摘要:
A heating system incorporating a heat generator confining therein a heat-generative fluid to viscously generate heat when a shearing action is applied to the fluid by a rotor element, and a heat-generation controller including a heat-generation adjusting actuator which adjustably changes the heat-generating performance of the heat generator on the basis of a signal detected as a first control signal indicating a change in the rotating speed of the rotor element and a preset reference signal. A second control signal detected to indicate a temperature of the heat-generative fluid is used to adjustably change the preset reference signal. The operation of the heating system is controlled by a method in which the first control signal is compared with the preset reference signal to determine whether or not the heat-generation adjusting actuator should actuated to change the heat-generating performance of the heat generator. The method is performed so as to adjust the preset reference signal on the basis of the second control signal which is detected by a temperature sensor.
摘要:
A heat generating apparatus having a housing assembly in which a working chamber including a heat generating region for heat generation and a fluid storing region for storing a viscous fluid, and a heat receiving chamber for receiving heat from the heat generating region are formed. The heat generating apparatus also having a rotor element mounted on a drive shaft to be rotated within the working chamber to apply a shearing action to the viscous fluid within the heat generating region. The viscous fluid generates heat when the shearing action is applied thereto so that the heat is transmitted to a heat exchanging liquid flowing through the heat receiving chamber. The heat generating region and fluid storing region communicating through an aperture formed in a partition wall formed in the working chamber, and the aperture having a gas-phase portion, a liquid-phase portion and a liquid supply portion.
摘要:
A heater utilizing fluid frictional heat according to this invention has a structure suitable for realizing the heater in an elongated shape which is capable of being mounted laterally on an automobile engine. A cylindrical shear applying portion being integral with a drive shaft and having an outer circumferential surface in cylindrical form is disposed in a heat generating chamber formed as a cylindrical space. The shear applying portion is machined with the same support arbors as used in machining the drive shaft. Preferably, the drive shaft and the shear applying portion are machined as a one-piece member made of a single rod-like material.
摘要:
A viscous fluid type heater including a stator having a stationary surface and a rotor having a rotary surface. The rotary surface is opposed to the stationary surface to define a clearance therebetween for the accommodation of a viscous fluid. A circulating fluid flows through a heat exchanging chamber. The rotor rotates about its axis and shears the viscous fluid to produce heat. The heat is transmitted to the circulating fluid from the viscous fluid. The rotary surface is inclined with respect to the rotor axis. The stationary surface is inclined in conformity with the rotary surface.
摘要:
A viscous heater as an auxiliary heating source in a heating system for a vehicle having a water cooled internal combustion engine. The viscous heater has an inlet port 14 for the engine cooling water and an outlet 15 for the engine cooling water, which are connected to respective conduits in the engine cooling system by means of a coupling device. The coupling device include coupling pipes 50A and 50B which are connected to the respective conduits in the engine cooling system at respective directing angles to allow the coupling pipes 50A and 50B to be aligned with the respective conduits.
摘要:
A method for controlling a viscous heater for a vehicle. The vehicle has an engine, an engine cooling system for heating coolant, a passage, a radiator and the viscous heater. The radiator heats the passage using heat from the coolant. The viscous heater uses the driving force of the engine to heat the coolant separately from the engine cooling system. The method includes a step of cutting off the transfer of the driving force of the engine to the viscous heater when the engine is being started. The method also includes a step of transferring the driving force of the engine to the viscous heater when the engine is running.
摘要:
An improved viscous fluid heater is disclosed. The heater has a rotor that is operably coupled to a drive shaft. The rotor is disposed in a heating chamber filled with viscous fluid. The rotor is rotated with the drive shaft to shear the viscous fluid and generate heat in the heating chamber. The rotor has a flat rotor body and a boss. The boss has an axial length greater than that of the rotor body. A mechanism is provided with at least the boss. The mechanism mounts the rotor on the drive shaft and transmits torque of the drive shaft to the rotor.
摘要:
According to the present invention, an oil storage chamber for temporarily accumulating a high-viscosity oil is formed below a heat-generating chamber for accumulating high-viscosity oil which generates heat when a shearing force is applied thereto. When an electromagnetic coil of an electromagnetic clutch is set off, i.e., a rotation of a rotor of a viscous heater is stopped, the high-viscosity oil in the heat-generating chamber moves into the oil storage chamber by own weight thereof, and a liquid level of the high-viscosity oil in the heat-generating chamber is greatly reduced. In this way, when the electromagnetic coil of the electromagnetic clutch is turned on to start the rotor of the viscous heater, a torque applied to the rotor is greatly reduced, with the result that a stress applied to the rotor is reduced.
摘要:
A coating composition comprising a colloidal silica, an organohydroxysilane, a partial condensate of the organohydroxysilane and a liquid medium containing ethylene glycol monobutyl ether in an amount of at least 20% by weight, which is applied to a substrate, shows excellent properties such as storage stability, workability for coating or painting, heat resistance, surface hardness, chemical resistance, abrasion resistance, scratch resistance, stain resistance and weather resistance.
摘要:
In a scroll type of compressor having a stationary scroll, a movable scroll opposed to the stationary scroll and rotatable thereabout but not rotatable about its own axis, so that a closed chamber which decreases in volume during the rotation of the movable scroll is defined by and between the stationary scroll and the movable scroll, and an introduction passage through which a coolant is introduced into the compressor, wherein a capacity varying apparatus comprises a suction restriction mechanism provided in the introduction passage to control the cross sectional area thereof in accordance with the pressure of the coolant, a by-pass passage extending through the stationary scroll to connect the portion of the closed chamber connected to start ends of scroll portions provided on the movable and stationary scrolls, while being reduced in volume, to suction pressure area in the compressor, a by-pass opening and closing mechanism provided in the by-pass passage to open and close the latter in accordance with the pressure of the coolant, and a control valve actuated in accordance with the pressure of the coolant before being restricted, to control the operation of the suction restriction mechanism and the by-pass opening and closing mechanism.