Abstract: A vehicle cooling device for radiating the heat using a refrigerant includes a main valve for controlling a flow distribution of the refrigerant distributed to a radiator and to at least one of conduits among conduits where the refrigerant flows bypassing the radiator in accordance with a valve opening degree, a thermo element for varying the valve opening degree in accordance with the temperature of the refrigerant, the thermo element including a temperature sensing portion, a water pump for circulating the refrigerant via the main valve, the water pump including an inlet, a radiator conduit provided downstream of the radiator, the inlet of the water pump and the radiator conduit arranged being opposite to each other along an operational direction of the main valve, and the temperature sensing portion of the thermo element positioned at the inlet side of the water pump relative to the main valve.

Abstract: A method for controlling an electronically controlled thermostat provided in a cooling system of an internal combustion engine includes predicting a thermal radiation amount of a radiator when a water temperature of engine cooling water is stabilized at a second set temperature or at a first set temperature without detecting the water temperature not to cause temperature hunting, when the water temperature is controlled from a first set temperature to the second set temperature lower than the first set temperature or from the second set temperature to the first set temperature. The electronically controlled thermostat is controlled in accordance with the predicted thermal radiation amount.

Abstract: An electronically controlled thermostat enabling stable valve body actuation, preventing overshooting and hunting, and with reduced size and simplified construction. The thermostat can execute arbitrary variable control of cooling water temperature and includes a thermo-element having a piston actuating opening and closing within a housing of a first valve body and a second valve body to switch the flow path of cooling water by sensing the cooling water temperature and an element guide member holding the thermo-element within the housing. A temperature-sensing chamber is formed by isolation by the element guide member from the flow path in which cooling water on the radiator exit side flows; the temperature-sensing portion of the thermal element is disposed to face this chamber. A linking hole transmits the temperature of cooling water on the radiator exit side from within the flow path to the temperature-sensing portion within the temperature-sensing chamber.

Abstract: The object of the present invention is to obtain a thermostat device capable of improving the workability and assemblability, reducing costs, and downsizing the entire device with a minimum number of components. This thermostat device has a first valve disc 22 for opening and closing a first fluid passage 3b, and a second valve disc 23 for opening and closing a second fluid passage 3d, and constituted so as to open either the first fluid channel or second fluid channel and close the other by making the valve discs move integrally in conjunction with the operation of an operating member 21 in accordance with the temperature change of the fluid. The operating member has a case 31 which seals in one end side thereof a thermal expansion body 32 having a property of expanding and contracting in accordance with a temperature change, and retains a piston 33 from the opening of the other end side thereof in a freely reciprocable manner.

Abstract: A thermostat configured to control engine coolant temperature, a coolant temperature control method and system, includes a thermoelement, arranged to open a main valve upon reaching a predetermined temperature; a heating element arranged, based on an output signal from a controller, to heat said thermoelement, the coolant flowing through the thermostat being exclusively coolant from the radiator. Further, the controller may transmit an output signal to said heating element according to an engine signal received from an engine temperature sensor arranged near the engine block to close one or more coolant flow slots arranged at the thermostat exit until a certain predetermined temperature is sensed. The output signal may be transmitted upon the engine temperature sensor sensing a predetermined temperature.

Abstract: This is a cooler for dissipating heat away from an electronic device (A). The cooler includes a liquid cooling mechanism (B), a forcible air cooling mechanism (C) and a substrate (D). The liquid cooling mechanism includes a set of metal pipes (20-21) connected to a pump (3) with an impeller (16) to transfer cooling liquid to a liquid channel (4). The forcible air cooling mechanism (C) includes a fan (25) discharging air onto a radiating fin (37) located on the set of metal pipes (20-21). The substrates (D) is in fluid communication with the forcible air cooling mechanism (C) and the liquid cooling mechanism (B) and in direct contact with the electronic device (A) so as to remove heat away from the electronic device (A).

Abstract: The present invention removes the problem conventionally confronted by electronically controlled thermostats that implementation of improved fuel consumption is difficult, and implements high cooling-water temperature controllability, improved fuel consumption, and an improvement of the heater function and so forth with high accuracy and at low cost.

Abstract: A thermostat configured to control engine coolant temperature, a coolant temperature control method and system, includes a thermoelement, arranged to open a main valve upon reaching a predetermined temperature; a heating element arranged, based on an output signal from a controller, to heat said thermoelement, the coolant flowing through the thermostat being exclusively coolant from the radiator. Further, the controller may transmit an output signal to said heating element according to an engine signal received from an engine temperature sensor arranged near the engine block to close one or more coolant flow slots arranged at the thermostat exit until a certain predetermined temperature is sensed. The output signal may be transmitted upon the engine temperature sensor sensing a predetermined temperature.

Abstract: Provided is a block heater structured so as to be capable of maintaining the thermal transmission and thermal effect, as well as the mechanical strength, in a prescribed state in the respective components upon assembling the sheathed heater, cylindrical body, cap, and so on of the engine cooling water antifreeze block heater. This block heater has a sheathed heater 2 having a heating element 18 embedded in heat-resistant insulation powder 22 inside a sheath 11; a cylindrical body 3 for retaining the back-end portion of the sheathed heater and mounted onto a heater mounting portion of an automotive engine block; and a cap 4 attached to the opposite end of the sheathed heater of this cylindrical body, and structured so as to retain the heater connection end of a cable 5 having a power supply outlet at one end thereof. A gap 30 is provided between the end on the cap side of the cylindrical body and the end on the body side of the cap.

Abstract: A thermo element that makes it possible to efficiently raise the temperature of a whole body of wax encapsulated in a case and to obtain a reliable seal structure for a terminal withdrawal portion used to control the electrification of a heating device. The thermo element includes a thermally expanding body encapsulated in a tube-type case, and which allows a moving piston to advance toward and withdraw from the outside of the case with a change in volume of the thermally expanding body that accompanies a variation in the temperature thereof, and a heating element disposed in the case and that thermally affects the thermally expanding body. An electrode member is disposed inside the heating element. Further, a plate spring member, which also serves as a heat radiation fin for radiating heat to the thermally expanding body, is disposed at the outer circumference of the heating element. The plate spring member has a larger surface area than the heating element.

Abstract: A control to enable a further degree of enhancement in combustion efficiency in an automobile by effectively performing temperature control of cooling water in an automobile engine in accordance with various states of operation. Parameters from a variety of sensors that detect the state of an automobile engine are input into an engine control unit. Then, when the engine control unit determines from values of the accelerator opening and engine rotation speed, which serve as parameters indicating the operating state of the automobile, that the engine load is about to decrease, control is performed in the electronic control thermostat to maintain the cooling water temperature at a high temperature. Conversely, when it is determined that medium or high loads are due to increase, the control method is switched such that the electronic control thermostat is controlled by reading a target temperature corresponding to these parameter values from the engine control unit.

Abstract: A vehicle cooling device for radiating the heat using a refrigerant includes a main valve for controlling a flow distribution of the refrigerant distributed to a radiator and to at least one of conduits among conduits where the refrigerant flows bypassing the radiator in accordance with a valve opening degree, a thermo element for varying the valve opening degree in accordance with the temperature of the refrigerant, the thermo element including a temperature sensing portion, a water pump for circulating the refrigerant via the main valve, the water pump including an inlet, a radiator conduit provided downstream of the radiator, the inlet of the water pump and the radiator conduit arranged being opposite to each other along an operational direction of the main valve, and the temperature sensing portion of the thermo element positioned at the inlet side of the water pump relative to the main valve.

Abstract: An object of the present invention is to provide a thermostat device which enables a valve body to operate with stability, which can prevent overshoot and hunting, and in which the size of the thermostat device itself can be reduced. A first valve body and a second valve body are removably supported on a main shaft which is supported by the distal end of a piston of a thermo-element which causes the first valve body and second valve body to open and close by sensing the temperature of cooling water, and a temperature sensing section of said thermo-element is disposed so as to sense cooling water temperature by contacting only the cooling water from the engine outlet side without directly contacting the cooling water from the radiator outlet side.

Abstract: The present invention relates to a cooling controller for cooling an internal-combustion engine such as an internal-combustion engine for an automobile, comprising a temperature detector for detecting the temperature of the cooling medium placed in a first or second circulation channel, and a flow control for controlling the flow of the cooling medium placed in the first or second circulation channel. The first circulation channel passes through the engine and the radiator as in a conventional cooling system. The second circulation channel, which is used in case of a detected failure of the radiator or thermostat valve, includes the heat exchanger of the automobile's air-conditioning system. When the failure is detected an air conditioner controller maximizes the amount of heat radiated from the air conditioning exchanger to prevent overheating.

Abstract: Provided is a thermostat device enabling stable valve element operation and capable of preventing overshoots and hunting, and which enables the miniaturization of the thermostat device itself. Inside the housing of a bottom bypass-type thermostat device comprising a main valve element on the main body and a bypass valve element on the bottom side, the main valve element and bypass valve element are supported by a main shaft supported at the piston tip of a thermoelement, the temperature sensor of the thermoelement is disposed on the main shaft such that it does not directly contact the cooling water from the radiator outlet and senses the temperature by contacting a portion of the cooling water from the engine outlet, and the temperature sensor is equipped with a heating element.

Abstract: The present invention relates to a cooling controller for cooling an internal-combustion engine such as an internal-combustion engine for an automobile, comprising a temperature detector for detecting the temperature of the cooling medium placed in a first or second circulation channel, and a flow control for controlling the flow of the cooling medium placed in the first or second circulation channel. The first circulation channel passes through the engine and the radiator as in a conventional cooling system. The second circulation channel, which is used in case of a detected failure of the radiator or thermostat valve, includes the heat exchanger of the automobile's air-conditioning system. When the failure is detected an air conditioner controller maximizes the amount of heat radiated from the air conditioning exchanger to prevent overheating.

Abstract: A thermostat 1 which placed in a cooling fluid channel of an internal combustion engine and which controls the flow of a cooling fluid within the cooling fluid channel depending upon a change in the temperature is disclosed.

Abstract: The present invention relates to a cooling controller for cooling an internal-combustion engine such as an internal-combustion engine for an automobile, comprising a temperature detector for detecting the temperature of the cooling medium placed in a first or second circulation channel, and a flow control for controlling the flow of the cooling medium placed in the first or second circulation channel.

Abstract: A flow control process for controlling a cooling fluid flowing through a cooling fluid channel of an internal combustion engine. The process moves a valve element forward or backward in the manner of crossing the cooling fluid channel according to a temperature change of the cooling fluid so as to communicate or block the cooling fluid channel.

Abstract: A fitting construction of the thermostat 1, having a valve body 12 which actuates by the function of a piston portion 11, 15, 15a, 16 and a spring portion 6 depending upon a temperature change in the cooling fluid to cross said fluid channel FA, and which blocks or communicates the fluid channel by the movement is disclosed. The construction has a valve body 17 possessing an insert hole 5a into which the valve body 17 is inserted, an alignment groove 2b formed along the direction of the insertion of the valve body 17, projection 17g is placed on the circumference surface of the valve body 17, which is engaged with the alignment groove 2b, and which can slide along the alignment groove 2b, and a cover 19 which is screwed from the hole opening 2a onto the insert hole 5a, and which pushes and supports the valve body 17 at the end thereof. By having such a construction, there is no need for enlarging the diameter of the pipe, making it possible to moderate the restrictions of the thermostat placement.