摘要:
To make it possible to provide high quality heating or warming with low environmental pollution for a low environmental pollution vehicle such as an electric vehicle or a hybrid vehicle, an automotive air-conditioning apparatus has a hot water circuit that includes a hot water heater (heat source unit), a hot water circulating pump and a heater core to thereby perform a heating operation for heating passenger compartment air wherein, an electric motor is excited under the condition that the rotation thereof is fixed to thereby generate heat in the electric motor. The generated heat is utilized as a heat source for the hot water heater. The restricting mechanism may include two electric motors which are rotated in opposite directions to each other or a lock mechanism. Also, a cooling operation for cooling the passenger compartment air may be performed by driving the compressor (heat source unit) with the electric motors, a dehumidifying operation may be performed by simultaneously effecting the heating and cooling operations, or a heat pump type heating operation may be performed by having the refrigerant circuit acting reversibly.
摘要:
A power transmission mechanism having a pulley rotor and a release plate. The pulley rotor is coaxial with the release plate, and power from the pulley rotor is transmitted to the release plate to rotate the pulley rotor and the release plate in the same direction. A spiral spring is located between the pulley rotor and the release plate. The spiral spring is releasably engaged with the pulley rotor. A transmission surface is provided on the pulley rotor to oppose and engage a free end of the spiral spring. The transmission surface transfers power from the pulley rotor to the release plate, and relative rotation between the pulley rotor and the release plate is permitted due to deformation of the spiral spring. A release projection causes the free end of the spiral spring to move and separate from the transmission surface in accordance with relative rotation between the pulley rotor and the release plate when the load applied to the release plate exceeds a predetermined value. Therefore, if the release plate applies an unusually strong load to the pulley rotor, it will be released from the pulley rotor.
摘要:
An improved displacement control valve incorporated in a variable displacement compressor. The control valve is installed in an accommodating hole formed in a rear housing of the compressor. A cap is attached to a housing body of the control valve. A pressure sensing chamber is defined between the cap and the housing body. A pressure sensing member, or bellows, is located in the pressure sensing chamber. The bellows moves a valve body in accordance with pressure introduced into the pressure sensing chamber. A tubular protector, which is made of an elastic material, is attached to the cap. The control valve is installed in the rear housing by inserting the valve, cap first, into the accommodating hole. During this installation, the protector prevents the cap from directly contacting the housing or inner wall of the accommodating hole. The cap is therefore not deformed. The performance of the control valve is therefore improved.
摘要:
A viscous fluid type heater is disclosed. The heater has a rotor that is mounted on a drive shaft for integral rotation therewith in a heating chamber. The rotor rotates to shears and heats viscous fluid that is accommodated in a clearance defined between an inner surface of the heating chamber and an outer operation surface of the rotor opposed to the inner surface. The operation surface and the inner surface are formed of different materials. The inner surface and the operation surface has a coating for altering characteristics.
摘要:
A variable heat-generating performance viscous fluid type heat generator having a heating chamber in which an electrorheological fluid is confined to generate heat upon being subjected to a shearing action by the rotation of a rotor element within the heating chamber, a heat receiving chamber arranged adjacent to the heating chamber and permitting a heat exchanging liquid to receive heat from the electrorheological fluid and to circulate through the heat receiving chamber and an external heating circuit, and a controllable electricity conducting unit adjustably conducting electricity through the electrorheological fluid so as to adjustably change the viscosity of the electrorheological fluid to thereby vary the heat-generating performance of the viscous fluid type heat generator.
摘要:
A piston reciprocating type compressor has a passage structure for connecting a crank chamber to a discharge chamber and/or a suction chamber. A gas bleeding passage connects the crank chamber to the suction chamber. The gas compressed by the piston in the cylinder bore is leaked to the crank chamber causing the pressure raise in the crank chamber. The bleeding passage release the excessive pressure in the crank chamber to the suction chamber. The bleeding passage is partially deformed by a notch formed in a gasket. The notch has a smaller sectional area than the rest of the bleeding passage, regulating the pressure transmitted from the crank chamber to the suction chamber.
摘要:
A washing-drying machine wherein a tub is mounted in a prism-shaped housing by a pair of tilting shafts in order to carry out the washing-rinsing-spinning steps with a tub substantially vertical and to carry out the warm-air drying step with a tub substantially horizontal. The tilting shafts are arranged on a horizontal axis extending through diagonally opposite corners of the housing so that the capacity of the tub can be maximized, even through the tub tilts, and thereby the capacity of the housing can be efficiently utilized.
摘要:
A cooling device comprising a variable displacement type compressor, a condenser, an expansion valve and an evaporator. The displacement of the compressor is controlled in response to both the actual evaporation temperature of refrigerant and the actual condensing temperature of the refrigerant, so that the actual evaporation temperature approaches a predetermined desired evaporation temperature which is reduced as the actual condensing temperature is increased.
摘要:
A variable displacement compressor with a variable angle non-rotary wobble plate, having a control valve assembly which includes a pressure detecting unit for detecting a change in a pressure in the compressor crankcase and a single valve mechanism arranged in a communication passageway between the crankcase and the compressor suction chamber and able to control communication between the crankcase and the suction chamber in association with a pressure changing signal from the pressure detecting unit so that the pressure in the crankcase is maintained at a predetermined pressure value.
摘要:
A swash plate type compressor having shoes provided with center holes on the slidable surfaces. The center hole provided with a bottom acts as a reservoir for lubricating oil and supplys the oil on the slidable surface of the shoe, which slides against the swash plate. There can be a second ring groove concentric to the center hole, or annexed grooves which are stretching outward radially from the center hole. The center hole also prevents the center part from protruding outward by thermal expansion, which is caused by friction. The slidable surface of the shoe is preferably coated with a layer containing solid lubricant so as to smooth the sliding motions.