JPH01114977U - - Google Patents
Info
- Publication number
- JPH01114977U JPH01114977U JP891888U JP891888U JPH01114977U JP H01114977 U JPH01114977 U JP H01114977U JP 891888 U JP891888 U JP 891888U JP 891888 U JP891888 U JP 891888U JP H01114977 U JPH01114977 U JP H01114977U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- equal
- isobaric
- pressure valve
- fuel
- 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 10
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
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
プの等圧弁装置の縦断面図、第２図は同、圧力変
動およびストローク変動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……
分配通路、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、１２Ａ……
スプリングシート段部、１２Ｂ……吸戻し用のス
トツパー段部、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、２２……可動等圧弁シート、２２Ａ……吸戻
し用段部、２３……スプリングシート、２４……
等圧弁セツトスプリング、２５……上蓋、２６…
…緩衝用スプリング、２７，２８……オリフイス
、Ｓ……吸戻し用ストローク。
FIG. 1 is a longitudinal sectional view of an equal pressure valve device for a fuel injection pump according to an embodiment of the present invention, and FIG. 2 is a graph showing pressure fluctuations and stroke fluctuations in the same embodiment. 1...Fuel injection pump, 2...Delivery valve holder, 3...Fuel outlet, 4...Injection pipe, 5...
Injection nozzle, 6...Fuel injection pump body, 7...
Distribution passage, 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, 12A...
Spring seat stepped portion, 12B... Stopper step for suction back, 13... Vane portion, 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, 22... Movable equal pressure valve seat, 22A... ...Suck-back step, 23...Spring seat, 24...
Equal pressure valve set spring, 25...Top lid, 26...
...Buffer spring, 27, 28...Orifice, S...Suck-back stroke.
Claims (1)
バルブに設ける等圧弁装置であつて、 前記等圧弁装置内の弁体がシートする等圧弁シ
ートを燃料の吐出方向および吸戻し方向に可動と
するとともに、前記等圧弁シートに緩衝用スプリ
ングを設け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 isobaric valve device provided in a delivery valve for opening and closing a fuel outlet of a fuel injection pump, wherein an isobaric valve seat on which a valve body in the isobaric device is seated is controlled in the direction of fuel discharge and suction. 1. An equal-pressure valve device for a fuel injection pump, characterized in that the equal-pressure valve device is movable in a direction, and a buffer spring is provided on the equal-pressure valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP891888U JPH0426692Y2 (en) | 1988-01-28 | 1988-01-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP891888U JPH0426692Y2 (en) | 1988-01-28 | 1988-01-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01114977U true JPH01114977U (en) | 1989-08-02 |
| JPH0426692Y2 JPH0426692Y2 (en) | 1992-06-26 |
Family
ID=31215205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP891888U Expired JPH0426692Y2 (en) | 1988-01-28 | 1988-01-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0426692Y2 (en) |
-
1988
- 1988-01-28 JP JP891888U patent/JPH0426692Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0426692Y2 (en) | 1992-06-26 |