JPH0256852U - - Google Patents
Info
- Publication number
- JPH0256852U JPH0256852U JP13600388U JP13600388U JPH0256852U JP H0256852 U JPH0256852 U JP H0256852U JP 13600388 U JP13600388 U JP 13600388U JP 13600388 U JP13600388 U JP 13600388U JP H0256852 U JPH0256852 U JP H0256852U
- Authority
- JP
- Japan
- Prior art keywords
- valve
- chamber
- casing
- vapor discharge
- 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 5
- 239000002828 fuel tank Substances 0.000 claims 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
第１図は本実施例に関わる燃料ポンプの要部断
面図、第２図及び第３図は従来技術による燃料ポ
ンプを示し、第２図は燃料ポンプの縦断面図、第
３図は第２図の一部拡大図である。
１……ケーシング、１１……ポンプ室、１２…
…モータ室、１４……タービン、１５……モータ
、１９……ベーパ排出ポート、３１……ベーパ排
出弁、３２……弁室、３３……弁体、３４……弁
座部材、３５……ばね部材、３４Ｅ……ばね受、
３４Ｄ……弁座部、Ｐ……異物。
FIG. 1 is a cross-sectional view of essential parts of a fuel pump according to this embodiment, FIGS. 2 and 3 are fuel pumps according to the prior art, FIG. 2 is a vertical cross-sectional view of the fuel pump, and FIG. It is a partially enlarged view of the figure. 1...Casing, 11...Pump chamber, 12...
... Motor chamber, 14 ... Turbine, 15 ... Motor, 19 ... Vapor discharge port, 31 ... Vapor discharge valve, 32 ... Valve chamber, 33 ... Valve body, 34 ... Valve seat member, 35 ... Spring member, 34E... Spring holder,
34D...Valve seat, P...Foreign object.
Claims (1)
ンプ室にはタービンが設けられ、該モータ室には
該タービンを回転駆動するモータが設けられたケ
ーシングと、前記ポンプ室を燃料タンクと連通さ
せるように該ケーシングに穿設されたベーパ排出
ポートと、該ベーパ排出ポートを開閉するように
該ケーシングに設けられたベーパ排出弁とを備え
、該ベーパ排出弁は前記ポンプ室内の燃料圧力が
所定圧以下のときにのみ開弁して、該ポンプ室内
のベーパを排出するようにした燃料ポンプにおい
て、前記ベーパ排出弁は前記ベーパ排出ポートに
連通するように前記ケーシングに形成された弁室
と、該弁室内に配設された弁体と、前記弁室の開
口側に位置して前記ケーシングに設けられ、窒記
弁室内に突出した環状突部の先端にばね受と該弁
体が離着座する弁座部とが形成された弁座部材と
、前記弁体と該弁座部材のばね受との間に張設さ
れ、常時は該弁体を該弁座部から離間するように
付勢するばね部材とから構成したことを特徴とす
る燃料ポンプ。 A casing having a pump chamber and a motor chamber formed therein, a turbine provided in the pump chamber, and a motor for rotationally driving the turbine provided in the motor chamber, and communicating the pump chamber with a fuel tank. A vapor discharge port is provided in the casing, and a vapor discharge valve is provided in the casing to open and close the vapor discharge port. In a fuel pump configured to open to discharge vapor in the pump chamber only when: the vapor discharge valve has a valve chamber formed in the casing so as to communicate with the vapor discharge port; A valve body disposed within the valve chamber, and a spring receiver and the valve body are seated and separated from each other at the tip of an annular protrusion located on the opening side of the valve chamber and provided in the casing and protruding into the valve chamber. A valve seat member formed with a valve seat portion is stretched between the valve body and a spring receiver of the valve seat member, and normally biases the valve body away from the valve seat portion. A fuel pump comprising a spring member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13600388U JPH0734225Y2 (en) | 1988-10-18 | 1988-10-18 | Fuel pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13600388U JPH0734225Y2 (en) | 1988-10-18 | 1988-10-18 | Fuel pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0256852U true JPH0256852U (en) | 1990-04-24 |
| JPH0734225Y2 JPH0734225Y2 (en) | 1995-08-02 |
Family
ID=31396111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13600388U Expired - Lifetime JPH0734225Y2 (en) | 1988-10-18 | 1988-10-18 | Fuel pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0734225Y2 (en) |
-
1988
- 1988-10-18 JP JP13600388U patent/JPH0734225Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0734225Y2 (en) | 1995-08-02 |