JPS58102770U - fluid injection device - Google Patents
fluid injection deviceInfo
- Publication number
- JPS58102770U JPS58102770U JP14269982U JP14269982U JPS58102770U JP S58102770 U JPS58102770 U JP S58102770U JP 14269982 U JP14269982 U JP 14269982U JP 14269982 U JP14269982 U JP 14269982U JP S58102770 U JPS58102770 U JP S58102770U
- Authority
- JP
- Japan
- Prior art keywords
- delivery valve
- high pressure
- opening
- valve
- compression spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/462—Delivery valves
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/30—Fuel-injection apparatus having mechanical parts, the movement of which is damped
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Reciprocating Pumps (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の好適実施例の断面図である。
第２図は第１図の線■−■から見た断面図である。
図に於いて、１０・・・ハウジング、１２・・・プラン
ジャ、１４・・・孔、１６・・・燃料入口通路、１８・
・・ポンプ圧力チャンバ、２０・・・アダプタ、２２・
・・送出し通路、２６・・・送出し弁、３０・・・案内
・停止部材、３２・・・バネ部材、５０・・・逆チェッ
ク弁、５６・・・バネ部材。FIG. 1 is a cross-sectional view of a preferred embodiment of the present invention. FIG. 2 is a sectional view taken along line 1--2 in FIG. In the figure, 10... Housing, 12... Plunger, 14... Hole, 16... Fuel inlet passage, 18...
...Pump pressure chamber, 20...Adapter, 22.
... Sending passage, 26... Sending valve, 30... Guide/stop member, 32... Spring member, 50... Reverse check valve, 56... Spring member.
Claims (1)
の孔内に往復運動可能に配置されて該孔内にポンプチャ
ンバを形成するプランジャを有するハウジング手段と、 該ポンプチャンバに連通している入口開口と、該ポンプ
チャンバと同軸的に配置され且つ該ポンプチャンバに連
通している高圧チャンバを形成する段状直径の同軸的に
配置された円筒状部分を有し、該円筒状部分と同軸的に
配置された高圧出口開口を含む第２の孔と、 該高圧チャンバ内に設置され該プランジャから離れて開
口している送出し弁であって、環状ディスク弁を具備し
、該ディスク弁が中央孔を有し、これにより該ディスク
を介して開口が形成され、該環状ディスクが該開口を取
り囲んでいる環状座を形成する手段を含む送出し弁と、 該高圧チャンバ内に設置されて該送出し弁を閉位置に強
制する第１の圧縮ばね手段と、 ゛該送出し弁の
動きを制限して、該弁の動きの時間を減少せしめ且つ該
第１の圧縮ばね手段の底付きを防ぐ停止手段と、 該送出し弁によって支持された第２の圧縮ばね手段を含
み、該送出し弁の該開口に設置され且つ該環状座に係合
する逆チェック弁を具備して、該開口を介する該高圧チ
ャンバの方への流体の流れを防ぎ、且つ所定の圧力にて
該高圧チャンバ及び出口から該ポンプチャンバへの流体
の逆流を妨害せず、該ポンプによって供給された非圧縮
可能流体の二次圧力を減少して該非圧縮可能流体のキャ
ビテーションを防ぐ減衰手段であって、該チェック弁が
ディスク要素の中央に接続され且つ該プランジャから離
れるように延びている細長いステムを含む減衰手段とを
具備し、 該第２の圧縮ばね手段が、該ステムと該送出し弁との間
に接続されていて、該通弁を閉位−に強制し、 そして更に、該送出し弁によって支持されて、該第２の
孔の１つの直径部分に係合して、該高圧 ′チャンバ内
にて該第１及び第２の孔の軸線方向に該送出し弁を案内
し且っ数段付き孔によって形成された肩に係合して該停
止手段を規定する案内手段を具備することを特徴とする
非圧縮可能流体噴射装置。[Claims for Utility Model Registration] A cylindrical first hole is formed inside, and the first hole is
housing means having a plunger reciprocably disposed within a bore of the bore forming a pump chamber therein; an inlet opening communicating with the pump chamber; and an inlet opening communicating with the pump chamber; a second bore having a coaxially disposed cylindrical portion of stepped diameter forming a high pressure chamber communicating with the pump chamber and including a high pressure outlet opening coaxially disposed with the cylindrical portion; , a delivery valve disposed within the high pressure chamber and opening away from the plunger, the delivery valve having an annular disc valve having a central aperture such that an opening is provided through the disc; a delivery valve including means forming an annular seat formed therein, with the annular disc surrounding the opening; and first compression spring means disposed within the high pressure chamber for forcing the delivery valve into a closed position. ``a stop means for restricting the movement of the delivery valve to reduce the time of movement of the valve and to prevent bottoming out of the first compression spring means; and a second compression spring means supported by the delivery valve. a compression spring means disposed in the opening of the delivery valve and engaging the annular seat to prevent fluid flow through the opening towards the high pressure chamber; and reduces the secondary pressure of the incompressible fluid supplied by the pump to prevent cavitation of the incompressible fluid without interfering with the backflow of fluid from the high pressure chamber and the outlet to the pump chamber at a predetermined pressure. damping means for preventing said check valve comprising an elongate stem connected to the center of said disc element and extending away from said plunger, said second compression spring means comprising and the delivery valve to force the delivery valve into a closed position, and further supported by the delivery valve to engage a diameter portion of the second hole. guiding the delivery valve in the high pressure chamber in the axial direction of the first and second holes and engaging a shoulder formed by the stepped holes to define the stop means; A non-compressible fluid ejecting device characterized by comprising a guide means for.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US39054073A | 1973-08-22 | 1973-08-22 | |
| US390540 | 1982-06-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58102770U true JPS58102770U (en) | 1983-07-13 |
Family
ID=23542880
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3745374A Pending JPS5045122A (en) | 1973-08-22 | 1974-04-04 | |
| JP14269982U Pending JPS58102770U (en) | 1973-08-22 | 1982-09-22 | fluid injection device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3745374A Pending JPS5045122A (en) | 1973-08-22 | 1974-04-04 |
Country Status (6)
| Country | Link |
|---|---|
| JP (2) | JPS5045122A (en) |
| BE (1) | BE819103A (en) |
| CA (1) | CA1002836A (en) |
| DE (1) | DE2439374A1 (en) |
| GB (1) | GB1474216A (en) |
| IT (1) | IT1018950B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0455254Y2 (en) * | 1988-01-18 | 1992-12-25 | ||
| JPH0729253Y2 (en) * | 1989-02-08 | 1995-07-05 | 株式会社ゼクセル | Fuel injector seal structure |
| DE3925056A1 (en) * | 1989-07-28 | 1991-01-31 | Bosch Gmbh Robert | FUEL INJECTION PUMP FOR INJECTION COMBUSTION ENGINES |
| JP4353288B2 (en) | 2007-08-08 | 2009-10-28 | トヨタ自動車株式会社 | Fuel pump |
-
1974
- 1974-04-04 JP JP3745374A patent/JPS5045122A/ja active Pending
- 1974-06-28 CA CA203,724A patent/CA1002836A/en not_active Expired
- 1974-08-13 IT IT5258474A patent/IT1018950B/en active
- 1974-08-14 DE DE19742439374 patent/DE2439374A1/en not_active Ceased
- 1974-08-19 GB GB3642674A patent/GB1474216A/en not_active Expired
- 1974-08-22 BE BE147833A patent/BE819103A/en not_active IP Right Cessation
-
1982
- 1982-09-22 JP JP14269982U patent/JPS58102770U/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB1474216A (en) | 1977-05-18 |
| CA1002836A (en) | 1977-01-04 |
| BE819103A (en) | 1975-02-24 |
| DE2439374A1 (en) | 1975-02-27 |
| IT1018950B (en) | 1977-10-20 |
| JPS5045122A (en) | 1975-04-23 |
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