JPS6354824U

JPS6354824U -

Info

Publication number: JPS6354824U
Application number: JP14882086U
Authority: JP
Priority date: 1986-09-30
Filing date: 1986-09-30
Publication date: 1988-04-13
Anticipated expiration: 2001-09-30
Also published as: JPH0625637Y2

Description

[Brief explanation of the drawing]

第１図は、本考案の水冷式インタクーラ付過給
エンジン全体系統図であり、第２図は、上記エン
ジンの給気温度に対する着火遅れ時間関係図であ
り、第３図は、同じく、上記エンジンにおけるコ
ントローラの制御状態図表である。第４図は、従
来の水冷式インタクーラ付過給エンジン系統図で
ある。１，１′…エンジン本体、２，２′…エンジン
冷却用ラジエータ、３，３′…給水管、４，４′
…ウオータポンプ、５，５′…排水管、６，６′
…サーモスタツト、７，７′…バイパス管路、８
，８′…ターボ過給機、９，９′…コンプレツサ
、１０，１０′…インタクーラ、１１，１１′…
給気通路、１２，１２′…排気ガスタービン、１
３，１３′…排気通路、１４，１４′…インタク
ーラ冷却用ラジエータ、１５，１５′…電動フア
ン、１６，１６′…インタクーラ用給水管、１７
，１７′…インタクーラ用排水管、１８，１８′
…給気温度センサ、１９，１９′…冷却水温度セ
ンサ、２０，２０′…コントローラ、２１，２１
′…可変絞り弁、２２，２２′…切換弁、２３，
２３′…バイパス通路。 FIG. 1 is an overall system diagram of a supercharged engine with a water-cooled intercooler according to the present invention, FIG. 2 is a diagram showing the relationship between the ignition delay time and the intake air temperature of the engine, and FIG. It is a control state chart of the controller in . FIG. 4 is a system diagram of a conventional supercharged engine with a water-cooled intercooler. 1, 1'... Engine body, 2, 2'... Engine cooling radiator, 3, 3'... Water supply pipe, 4, 4'
...Water pump, 5,5'...Drain pipe, 6,6'
...Thermostat, 7,7'...Bypass line, 8
, 8'...Turbocharger, 9,9'...Compressor, 10,10'...Intercooler, 11,11'...
Air supply passage, 12, 12'...exhaust gas turbine, 1
3, 13'... Exhaust passage, 14, 14'... Intercooler cooling radiator, 15, 15'... Electric fan, 16, 16'... Intercooler water supply pipe, 17
, 17'...Drain pipe for intercooler, 18, 18'
...Supply air temperature sensor, 19,19'...Cooling water temperature sensor, 20,20'...Controller, 21,21
'...Variable throttle valve, 22, 22'...Switching valve, 23,
23'...Bypass passage.

Claims

[Scope of utility model registration request]

For intercooler cooling, the cooling water that circulates between the engine cooling radiator and the engine body is cooled by an intercooler that cools the air supplied by the turbo supercharger, and an electric fan that is installed separately from the engine cooling radiator. The operation of the electric fan and the variable throttle valve that controls the flow of cooling water to the intercooler cooling radiator controls the temperature of the supply air drawn into the engine and the cooling water flowing into the intercooler. In an engine equipped with a controller that controls based on water temperature, a bypass passage is formed in parallel with the intercooler, a switching valve is installed at a branch point of the bypass passage, and the switching valve is the controller, A supercharged engine with a water-cooled intercooler that is controlled based on the supply air temperature and the temperature of the cooling water flowing into the intercooler, similar to a variable throttle valve and an electric fan.