JPH0188061U - - Google Patents
Info
- Publication number
- JPH0188061U JPH0188061U JP18567287U JP18567287U JPH0188061U JP H0188061 U JPH0188061 U JP H0188061U JP 18567287 U JP18567287 U JP 18567287U JP 18567287 U JP18567287 U JP 18567287U JP H0188061 U JPH0188061 U JP H0188061U
- Authority
- JP
- Japan
- Prior art keywords
- fuel
- injection pump
- switching valve
- fuel tank
- connects
- 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 9
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000002828 fuel tank Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Temperature-Responsive Valves (AREA)
Description
第１図は本考案に係るデイーゼルエンジンにお
ける燃料の循環システムを表わす回路図、第２図
は低温時における作動状態を表わす切り替えバル
ブ部分の拡大断面図、第３図は高温時における作
動状態を表わす同切り替えバルブ部分の拡大断面
図である。又、第４図は従来の燃料循環システム
を表わす回路図である。
１……燃料タンク、２……送油パイプ、３……
セジメンタ（水分離器）、４……燃料フイルタ、
５……噴射ポンプ、６……オーバーフロー口、７
……ガスケツト、８……切り替えバルブ、９……
バルブボデー、１０……流路、１１……空間部、
１２……シリンダ、１２Ａ……ワツクス室、１２
Ｂ……スプリング室、１３……スプール、１３Ａ
……大径部、１３Ｂ，１３Ｃ……ニードル部、１
４……ワツクス、１５……スリーブ、１６……ス
プリング、１７……通孔、１８……流路、１９…
…ユニオン、２０……バルブ室、２１……スプリ
ング、２２……チエツクボール、２３……オーバ
ーフローパイプ、２４……ガスケツト、２５……
小室、２６……流路、２７……通孔、２８……ユ
ニオン、２９……オーバーフローパイプ、３０…
…送油パイプ、３１……ノズル、３２……オーバ
ーフローパイプ、３３……ガスケツト、３４……
フユーエルカツトソレノイド。
Fig. 1 is a circuit diagram showing the fuel circulation system in a diesel engine according to the present invention, Fig. 2 is an enlarged sectional view of the switching valve section showing the operating state at low temperatures, and Fig. 3 shows the operating state at high temperatures. It is an enlarged sectional view of the same switching valve part. Further, FIG. 4 is a circuit diagram showing a conventional fuel circulation system. 1...Fuel tank, 2...Oil pipe, 3...
Sedimentor (water separator), 4...Fuel filter,
5... Injection pump, 6... Overflow port, 7
...Gasket, 8...Switching valve, 9...
Valve body, 10... flow path, 11... space part,
12...Cylinder, 12A...Wax chamber, 12
B...Spring chamber, 13...Spool, 13A
...Large diameter part, 13B, 13C...Needle part, 1
4... Wax, 15... Sleeve, 16... Spring, 17... Through hole, 18... Channel, 19...
... Union, 20 ... Valve chamber, 21 ... Spring, 22 ... Check ball, 23 ... Overflow pipe, 24 ... Gasket, 25 ...
Small chamber, 26...channel, 27...through hole, 28...union, 29...overflow pipe, 30...
...oil pipe, 31...nozzle, 32...overflow pipe, 33...gasket, 34...
Fuel cut solenoid.
Claims (1)
料タンクと噴射ポンプのオーバーフロー口間を夫
々連結し、同噴射ポンプの吐出口にはノズルを連
結させて成るデイーゼルエンジンにおける燃料の
循環システムであつて、上記オーバーフロー口に
切り替えバルブを設け、同切り替えバルブと燃料
タンク間、及び同切り替えバルブと噴射ポンプの
吸入口間を夫々連結すると共に、同切り替えバル
ブは燃料温度が低温時には噴射ポンプの吸入口側
へ、又、燃料温度が高温時には燃料タンク側へオ
ーバーフローした燃料を切り換えることが可能な
如く設けて成るデイーゼルエンジンにおける燃料
の循環システム。 A fuel circulation system for a diesel engine, which connects a fuel tank and an inlet of an injection pump, and connects the fuel tank and an overflow port of an injection pump, respectively, and connects a nozzle to a discharge port of the injection pump. A switching valve is provided at the overflow port, and the switching valve and the fuel tank are connected to each other, and the switching valve and the injection pump intake port are connected to each other, and the switching valve is connected to the injection pump intake side when the fuel temperature is low. Furthermore, a fuel circulation system in a diesel engine is provided so that when the fuel temperature is high, overflowing fuel can be transferred to the fuel tank side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18567287U JPH0188061U (en) | 1987-12-04 | 1987-12-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18567287U JPH0188061U (en) | 1987-12-04 | 1987-12-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0188061U true JPH0188061U (en) | 1989-06-09 |
Family
ID=31476946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18567287U Pending JPH0188061U (en) | 1987-12-04 | 1987-12-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0188061U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53126431A (en) * | 1977-04-07 | 1978-11-04 | Bosch Gmbh Robert | Fuel supplier |
-
1987
- 1987-12-04 JP JP18567287U patent/JPH0188061U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53126431A (en) * | 1977-04-07 | 1978-11-04 | Bosch Gmbh Robert | Fuel supplier |
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