JPS62122161U

JPS62122161U -

Info

Publication number: JPS62122161U
Application number: JP1056786U
Authority: JP
Priority date: 1986-01-28
Filing date: 1986-01-28
Publication date: 1987-08-03

Description

[Brief explanation of the drawing]

第１図はこの考案の実施例の全体縦断面図、第
２図は第１図の燃料流量調整弁の詳細図、第３図
は燃料流量調整弁の作用説明図、第４図はエンジ
ン操作の時間経過と燃料量の関係を示す説明図、
第５図は従来例の全体縦断面図である。３…ベーパライザ、５…一次減圧室、６…二次
減圧弁、７…二次減圧室、８…主燃料通路、９…
キヤブレタ、１０…ベンチユリ部、１１…ノズル
、１３…緩速燃料供給弁、１４…緩速燃料通路、
３１…燃料流量調整弁、３２…弁本体、３３…ダ
イアフラム装置、４２…切換装置、４３…エンジ
ン冷却水通路、４４…感温体。 Fig. 1 is an overall longitudinal cross-sectional view of an embodiment of this invention, Fig. 2 is a detailed view of the fuel flow regulating valve shown in Fig. 1, Fig. 3 is an explanatory diagram of the operation of the fuel flow regulating valve, and Fig. 4 is an engine operation. An explanatory diagram showing the relationship between the time elapsed and the amount of fuel;
FIG. 5 is an overall vertical sectional view of a conventional example. 3... Vaporizer, 5... Primary pressure reducing chamber, 6... Secondary pressure reducing valve, 7... Secondary pressure reducing chamber, 8... Main fuel passage, 9...
carburetor, 10... bench lily part, 11... nozzle, 13... slow speed fuel supply valve, 14... slow speed fuel passage,
31...Fuel flow rate adjustment valve, 32...Valve body, 33...Diaphragm device, 42...Switching device, 43...Engine cooling water passage, 44...Temperature sensing element.

Claims

[Scope of utility model registration request]

a vaporizer that vaporizes liquefied fuel in a primary pressure reduction chamber, and further lowers the pressure of the gaseous fuel in the primary pressure reduction chamber in a secondary pressure reduction chamber via a secondary pressure reduction valve operated by a ventilator negative pressure; and the gas supplied from the vaporizer. A carburetor that mixes fuel and intake air and supplies it to the internal combustion engine, a main fuel passage that communicates the secondary decompression chamber with a vent lily opening of the carburetor, and an area of the main fuel passage that is provided in the carburetor. , a slow fuel supply valve provided in the primary pressure reduction chamber and operated by negative pressure in the intake pipe, and communicating between the slow fuel supply valve and an upstream side of the fuel flow regulation valve. The fuel supply device includes a slow fuel passage, and the fuel flow regulating valve is composed of a valve body that controls the main fuel passage area and a diaphragm device that moves the valve body forward and backward by negative pressure in the intake pipe, and Fuel for an LP gas internal combustion engine, characterized in that the switching device is operated by a temperature sensing element attached to an engine cooling water passage and selectively introduces intake pipe negative pressure and atmospheric pressure into the diaphragm device. Feeding device.