JPH0454941U

JPH0454941U -

Info

Publication number: JPH0454941U
Application number: JP9652490U
Authority: JP
Priority date: 1990-09-17
Filing date: 1990-09-17
Publication date: 1992-05-12

Description

[Brief explanation of drawings]

第１図は本考案の過給機付ガソリンエンジンの
要部を示す回路図、第２図は従来から知られたガ
ソリンエンジンの燃料供給装置の１例を示す回路
図、第３図は従来のガソリンクーラの１例を示す
縦断面図、第４図は第３図のＡ部拡大断面図であ
る。１……ガソリンタンク、２……フユエルポンプ
、３……フユエルダンパ、４……フユエルフイル
タ、５……インジエクタ、６……プレツシヤレギ
ユレータ、７……エンジン、８……インテークマ
ニホールド、９……余剰ガソリン戻し管、１０…
…キヤニスタ、１１……蒸気配管、１２……凝縮
器、１３……空調機、１４……エジエクタ、１５
……吸入口、１６……吸入管、１７……燃料供給
管、１８……ノズル、１９……エアクリーナ、２
０……給気流路、２１……ターボチヤージヤー、
２２……インペラ、２３……インタークーラ、２
４……ガソリンクーラ、２５……放熱器、２６…
…送液ポンプ、２７……第一の流体送り込み管、
２７ａ……上流部、２７ｂ……下流部、２８……
第一の流体戻し管、２９……三方弁、３０……第
二の流体送り込み管、３１……第二の流体戻し管
、３２……温度センサ、３３……制御器、３４…
…吸入管。 Fig. 1 is a circuit diagram showing the main parts of the supercharged gasoline engine of the present invention, Fig. 2 is a circuit diagram showing an example of a conventionally known fuel supply system for a gasoline engine, and Fig. 3 is a circuit diagram showing the main parts of the turbocharged gasoline engine of the present invention. FIG. 4 is a longitudinal sectional view showing one example of a gasoline cooler, and FIG. 4 is an enlarged sectional view of section A in FIG. 3. 1... Gasoline tank, 2... Fuel pump, 3... Fuel damper, 4... Fuel filter, 5... Injector, 6... Pressure regulator, 7... Engine, 8... Intake manifold, 9 ... Surplus gasoline return pipe, 10...
... Canister, 11 ... Steam piping, 12 ... Condenser, 13 ... Air conditioner, 14 ... Ejector, 15
... Suction port, 16 ... Suction pipe, 17 ... Fuel supply pipe, 18 ... Nozzle, 19 ... Air cleaner, 2
0...Air supply flow path, 21...Turbo charger,
22... Impeller, 23... Intercooler, 2
4...Gasoline cooler, 25...Radiator, 26...
...Liquid feed pump, 27...First fluid feed pipe,
27a...Upstream part, 27b...Downstream part, 28...
First fluid return pipe, 29... Three-way valve, 30... Second fluid feed pipe, 31... Second fluid return pipe, 32... Temperature sensor, 33... Controller, 34...
...Suction tube.

Claims

[Scope of Claim for Utility Model Registration] (1) An intercooler that is installed in the middle of an air supply flow path that sends air whose temperature has risen by passing through a turbocharger into the cylinders of a gasoline engine, and which cools the air whose temperature has risen. A gasoline cooler is installed in the middle of a surplus gasoline return pipe that returns surplus gasoline from the gasoline sent from the gasoline tank to the gasoline engine to the gasoline tank, and cools the surplus gasoline flowing through the surplus gasoline return pipe. , a radiator for radiating heat from cooling fluid sent to the gasoline cooler and the intercooler, a first fluid feed pipe connecting the fluid outlet of the radiator and the fluid inlet of the intercooler, and the intercooler. a first fluid return pipe connecting the fluid outlet of the cooler and the fluid inlet of the radiator; a second fluid inlet pipe connecting the fluid outlet of the radiator and the fluid inlet of the gasoline cooler; A second fluid return pipe connects a fluid outlet and a fluid inlet of the radiator, and a first fluid return pipe connects the fluid sent from the radiator to the intercooler and a second fluid return pipe connects the gasoline cooler. a selection means for selectively causing the fluid to flow through the fluid feed pipe; a detection means for detecting a numerical value that changes in relation to the temperature of the air discharged from the supercharger; and a controller for switching means, and this controller switches the selection means to a state where the fluid sent from the radiator is sent to the intercooler when the air temperature becomes higher than a predetermined value, and the controller switches the selection means to a state where the fluid sent from the radiator is sent to the intercooler, A gasoline engine with a supercharger, wherein the selection means is switched to a state in which the fluid sent out from the radiator is sent to the gasoline cooler when the value becomes lower than a predetermined value. (2) An ejector that is installed in the middle of the surplus gasoline return pipe and uses surplus gasoline as a working fluid, and a steam pipe that sends gasoline vapor generated by evaporation of gasoline in the gasoline tank to the canister.
A condenser is installed in the middle of this steam piping and condenses gasoline vapor by heat exchange between the gasoline vapor and the fluid sent through a second fluid feed pipe towards the gasoline cooler, and the bottom of this condenser and the upper air The supercharged gasoline engine according to claim 1, further comprising a suction pipe connected to the suction port of the ejector. (3) Claim 1, wherein the second fluid feed pipe branches off from the middle of the first fluid feed pipe, and the selection means is an electromagnetic switching type three-way valve provided at the branched portion of both feed pipes. 2. The supercharged gasoline engine according to any one of 2 to 2.