APPARATUS FOR HEATING INTAKE SYSTEM FOR ENGINE OF VEHICLE BY HOT WATER

摘要

In an apparatus for heating an intake system for an engine of a vehicle by hot water, the vehicle having an engine compartment placed in a front part, in which a radiator is placed on a front side, and the engine and the intake system are placed behind the radiator. The intake system includes an intake passage and a throttle device. A hot water passage is provided to circulate hot water around the throttle device to heat the throttle device, the hot water having been warmed by cooling the engine. In the hot water passage, a hot water control valve is provided. In the hot water control valve, an expanding-contracting member made of shape-memory alloy is provided to control opening and closing of the hot water control valve in response to the internal temperature of the engine compartment.

主权项

1. An apparatus for heating an intake system for an engine of a vehicle by hot water, the vehicle having an engine compartment placed in a front part, in which a radiator is placed on a front side, and the engine and the intake system are placed behind the radiator,
wherein the intake system includes an intake passage to introduce air into the engine and an accessory device provided in connection with the intake passage, and the apparatus comprises:
a hot water passage configured to allow hot water warmed by cooling the engine to circulate around the accessory device to heat the accessory device;a hot water control valve configured to control a flow of the hot water in the hot water passage; anda control unit configured to control the hot water control valve to open and close according to an internal temperature of the engine compartment.