JPS6254263U

JPS6254263U -

Info

Publication number: JPS6254263U
Application number: JP14519385U
Authority: JP
Priority date: 1985-09-25
Filing date: 1985-09-25
Publication date: 1987-04-03

Description

[Brief explanation of drawings]

第１図は本考案に係わる加速ポンプ装置の一実
施例断面図、第２図は従来の加速ポンプ装置の断
面図、第３図は加速燃料の吐出特性図である。１０……機械式加速ポンプ、１４……ポンプ室
、１６……吸気通路、１８……ポンプノズル、２
０……燃料通路、２２……インレツトチエツクバ
ルブ、２４……アウトレツトチエツクバルブ、３
２……リンク機構、３４……補助燃料加速ポンプ
、３８……負圧室、４０……ポンプ室、４２……
補助燃料用通路、４８……感温作動バルブ、５０
……ポンプノズル。 FIG. 1 is a sectional view of an embodiment of an acceleration pump device according to the present invention, FIG. 2 is a sectional view of a conventional acceleration pump device, and FIG. 3 is a discharge characteristic diagram of acceleration fuel. 10... Mechanical acceleration pump, 14... Pump chamber, 16... Intake passage, 18... Pump nozzle, 2
0... Fuel passage, 22... Inlet check valve, 24... Outlet check valve, 3
2...Link mechanism, 34...Auxiliary fuel acceleration pump, 38...Negative pressure chamber, 40...Pump chamber, 42...
Auxiliary fuel passage, 48...temperature-sensitive actuation valve, 50
...Pump nozzle.

Claims

[Scope of utility model registration request]

a mechanical acceleration pump having a pump chamber, a fuel passage extending from the float chamber through the pump chamber to the intake passage, and a pump driving means for discharging the fuel in the pump chamber to the intake passage in conjunction with an accelerator operation; an auxiliary pump chamber, an auxiliary fuel passage extending from the float chamber through the auxiliary pump chamber to the intake passage; a negative pressure operating means for pressurizing the pump chamber by negative pressure fluctuations to discharge fuel in the pump chamber; An acceleration pump device comprising an auxiliary fuel accelerator pump having a temperature opening/closing valve that introduces and shuts off negative pressure to the pressure operating means according to temperature, the fuel discharging portion to the intake passage of the mechanical acceleration pump and the auxiliary fuel An acceleration pump device characterized in that a fuel discharge section to an intake passage of an acceleration pump is provided independently.