JPS58124659U - Negative pressure driven fuel pump - Google Patents
Negative pressure driven fuel pumpInfo
- Publication number
- JPS58124659U JPS58124659U JP2298982U JP2298982U JPS58124659U JP S58124659 U JPS58124659 U JP S58124659U JP 2298982 U JP2298982 U JP 2298982U JP 2298982 U JP2298982 U JP 2298982U JP S58124659 U JPS58124659 U JP S58124659U
- Authority
- JP
- Japan
- Prior art keywords
- negative pressure
- fuel pump
- valve
- driven fuel
- diaphragm
- 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
Landscapes
- 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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
添付図面はこの考案め実施例を示す縦断側面図である。
２・・・・・・ダイヤフラム、３・・・・・・受圧室、
４・・・・・・ポンプ室、５・・・・・・チェックバル
ブ、６・・・・・・燃料導入 。
管、７・・・・・・チェックバルブ、８・・・・・・燃
料吐出管、９・・・・・・インテークマニホルド、１０
・・・・・・負圧導入路、１１・・・・・・負圧導入管
、１２・・・・・・弁座、１３・・・・・・リークジ上
ット、１８・・・・・・リターンスプリング、１９・・
・・・・開閉弁、２０・・・・・・コイルスプリング、
２１・・・・・・サージタンク、２３・・・・・・調圧
バルブ。The accompanying drawing is a longitudinal sectional side view of this devised embodiment. 2...Diaphragm, 3...Pressure receiving chamber,
4...Pump chamber, 5...Check valve, 6...Fuel introduction. Pipe, 7... Check valve, 8... Fuel discharge pipe, 9... Intake manifold, 10
... Negative pressure introduction path, 11 ... Negative pressure introduction pipe, 12 ... Valve seat, 13 ... Leakage top, 18 ...・Return spring, 19・・
...Opening/closing valve, 20...Coil spring,
21... Surge tank, 23... Pressure regulating valve.
Claims (1)
４と、ポンプ室４に設けられた燃料導入用チェックバル
ブ５及び燃料吐出用チェックバルブ７と、受圧室３内に
インテークマニホルド負圧を導入し、開閉弁１９で開閉
される弁座部１２と、ダイヤフラム２の上動で前記弁座
部１２を閉塞すると共に、ダイヤフラム２の下動て弁座
部１２から開放される開閉弁１９と、受圧室３内に設け
られた大気リークジェット１３とから成る負圧駆動式燃
料ポンプに於て；インテークマニホルド負圧を導入する
路１０の途中、 にサージタンク２１を設け、該サー
ジタンク２１の入口に調圧ノ々ルブ２３を配したことを
特徴とする負圧駆動式燃料ポンプ。 ■ 実用新案登録請求の範囲第１項記載の考案に於て、
上記サージタンク２１を機関あるいは車体の補強メンバ
ーの中空部分を利用して形成したことを特徴とする負圧
駆動式燃料ポンプ。[Scope of Claim for Utility Model Registration] ■ Pressure receiving chamber 3 and pump chamber 4 divided by diaphragm 2, fuel introduction check valve 5 and fuel discharge check valve 7 provided in pump chamber 4, and the inside of pressure receiving chamber 3. Intake manifold negative pressure is introduced into the intake manifold, the valve seat 12 is opened and closed by the on-off valve 19, the valve seat 12 is closed by the upward movement of the diaphragm 2, and the valve seat 12 is opened by the downward movement of the diaphragm 2. In a negative pressure driven fuel pump consisting of an on-off valve 19 and an atmospheric leak jet 13 provided in a pressure receiving chamber 3, a surge tank 21 is provided in the middle of a path 10 for introducing negative pressure into the intake manifold. , a negative pressure driven fuel pump characterized in that a pressure regulating knob 23 is disposed at the inlet of the surge tank 21. ■ Scope of Utility Model Registration Claims In the invention described in paragraph 1,
A negative pressure driven fuel pump characterized in that the surge tank 21 is formed by utilizing a hollow portion of a reinforcing member of an engine or a vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2298982U JPS58124659U (en) | 1982-02-19 | 1982-02-19 | Negative pressure driven fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2298982U JPS58124659U (en) | 1982-02-19 | 1982-02-19 | Negative pressure driven fuel pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58124659U true JPS58124659U (en) | 1983-08-24 |
Family
ID=30035046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2298982U Pending JPS58124659U (en) | 1982-02-19 | 1982-02-19 | Negative pressure driven fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58124659U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014025371A (en) * | 2012-07-25 | 2014-02-06 | Makita Corp | Engine |
| JP2014025370A (en) * | 2012-07-25 | 2014-02-06 | Makita Corp | Engine |
-
1982
- 1982-02-19 JP JP2298982U patent/JPS58124659U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014025371A (en) * | 2012-07-25 | 2014-02-06 | Makita Corp | Engine |
| JP2014025370A (en) * | 2012-07-25 | 2014-02-06 | Makita Corp | Engine |
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