Abstract: An exhaust device of an engine, with an exhaust path to lead exhaust gas discharged from the engine to outside, the exhaust device comprising: an exhaust heat collector being configured to collect heat from the exhaust gas, and a cooling part being configured to cool down the exhaust heat collecting part from an outer peripheral side via a cooling fluid; and an exhaust gas flow controlling member in a cylindrical shape, comprising an inlet part and an outlet part where the inflow of the exhaust gas is discharged to an upstream side of the exhaust heat collecting part. An opening diameter of the outlet part is arranged to be smaller than an outer diameter of the exhaust heat collecting part. The exhaust gas flow controlling member is placed so that an open end of the outlet part opposes a central portion of an upstream end plane of the exhaust heat collecting part. The open end of the outlet part and the upstream end plane of the exhaust heat collecting part are a predetermined distance apart.

Abstract: An exhaust device of an engine, with an exhaust path to lead exhaust gas discharged from the engine to outside, the exhaust device comprising: an exhaust heat collector being configured to collect heat from the exhaust gas, and a cooling part being configured to cool down the exhaust heat collecting part from an outer peripheral side via a cooling fluid; and an exhaust gas flow controlling member in a cylindrical shape, comprising an inlet part and an outlet part where the inflow of the exhaust gas is discharged to an upstream side of the exhaust heat collecting part. An opening diameter of the outlet part is arranged to be smaller than an outer diameter of the exhaust heat collecting part. The exhaust gas flow controlling member is placed so that an open end of the outlet part opposes a central portion of an upstream end plane of the exhaust heat collecting part. The open end of the outlet part and the upstream end plane of the exhaust heat collecting part are a predetermined distance apart.

Abstract: A vehicle air conditioning system includes a duct, a refrigerant evaporator, an air conditioning cooling flow passage, a heater core, a heater hot fluid flow passage, a heat exchanger, an electric heater, an electrical component cooling flow passage, a communication flow passage, a fluid temperature sensor and a flow passage selector valve. The duct provides air to a vehicle cabin interior. The cooling flow passage provides cooled refrigerant to the evaporator. The hot fluid flow passage provides hot fluid to the heater core. The heat exchanger exchanges heat between the refrigerant and the hot fluid. The heater warms the hot fluid having undergone heat exchange. The cooling flow passage cools an electrical component. The communication flow passage parallelly connects the hot fluid and electrical component flow passages. The valve allows hot fluid to flow into the cooling flow passage when the hot fluid has a high temperature.

Abstract: A vehicle air conditioning system includes a duct, a refrigerant evaporator, an air conditioning cooling flow passage, a heater core, a heater hot fluid flow passage, a heat exchanger, an electric heater, an electrical component cooling flow passage, a communication flow passage, a fluid temperature sensor and a flow passage selector valve. The duct provides air to a vehicle cabin interior. The cooling flow passage provides cooled refrigerant to the evaporator. The hot fluid flow passage provides hot fluid to the heater core. The heat exchanger exchanges heat between the refrigerant and the hot fluid. The heater warms the hot fluid having undergone heat exchange. The cooling flow passage cools an electrical component. The communication flow passage parallely connects the hot fluid and electrical component flow passages. The valve allows hot fluid to flow into the cooling flow passage when the hot fluid has a high temperature.