JPH0285867U - - Google Patents
Info
- Publication number
- JPH0285867U JPH0285867U JP16618188U JP16618188U JPH0285867U JP H0285867 U JPH0285867 U JP H0285867U JP 16618188 U JP16618188 U JP 16618188U JP 16618188 U JP16618188 U JP 16618188U JP H0285867 U JPH0285867 U JP H0285867U
- Authority
- JP
- Japan
- Prior art keywords
- return
- oil
- suction
- piping connection
- relief port
- 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 6
- 230000007423 decrease Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Landscapes
- Check Valves (AREA)
- Jet Pumps And Other Pumps (AREA)
Description
第１図および第２図は本考案の実施例を示し、
第１図は燃料吸引ポンプを示す一部破断の正面図
、第２図は第１図中の―矢示方向から見た断
面図、第３図はないし第５図は従来技術に係り、
第３図は燃料噴射装置の全体構成図、第４図は第
３図中の燃料吸引ポンプを示す一部破断の正面図
、第５図は第４図中の―矢示方向から見た断
面図である。
１６……リターン配管、１９……リターン配管
接続部、２２……噴出ノズル部、２４……吸引管
接続部、２７……吸引部、３１……ベーパ逃し口
、３４……ベーパ逃し弁。
1 and 2 show an embodiment of the present invention,
Fig. 1 is a partially cutaway front view showing a fuel suction pump, Fig. 2 is a cross-sectional view seen from the - arrow direction in Fig. 1, and Figs. 3 to 5 relate to the prior art.
Fig. 3 is an overall configuration diagram of the fuel injection device, Fig. 4 is a partially cutaway front view showing the fuel suction pump in Fig. 3, and Fig. 5 is a cross section seen from the - arrow direction in Fig. 4. It is a diagram. 16...Return pipe, 19...Return pipe connection part, 22...Blowout nozzle part, 24...Suction pipe connection part, 27...Suction part, 31...Vapor relief port, 34...Vapor relief valve.
Claims (1)
れるリターン配管接続部と、該リターン配管接続
部に流入した戻り油の流速を速めて流出せしめる
噴出ノズル部と、吸引油が流入するように吸引管
と接続される吸引管接続部と、前記噴出ノズル部
から流出する戻り油によつて吸引油を吸引するよ
うに一側が該吸引管接続部と接続され、他側が前
記噴出ノズル部を囲む絞り流出口となつた吸引部
とからなる燃料吸引ポンプにおいて、前記リター
ン配管接続部の内周に穿設されたベーパ逃し口と
、一端が固定端となつて前記リターン配管接続部
内に固定され、他端が自由端となつて常時は前記
ベーパ逃し口を開放するリード状弁体として形成
されたベーパ逃し弁とを有し、該ペーパ逃し弁は
、戻り油の内圧が高いときは前記ベーパ逃し口を
閉塞し、ベーパ発生により内圧が低下したときは
前記ベーパ逃し口を開放する構成としたことを特
徴とする燃料吸引ポンプ。 A return piping connection part that is connected to the return piping so that the return oil can flow in, a jet nozzle part that accelerates the flow rate of the return oil that has flowed into the return piping connection part and causes it to flow out, and a suction pipe that allows the suction oil to flow into it. a suction pipe connection part connected to the jet nozzle part, and a throttle flow connected to the suction pipe joint part on one side and surrounding the jet nozzle part on the other side so as to suck suction oil by return oil flowing out from the jet nozzle part. In the fuel suction pump, the fuel suction pump includes a suction section which serves as an outlet, and a vapor relief port formed on the inner periphery of the return piping connection section, one end serving as a fixed end fixed within the return piping connection section, and the other end serving as a fixed end fixed within the return piping connection section. a vapor relief valve formed as a reed-like valve body whose free end normally opens the vapor relief port, and the paper relief valve closes the vapor relief port when the internal pressure of the return oil is high. 1. A fuel suction pump characterized in that the vapor relief port is configured to open when the vapor relief port is closed and the internal pressure decreases due to vapor generation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16618188U JPH0537012Y2 (en) | 1988-12-22 | 1988-12-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16618188U JPH0537012Y2 (en) | 1988-12-22 | 1988-12-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0285867U true JPH0285867U (en) | 1990-07-06 |
| JPH0537012Y2 JPH0537012Y2 (en) | 1993-09-20 |
Family
ID=31453339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16618188U Expired - Lifetime JPH0537012Y2 (en) | 1988-12-22 | 1988-12-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0537012Y2 (en) |
-
1988
- 1988-12-22 JP JP16618188U patent/JPH0537012Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0537012Y2 (en) | 1993-09-20 |
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