JPH0243462U - - Google Patents
Info
- Publication number
- JPH0243462U JPH0243462U JP12165088U JP12165088U JPH0243462U JP H0243462 U JPH0243462 U JP H0243462U JP 12165088 U JP12165088 U JP 12165088U JP 12165088 U JP12165088 U JP 12165088U JP H0243462 U JPH0243462 U JP H0243462U
- Authority
- JP
- Japan
- Prior art keywords
- equal pressure
- pressure valve
- valve
- fuel
- injection pump
- 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.)
- Granted
Links
- 239000000446 fuel Substances 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 9
- 239000007924 injection Substances 0.000 claims description 9
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１図は本考案の一実施例による燃料噴射ポン
プの等圧弁装置の要部の拡大縦断面図、第２図は
同、噴射ノズル側の圧力の時間変化を示すグラフ
、第３図は従来の等圧弁装置の縦断面図、第４図
は同、噴射ノズル側の圧力の時間変化を示すグラ
フである。
１……燃料噴射ポンプ、２……デリバリバルブ
ホルダ、３……燃料出口、４……噴射管、５……
噴射ノズル、６……燃料噴射ポンプ本体、７……
燃料圧室、８……デリバリバルブシート、９……
デリバリバルブ、１０……デリバリバルブ９のロ
ツド部、１１……デリバリバルブ９のシート部、
１２……デリバリバルブ９の円筒部、１３……羽
根部、１４……燃料吐出用通路、１５……スプリ
ングストツパ、１６……デリバリバルブセツトス
プリング、１７……シート面、１８……等圧弁、
１９……等圧弁収納室、２０……燃料戻し用通路
、２１……ボールバルブ（等圧弁１８の弁体）、
２２……等圧弁シート、２３……スプリングシー
ト、２４……等圧弁セツトスプリング、２５……
オリフイス、２６……等圧弁シート２２のスカー
ト部、２７……連通孔、２８……調整用シム、３
０……燃料噴射ポンプ、３１……等圧弁、３２…
…オリフイス、３３……燃料通路、Ｔ……スカー
ト部２６の厚み。
Fig. 1 is an enlarged longitudinal cross-sectional view of the essential parts of an equal pressure valve device for a fuel injection pump according to an embodiment of the present invention, Fig. 2 is a graph showing the change in pressure on the injection nozzle side over time, and Fig. 3 is a conventional FIG. 4 is a vertical cross-sectional view of the equal pressure valve device shown in FIG. 1...Fuel injection pump, 2...Delivery valve holder, 3...Fuel outlet, 4...Injection pipe, 5...
Injection nozzle, 6...Fuel injection pump body, 7...
Fuel pressure chamber, 8...Delivery valve seat, 9...
Delivery valve, 10... Rod portion of the delivery valve 9, 11... Seat portion of the delivery valve 9,
12... Cylindrical part of delivery valve 9, 13... Vane part, 14... Fuel discharge passage, 15... Spring stopper, 16... Delivery valve set spring, 17... Seat surface, 18... Equal pressure valve ,
19... Equal pressure valve storage chamber, 20... Fuel return passage, 21... Ball valve (valve body of equal pressure valve 18),
22... Equal pressure valve seat, 23... Spring seat, 24... Equal pressure valve set spring, 25...
Orifice, 26... Skirt portion of equal pressure valve seat 22, 27... Communication hole, 28... Adjustment shim, 3
0... Fuel injection pump, 31... Equal pressure valve, 32...
...Orifice, 33...Fuel passage, T...Thickness of skirt portion 26.
Claims (1)
バルブに設ける等圧弁装置であつて、 前記デリバリバルブに、等圧弁を収納用の等圧
弁収納室を形成する円筒部を設けるとともに、前
記等圧弁の弁体およびこの弁体を付勢する等圧弁
セツトスプリングをこの等圧弁収納室の内方に位
置させ、さらに前記弁体に対してポンプ室側に燃
料戻し用通路に連通するオリフイスを形成したこ
とを特徴とする燃料噴射ポンプの等圧弁装置。[Scope of Claim for Utility Model Registration] An equal pressure valve device provided in a delivery valve that opens and closes a fuel outlet of a fuel injection pump, wherein the delivery valve is provided with a cylindrical portion forming an equal pressure valve storage chamber for storing the equal pressure valve. At the same time, a valve element of the equal pressure valve and an equal pressure valve set spring that biases the valve element are located inside the equal pressure valve storage chamber, and further communicated with a fuel return passage on the pump chamber side with respect to the valve element. An equal pressure valve device for a fuel injection pump, characterized in that it has an orifice formed therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988121650U JP2511190Y2 (en) | 1988-09-19 | 1988-09-19 | Fuel injection pump equal pressure valve device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988121650U JP2511190Y2 (en) | 1988-09-19 | 1988-09-19 | Fuel injection pump equal pressure valve device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0243462U true JPH0243462U (en) | 1990-03-26 |
| JP2511190Y2 JP2511190Y2 (en) | 1996-09-18 |
Family
ID=31368851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988121650U Expired - Lifetime JP2511190Y2 (en) | 1988-09-19 | 1988-09-19 | Fuel injection pump equal pressure valve device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2511190Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03182679A (en) * | 1989-12-11 | 1991-08-08 | Nippondenso Co Ltd | Pressure regulating valve for fuel injection pump |
| JPH04237868A (en) * | 1991-01-21 | 1992-08-26 | Nippondenso Co Ltd | Pressure valve for fuel injection pump |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5927149U (en) * | 1982-08-11 | 1984-02-20 | 株式会社ボッシュオートモーティブ システム | fuel injection pump |
| JPS61123872U (en) * | 1985-01-23 | 1986-08-04 |
-
1988
- 1988-09-19 JP JP1988121650U patent/JP2511190Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5927149U (en) * | 1982-08-11 | 1984-02-20 | 株式会社ボッシュオートモーティブ システム | fuel injection pump |
| JPS61123872U (en) * | 1985-01-23 | 1986-08-04 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03182679A (en) * | 1989-12-11 | 1991-08-08 | Nippondenso Co Ltd | Pressure regulating valve for fuel injection pump |
| JPH04237868A (en) * | 1991-01-21 | 1992-08-26 | Nippondenso Co Ltd | Pressure valve for fuel injection pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2511190Y2 (en) | 1996-09-18 |