Patent application number | Description | Published |
20110259287 | Engine cooling device - In an engine, a block-side flow path for circulating cooling water to cool a cylinder block, and a head-side flow path for circulating cooling water to cool a cylinder head are formed. A head-side outlet temperature of cooling water flowing out of the head-side flow path is adjusted by using a water pump that pressure sends the cooling water to both the block-side flow path and the head-side flow path. A block-side outlet temperature of cooling water flowing out of the block-side flow path is adjusted by a first thermostat that changes a flow amount of the cooling water flowing out of the block-side flow path. The cooling water flowing out of the block-side flow path is used as a heat source of first and second heater cores for heating air. | 10-27-2011 |
20120318473 | COOLING DEVICE FOR VEHICLE - A cooling device for a vehicle includes a first radiator and a second radiator. The first radiator includes first tubes through which first coolant flows, and the second radiator includes second tubes through which second coolant flows. The second radiator is arranged downstream of the first radiator in a flow direction of cooling air, and the second tubes are elongated in a longitudinal direction different from a longitudinal direction of the first tubes. The second radiator is configured to cause a flow amount of the second coolant flowing respectively in the second tubes to be gradually increased with respect to a flow direction of the first coolant flowing in the first tubes. | 12-20-2012 |
20140041826 | VEHICLE TEMPERATURE CONTROL APPARATUS AND IN-VEHICLE THERMAL SYSTEM - A vehicle temperature control apparatus for controlling temperature of a temperature control object, which is at least one of inside air of a vehicle compartment and a vehicle component, includes a heat capacitive element capable of storing heat, a refrigeration cycle in which heat is absorbed from a low temperature side and is dissipated to a high temperature side, a heat exchanger that causes the heat capacitive element to exchange heat with refrigerant of the refrigeration cycle, and a heat dissipation portion which dissipates heat in the refrigerant of the refrigeration cycle to the temperature control object. Thus, a temperature control by using the heat capacitive element can be effectively performed. | 02-13-2014 |
20150056530 | HEAT-SOURCE COOLING DEVICE - A fuel cell is used for generating driving energy for a vehicle. The reserve-tank inlet valve is located between a suction side of the coolant pump and a position in the coolant circuit at which a pressure of the coolant controlled by the reserve-tank inlet valve is an intermediate value between a discharge pressure of the coolant pump and a suction pressure of the coolant pump during an operation of the coolant pump. Even if the fuel cell is stopped generating electric power, the coolant pump is made continue operating even when the vehicle is traveling in a case that a coolant temperature exceeds a predetermined temperature. The coolant pump is made stop rotating after the coolant temperature becomes lower than or equal to the predetermined temperature. Accordingly, an occurrence of cavitation in the coolant pump is restricted at the time of restarting the fuel cell just after the fuel cell is stopped in a vehicle that is driven by the driving energy generated by the fuel cell working as a driving-energy generator. | 02-26-2015 |
20150072259 | FUEL CELL SYSTEM - A radiator cap is connected to a circulating circuit at a connecting point located upstream of a water pump in a flow direction of coolant and that regulates a pressure in the circulating circuit to be within a predetermined pressure range that is higher than or equal to an atmospheric pressure at the connecting point. A rotary valve is disposed in the circulating circuit at upstream of the connecting point of the radiator cap in the flow direction of coolant. Accordingly, a cavitation is restricted from occurring, and the water pump can perform enough efficiency. A communication passage that has an upstream end and a downstream end connected to the circulating circuit may be disposed instead of the radiator cap. In this case, a pressure regulating valve is disposed in the communication passage. | 03-12-2015 |
20150101693 | FLOW PASSAGE SWITCHING UNIT - A flow passage switching unit includes side-by-side arranged rotary valve parts. The valve part includes a casing, side walls, a peripheral wall, first fluid ports, a second fluid port, a rotary shaft, and a valving element. A flow passage, through which the first fluid ports and the second fluid port selectively communicate, is formed by rotation of the valving element. The unit includes a driving mechanism driving each valving element by its corresponding predetermined rotation angle. The driving mechanism includes one driving source, and a motive power transmission member transmitting rotation motive power of the driving source respectively to the valve parts. Motive power of the driving source is transmitted to each rotary shaft of the valve parts to drive each valving element to a position, which position of the valving element relative to the first and second fluid ports is different from one another among the valve parts. | 04-16-2015 |
20150101789 | THERMAL MANAGEMENT SYSTEM FOR VEHICLE - First circulation portions switch a flow of a heat medium such that one of the heat media for two systems selectively circulates through a radiator flow path or a first bypass flow path. Second circulation portions switch the flow of the heat medium such that the heat media for the two systems selectively circulate with respect to a second flow path group. The first circulation portions and the second circulation portions are adapted to switch the flow of the heat medium so as to form a first circulation circuit for allowing the heat medium to circulate among a first flow path group, the second flow path group, and a first pump, as well as a second circulation circuit for allowing the heat medium to circulate among the first flow path group, the second flow path group, and a second pump. | 04-16-2015 |
20150129161 | THERMAL MANAGEMENT SYSTEM - A heat medium discharge side of a first pump and a heat medium discharge side of a second pump are connected to a first switching valve in parallel. Heat medium inlet sides of the respective target devices for heat exchange included in a first target device group for heat exchange are connected to a first switching valve in parallel. The heat medium inlet side of the first pump and the heat medium inlet side of the second pump are connected to a second switching valve in parallel. The heat medium outlet sides of the respective target devices for heat exchange included in the first target device group for heat exchange are connected to the second switching valve in parallel. Furthermore, switching is performed between a state of circulation of the heat medium between the first pump and the target device, and a state of circulation of the heat medium between the second pump and the target device. | 05-14-2015 |