。   The vehicle body frame is coupled to a head pipe 301 in front of the vehicle body, an L-shaped or U-shaped underbone frame (or main frame) 302 extending downward from the head pipe 301 to the rear side, and an underbone frame 302. A pair of left and right side arms 303 is a main component, and a power unit 307 is suspended below the underbone frame 302 via brackets 304, 305, and 306.

パワーユニット３０７には、車体前方に配置されたエアクリーナ３０８および吸気管３０９が連結され、これらを通して吸気し、排気管３１０を通して車体後部に配置されたマフラより排気する。吸気通路３１９の途中にはインジェクタ４００が設けられ、このインジェクタ４００に、本発明に係るリリーフ式調圧バルブを採用した燃料ポンプユニット３００が連結されている。燃料ポンプユニット３００は、燃料フィード配管３１２および燃料リターン配管３１３を介して、車体後部上方に配置された燃料タンク３２０と連結されている。燃料タンク３２０には、外部からの燃料補給口であるリッド３２１が設けられている。   An air cleaner 308 and an intake pipe 309 arranged in front of the vehicle body are connected to the power unit 307, and air is taken in through these and exhausted from the muffler arranged in the rear part of the vehicle body through the exhaust pipe 310. An injector 400 is provided in the middle of the intake passage 319, and a fuel pump unit 300 employing the relief type pressure regulating valve according to the present invention is connected to the injector 400. The fuel pump unit 300 is connected to a fuel tank 320 disposed above the rear of the vehicle body via a fuel feed pipe 312 and a fuel return pipe 313. The fuel tank 320 is provided with a lid 321 that is a fuel supply port from the outside.

図２は、本発明に係るリリーフ式調圧バルブを採用した燃料ポンプユニットの車体前後方向に沿った断面図であり、フィルターユニット１と、ポンプボディ２と、モータユニット３と、バルブボディ４とを一体に連結して構成される。   FIG. 2 is a cross-sectional view of the fuel pump unit employing the relief type pressure regulating valve according to the present invention along the longitudinal direction of the vehicle body. The filter unit 1, the pump body 2, the motor unit 3, the valve body 4, and the like. Are integrally connected.

前記フィルターユニット１には、前記燃料フィード配管３１２と連結されて燃料タンク３２０から燃料を受け入れる燃料入口１０２と、前記燃料リターン配管３１３と連結されて燃料タンク３２０へベーパーを戻す燃料戻し口１０１と、燃料を濾過するフィルタ１０３が収容されるフィルタ室１０４とが形成され、前記フィルタ室１０４の下部には水抜き室１０５および水抜き口１０６が形成されている。   The filter unit 1 is connected to the fuel feed pipe 312 and receives the fuel from the fuel tank 320. The fuel return pipe 313 is connected to the fuel return pipe 313 and returns the vapor to the fuel tank 320. A filter chamber 104 in which a filter 103 for filtering fuel is accommodated is formed. A drain chamber 105 and a drain port 106 are formed in the lower portion of the filter chamber 104.

モータユニット３には、ステータコイル２０１およびマグネットロータ２０２を主要な構成とするポンプモータ２００が実装され、その回転軸２０３にはインペラ２０４が挿貫されている。モータユニット３の外側端部にはドライバー回路を含む制御回路基板２０５が配置され、その外側は放熱フィン２０７を備えた保護パネル２０６で覆われている。   A pump motor 200 mainly composed of a stator coil 201 and a magnet rotor 202 is mounted on the motor unit 3, and an impeller 204 is inserted through the rotating shaft 203. A control circuit board 205 including a driver circuit is disposed on the outer end portion of the motor unit 3, and the outer side thereof is covered with a protective panel 206 having heat radiation fins 207.

図３は、図２のＡ−Ａ線に沿ったバルブボディ４の断面図であり、燃料通路の過剰圧力に応答して燃料を排出し、前記燃料通路の圧力を調整するリリーフ式の調圧バルブ４０３と、所定の角度を超えて車体が傾斜したことに感応して燃料通路を遮断する第１および第２の傾斜時燃料カットバルブ４０１，４０２と、残圧保持用チェックバルブ（逆止弁）４０４と、インジェクタ４００を保持するインジェクタホルダ４０５とが一体に形成されている。   FIG. 3 is a cross-sectional view of the valve body 4 taken along the line AA in FIG. 2, and relief type pressure regulation that discharges fuel in response to excessive pressure in the fuel passage and adjusts the pressure in the fuel passage. A valve 403, first and second lean-time fuel cut valves 401, 402 that shut off the fuel passage in response to the tilting of the vehicle body beyond a predetermined angle, and a residual pressure maintaining check valve (check valve) ) 404 and an injector holder 405 for holding the injector 400 are integrally formed.

前記リリーフ式の調圧バルブ４０３は、流体通路４３１の周方向に形成された環状の座面４３２を有する弁座４３０およびその弁体４３３と、弁体４３３を支持する支持部材４３４と、前記支持部材４３４を弁体４３３と共に閉弁方向へ付勢するスプリング４３５とを備え、前記流体通路４３１には、これと同芯状に突き当て棒４３６が配置されている。前記突き当て棒４３６は、弁体４３３が閉弁位置までスプリング４３５により付勢された際に、その先端部を弁体４３３に当接させることにより、当該弁体４３３の座面４３２への当接力を制限する。これにより、弁体４３３の弁座４３０（座面４３２）への食い込みが防止される。   The relief type pressure regulating valve 403 includes a valve seat 430 having an annular seat surface 432 formed in the circumferential direction of the fluid passage 431, a valve body 433 thereof, a support member 434 that supports the valve body 433, and the support A spring 435 that urges the member 434 together with the valve body 433 in the valve closing direction is provided, and an abutting rod 436 is disposed in the fluid passage 431 so as to be concentric with the spring 435. When the valve body 433 is urged by the spring 435 to the valve closing position, the abutting rod 436 abuts the valve body 433 against the seat surface 432 of the valve body 433. Limit contact. This prevents the valve body 433 from biting into the valve seat 430 (seat surface 432).

このように、本実施形態では弁体４３３の弁座４３０（座面４３２）への食い込みが突き当て棒４３６により防止されるので座面４３２の径を大きくすることができる。したがって、本実施形態では座面４３２の径を流体通路４３１の径よりも大きくすることで、圧力勾配を従来よりも小さくできる。   Thus, in this embodiment, since the biting of the valve body 433 into the valve seat 430 (seat surface 432) is prevented by the butting rod 436, the diameter of the seat surface 432 can be increased. Therefore, in the present embodiment, the pressure gradient can be made smaller than the conventional one by making the diameter of the seating surface 432 larger than the diameter of the fluid passage 431.

前記第１の傾斜時燃料カットバルブ４０１は、車両の正立状態で斜め左方上向きの姿勢をとる円筒状の第１待機管４０１ｂを備え、第２の傾斜時燃料カットバルブ４０２は、それとは反対に斜め右方上向きの姿勢をとる円筒状の第２待機管４０２ｂを備える。第１待機管４０１ｂの上端は第２待機管４０２ｂに接続されている。第１および第２待機管４０１ｂ，４０２ｂの各上部には弁座４０１ｃ，４０２ｃがそれぞれ形成されている。第１及び第２待機管４０１ｂ，４０２ｂ内には、各弁座４０１ｃ，４０２ｃにそれぞれ着座し得るチェックボール４０１ａ，４０２ａが収容されている。   The first lean-time fuel cut valve 401 includes a cylindrical first standby pipe 401b that is inclined obliquely upward in the upright state of the vehicle, and the second lean-time fuel cut valve 402 is On the other hand, a cylindrical second standby pipe 402b that is inclined obliquely upward to the right is provided. The upper end of the first standby pipe 401b is connected to the second standby pipe 402b. Valve seats 401c and 402c are formed on the upper portions of the first and second standby pipes 401b and 402b, respectively. The first and second standby pipes 401b and 402b accommodate check balls 401a and 402a that can be seated on the valve seats 401c and 402c, respectively.

図４は、前記傾斜時燃料カットバルブ４０１，４０２による燃料カット機能を模式的に示した図である。車両が正立姿勢であれば、第１待機管４０１ｂ内のチェックボール４０１ａおよび第２待機管４０２ｂ内のチェックボール４０２ａがいずれも開弁位置にあるので、図３にも示したように、燃料供給通路１５３から第１待機管４０１ｂ内へ供給された燃料は、第２待機管４０２ｂおよびチェックバルブ４０４を経由してインジェクタ４００へ供給される。   FIG. 4 is a view schematically showing a fuel cut function by the fuel cut valves 401 and 402 at the time of tilting. If the vehicle is in an upright posture, both the check ball 401a in the first standby pipe 401b and the check ball 402a in the second standby pipe 402b are in the valve open position, so as shown in FIG. The fuel supplied from the supply passage 153 into the first standby pipe 401b is supplied to the injector 400 via the second standby pipe 402b and the check valve 404.

これに対して、車両が左方または右方へ大きく傾斜（＞θref）した場合には、第１待機管４０１ｂまたは第２待機管４０２ｂが略水平に横転するのに伴い、そのチェックボール４０１ａ，４０２ａが慣性力により弁座４０１ｃ，４０２ｃに着座して、何れの場合も燃料通路が遮断される。こうしてチェックボールが弁座に一旦着座すると、その着座状態は、燃料供給通路１５３側の燃料圧力により保持される。したがって、車両が大きく傾斜した場合には燃料噴出が阻止される。   On the other hand, when the vehicle greatly leans to the left or right (> θref), the check ball 401a, the first standby pipe 401b or the second standby pipe 402b rolls over substantially horizontally. 402a is seated on the valve seats 401c and 402c by the inertial force, and in either case, the fuel passage is blocked. Thus, once the check ball is seated on the valve seat, the seated state is maintained by the fuel pressure on the fuel supply passage 153 side. Therefore, when the vehicle is greatly inclined, fuel ejection is prevented.

本発明に係るリリーフ式調圧バルブを適用した燃料ポンプユニットが搭載された自動二輪車の燃料系統の配置構造を示した部分断面図である。1 is a partial cross-sectional view showing an arrangement structure of a fuel system of a motorcycle equipped with a fuel pump unit to which a relief type pressure regulating valve according to the present invention is applied. 本発明に係るリリーフ式調圧バルブを採用した燃料ポンプユニットの断面図である。It is sectional drawing of the fuel pump unit which employ | adopted the relief type pressure regulation valve which concerns on this invention. 図２のＡ−Ａ線に沿ったバルブボディの断面図である。It is sectional drawing of the valve body along the AA line of FIG. 傾斜時燃料カットバルブによる燃料カット機能を模式的に示した図である。It is the figure which showed typically the fuel cut function by the fuel cut valve at the time of inclination.

符号の説明Explanation of symbols

１…フィルターユニット、２…ポンプボディ、３…モータユニット、４…バルブボディ、１０１…燃料戻し口、１０２…燃料入口、１０３…フィルタ、１０４…フィルタ室、２０４…インペラ、２０５…制御回路基板、３１２…燃料フィード配管、３１３…燃料リターン配管、４００…インジェクタ、４０１，４０２…傾斜時燃料カットバルブ、４０３…リリーフ式調圧バルブ、４０４…残圧保持用チェックバルブ、４０５…インジェクタホルダ、４３０…弁座、４３１…流体通路、４３２…座面、４３３…弁体、４３４…支持部材、４３５…スプリング、４３６…突き当て棒   DESCRIPTION OF SYMBOLS 1 ... Filter unit, 2 ... Pump body, 3 ... Motor unit, 4 ... Valve body, 101 ... Fuel return port, 102 ... Fuel inlet, 103 ... Filter, 104 ... Filter chamber, 204 ... Impeller, 205 ... Control circuit board, 312 ... Fuel feed piping, 313 ... Fuel return piping, 400 ... Injector, 401, 402 ... Fuel cut valve during tilting, 403 ... Relief type pressure regulating valve, 404 ... Check valve for maintaining residual pressure, 405 ... Injector holder, 430 ... Valve seat, 431 ... Fluid passage, 432 ... Seat surface, 433 ... Valve body, 434 ... Support member, 435 ... Spring, 436 ... Butting rod

Claims (2)

流体通路の周方向に形成された環状の座面を有する弁座およびその弁体と、前記弁体を閉弁方向に付勢するスプリングとを備えたリリーフ式調圧バルブにおいて、
前記閉弁位置まで付勢された弁体と当接して、当該弁体の弁座への当接力を制限する突き当て部材を含み、
前記突き当て部材は、流体通路と同芯状の棒状体であり、その先端に弁体が突き当たって、当該弁体の弁座への当接力を制限することを特徴とするリリーフ式調圧バルブ。 In a relief type pressure regulating valve comprising a valve seat having an annular seat surface formed in the circumferential direction of a fluid passage and its valve body, and a spring for biasing the valve body in a valve closing direction,
In contact with the energized valve body to the closed position, seen including the abutment member to limit the contact force of the valve seat of the valve body,
The abutting member is a rod-shaped body that is concentric with the fluid passage, and the valve body abuts on the tip of the abutting member to restrict the contact force of the valve body to the valve seat. . 前記座面の径が流体通路の径よりも大きいことを特徴とする請求項１に記載のリリーフ式調圧バルブ。   The relief type pressure regulating valve according to claim 1, wherein a diameter of the seating surface is larger than a diameter of the fluid passage.
JP2003403093A 2003-12-02 2003-12-02 Relief type pressure regulating valve Expired - Fee Related JP4144750B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2003403093A JP4144750B2 (en) 2003-12-02 2003-12-02 Relief type pressure regulating valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003403093A JP4144750B2 (en) 2003-12-02 2003-12-02 Relief type pressure regulating valve

Publications (2)

Publication Number Publication Date
JP2005163615A JP2005163615A (en) 2005-06-23
JP4144750B2 true JP4144750B2 (en) 2008-09-03

Family

ID=34726502

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003403093A Expired - Fee Related JP4144750B2 (en) 2003-12-02 2003-12-02 Relief type pressure regulating valve

Country Status (1)

Country Link
JP (1) JP4144750B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115468023B (en) * 2022-10-26 2024-08-20 志泰科技集团有限公司 Valve with pressure regulating device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018177Y1 (en) * 1970-05-19 1975-06-04
JP2714841B2 (en) * 1989-01-26 1998-02-16 ヤマハ発動機株式会社 Variable pressure device for high pressure fuel injector
JPH0320770U (en) * 1989-07-10 1991-02-28
JPH0552251U (en) * 1991-12-16 1993-07-13 三菱電機株式会社 Exhaust gas recirculation control valve device
JP2990918B2 (en) * 1992-02-14 1999-12-13 株式会社デンソー Fuel injection valve
JP2593214Y2 (en) * 1992-09-14 1999-04-05 株式会社キッツ Ball valve with built-in check valve
US5700213A (en) * 1995-08-18 1997-12-23 Borg-Warner Automotive, Inc. Integral inlet and pressure relief valve for an automotive tensioner
JP3326743B2 (en) * 2000-01-21 2002-09-24 本田技研工業株式会社 Exhaust flow control valve
JP3940988B2 (en) * 2001-12-14 2007-07-04 ボッシュ株式会社 Pressure relief valve
JP3980906B2 (en) * 2002-02-28 2007-09-26 本田技研工業株式会社 Vehicle fuel pump module

Also Published As

Publication number Publication date
JP2005163615A (en) 2005-06-23

Similar Documents

Publication Publication Date Title
EP0777168B1 (en) A CNG regulator
JP2501083B2 (en) Fuel pump manifold
US4519473A (en) Cooling system for a motorcycle
JPH07109179B2 (en) Fuel supply system for internal combustion engine and fuel supply unit
JP2008128150A (en) Ejector and negative pressure supply device for brake booster using the same
EP2573353B1 (en) Saddle type vehicle
JP2004100622A (en) Evaporated fuel processing device
JP4144750B2 (en) Relief type pressure regulating valve
US6698870B2 (en) Ball check valve for bulk ink supply system
US6792918B1 (en) Vacuum relief modular reservoir assembly
JP6320947B2 (en) Evaporative fuel processing equipment
JP2010048161A (en) Fuel supply device
US20030213527A1 (en) Evaporated-fuel storage system
JP6983728B2 (en) Fluid control valve and evaporative fuel treatment equipment
CN100398806C (en) Tilt induction type fuel stop valve and fuel pump
JP4941324B2 (en) Fuel pressure regulator and fuel supply device using the same
JP4169200B2 (en) Fuel pump unit
JP4348235B2 (en) Fuel cut valve
JP3669677B2 (en) Fuel tank
JP2003247470A (en) Motor type fuel pump for vehicle
JP3811481B2 (en) Fuel cock mounting structure for motorcycles
JP5180686B2 (en) Fuel injection device for backbone type motorcycle
JP5198360B2 (en) Evaporative fuel processing equipment
JP2005180271A (en) Fuel strainer device
JP2005147008A (en) Fuel pump unit

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20051201

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080131

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080220

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080409

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: 20080611

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: 20080612

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

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

Free format text: PAYMENT UNTIL: 20110627

Year of fee payment: 3

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

Free format text: PAYMENT UNTIL: 20110627

Year of fee payment: 3

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

Free format text: PAYMENT UNTIL: 20130627

Year of fee payment: 5

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

Free format text: PAYMENT UNTIL: 20130627

Year of fee payment: 5

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

Free format text: PAYMENT UNTIL: 20140627

Year of fee payment: 6

LAPS Cancellation because of no payment of annual fees