JPS63154763U - - Google Patents
Info
- Publication number
- JPS63154763U JPS63154763U JP4735787U JP4735787U JPS63154763U JP S63154763 U JPS63154763 U JP S63154763U JP 4735787 U JP4735787 U JP 4735787U JP 4735787 U JP4735787 U JP 4735787U JP S63154763 U JPS63154763 U JP S63154763U
- Authority
- JP
- Japan
- Prior art keywords
- pulsating
- pump
- fuel injection
- pressure
- 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.)
- Pending
Links
- 239000000446 fuel Substances 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000000295 fuel oil Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 239000012528 membrane Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Description
第１〜３図は本考案の実施例としての脈動ポン
プ型ダンパー付き燃料噴射装置を示すもので、第
１図はその系統図、第２図はその脈動ポンプの断
面図、第３図はその脈動ポンプの変形例を示す断
面図であり、第４図は従来のダンパー付き燃料噴
射装置の系統図、第５図は燃料噴射ポンプ圧力の
計測例を示すグラフである。
１……定行程型燃料噴射ポンプ、２……タペツ
ト機構、３……カム、４……燃料油供給ポンプ、
５……給油管、６……脈動ポンプ吐出管、７……
脈動ポンプ吸入管、１０……ダンパーとしての脈
動ポンプ、１１……本体ケーシング、１２……ピ
ストン、１３……ダンパースプリング、１４……
弁本体、１５……吸入弁、１６……戻しバネ、１
７……吸入管継手、１８……吐出弁、１９……戻
しバネ、２０……吐出管継手、２１……シール材
、２２……ポンプ室、２７……膜弁。
Figures 1 to 3 show a pulsating pump type fuel injection device with a damper as an embodiment of the present invention. Figure 1 is its system diagram, Figure 2 is a sectional view of the pulsating pump, and Figure 3 is its system diagram. FIG. 4 is a system diagram of a conventional fuel injection device with a damper, and FIG. 5 is a graph showing an example of measuring the pressure of the fuel injection pump. 1... Fixed stroke fuel injection pump, 2... Tappet mechanism, 3... Cam, 4... Fuel oil supply pump,
5... Oil supply pipe, 6... Pulsating pump discharge pipe, 7...
Pulsating pump suction pipe, 10... Pulsating pump as a damper, 11... Body casing, 12... Piston, 13... Damper spring, 14...
Valve body, 15... Suction valve, 16... Return spring, 1
7...Suction pipe joint, 18...Discharge valve, 19...Return spring, 20...Discharge pipe joint, 21...Sealing material, 22...Pump chamber, 27...Membrane valve.
Claims (1)
燃料噴射ポンプをそなえ、同燃料噴射ポンプの燃
料噴射量調節に伴う上記給油管内の脈動圧を吸収
すべく、同給油管に接続されたダンパーとしての
脈動ポンプが設けられて、同脈動ポンプが、上記
脈動圧を受ける受圧部材と、上記脈動圧の高圧時
に上記受圧部材の押圧駆動に伴つて開く吐出弁と
、上記脈動圧の低圧時に上記受圧部材の吸引駆動
に伴つて開く吸入弁とをそなえて構成されたこと
を特徴とする、脈動ポンプ型ダンパー付き燃料噴
射装置。 A fuel injection pump is connected to the fuel oil supply pump via a fuel supply pipe, and the damper is connected to the fuel supply pipe in order to absorb the pulsating pressure in the fuel supply pipe caused by the adjustment of the fuel injection amount of the fuel injection pump. A pulsating pump is provided, and the pulsating pump includes a pressure receiving member that receives the pulsating pressure, a discharge valve that opens when the pulsating pressure is high as the pressure receiving member is pressed, and a discharge valve that opens when the pulsating pressure is low. 1. A fuel injection device with a pulsating pump type damper, comprising a suction valve that opens when a member is suction driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4735787U JPS63154763U (en) | 1987-03-30 | 1987-03-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4735787U JPS63154763U (en) | 1987-03-30 | 1987-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63154763U true JPS63154763U (en) | 1988-10-11 |
Family
ID=30867888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4735787U Pending JPS63154763U (en) | 1987-03-30 | 1987-03-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63154763U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014148981A (en) * | 1999-02-09 | 2014-08-21 | Hitachi Automotive Systems Ltd | High pressure fuel supply pump of internal combustion engine |
-
1987
- 1987-03-30 JP JP4735787U patent/JPS63154763U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014148981A (en) * | 1999-02-09 | 2014-08-21 | Hitachi Automotive Systems Ltd | High pressure fuel supply pump of internal combustion engine |