JPS61107956U

JPS61107956U -

Info

Publication number: JPS61107956U
Application number: JP19286584U
Authority: JP
Priority date: 1984-12-21
Filing date: 1984-12-21
Publication date: 1986-07-09

Description

[Brief explanation of the drawing]

第１図はこの考案のＬＰＧエンジンの燃料供給
装置を説明するための略図で、第２図は空燃比と
の関係を示す線図である。図面における符号は次のとおりである。１０…
…ＬＰＧ燃料容器、１２……導管、１４……ベー
パーライザ、１６……１４の１次室、１８……１
４の２次室、２０……ウオーター・ジヤケツト、
２２……導管、２４……ＬＰＧ混合器、２８……
メイン・アジヤスト・スクリユー、３０……開口
、３２……ベンチユリ部、３４……絞り弁、３６
……１６のダイアフラム、３８……１６の弁、４
０……開口、４２……１８のダイアフラム、４４
……弁、５０……バイパス開口、５２……バイパ
ス導管、５４……開口、５６……調節弁装置、５
８……コンピユータ・コントロール・ユニツト、
６０……絞り弁開度センサ、６０……ブースト・
センサ。 FIG. 1 is a schematic diagram for explaining the fuel supply system for an LPG engine of this invention, and FIG. 2 is a diagram showing the relationship with the air-fuel ratio. The symbols in the drawings are as follows. 10...
... LPG fuel container, 12 ... conduit, 14 ... vapor riser, 16 ... 14 primary chamber, 18 ... 1
4 secondary room, 20...water jacket,
22... Conduit, 24... LPG mixer, 28...
Main adjustment screw, 30... Opening, 32... Bench lily portion, 34... Throttle valve, 36
...16 diaphragms, 38...16 valves, 4
0...Aperture, 42...18 diaphragm, 44
... Valve, 50 ... Bypass opening, 52 ... Bypass conduit, 54 ... Opening, 56 ... Control valve device, 5
8...computer control unit,
60... Throttle valve opening sensor, 60... Boost
sensor.

Claims

[Claims for Utility Model Registration] 1. A vapor riser consisting of a primary chamber and a secondary chamber for vaporizing liquid-phase LPG fuel, and a vent lily and a throttle for mixing the gas-phase LPG fuel with air and sending it to the engine. a conduit for supplying gaseous LPG liquid from the secondary chamber to the mixer via a preset main adjusting screw attached to the mixer; An LPG engine fuel supply system comprising: a bypass opening provided between the bench lily portion of the mixer and the throttle valve; a bypass conduit connecting the primary chamber and the bypass opening; and a bypass conduit provided in the bypass conduit and connected to the bypass opening. An electrically actuated control valve device that controls the flow of fuel flowing through the conduit; a throttle valve opening sensor that is connected to the throttle valve and senses its opening; and a boost valve that senses the intake negative pressure of the mixer. a computer control unit that is electrically connected to the control valve device, the throttle valve opening sensor, and the boost sensor and controls the operation of the control valve device based on input signals from both the sensors; A fuel supply system for an LPG engine consisting of. 2. The fuel supply device for an LPG engine according to claim 1, wherein the electrically operated control valve device is a duty solenoid valve. 3. The fuel supply system for an LPG engine according to claim 1, wherein the electrically operated control valve device is a step motor operated valve device.