摘要:
A viscous fluid type heat generator includes a housing assembly defining a heat generating chamber and a heat receiving chamber for permitting a heat exchanging fluid to circulate therethrough to receive heat from the heat generating chamber. A rotor element is supported by the housing assembly separately from the drive shaft to be rotationally driven by the drive shaft for rotation within the heat generating chamber. A viscous fluid is held in a gap defined between the inner wall surfaces of the heat generating chamber and the outer faces of the rotor element, for heat generation under a shearing stress applied by the rotation of the rotor element. Frictional coupling means are provided for frictionally coupling the drive shaft with the rotor element and for mechanically transmitting a rotation of the drive shaft to the rotor element to permit the rotor element to rotate in the heat generating chamber at a speed not higher than a predetermined thermal limit speed. If the rotation speed of the rotor element 22 exceeds the predetermined thermal limit speed, the viscous fluid could generate excessive heat, which would probably accelerate the thermal degradation of the viscous fluid.
摘要:
A viscous fluid type heat generator including a drive shaft for receiving a rotative drive force from an external drive source and mounting thereon a plurality of rotor elements to be rotated together with the drive shaft, a housing assembly in which at least one first heat generating component chamber confining therein a heat generative viscous fluid to which a shearing action is applied by the rotor elements, a second heat-generating-performance variable chamber confining a heat generative viscous fluid to which shearing action is applied by the rotor element, and a heat receiving chamber in which heat exchanging liquid flows therethrough to receive heat from the first and second heat generating chambers. The viscous fluid type heat generator further may includes a control chamber for controlling an amount of the viscous fluid in the second heat-generating-performance variable chamber, and a heat-generating-performance changing unit.
摘要:
An automobile heating system adapted for being incorporated in an automobile climate control system and being mounted on an engine housing within an engine compartment of an automobile without occupying a large space. The automobile heating system may be manufactured at low cost, and satisfactorily heats the passenger cabin of the automobile and enables the engine to quickly warm up after the start of the engine. The automobile heating system is provided with an auxiliary heat source integrally combined with one of the auxiliary machines including an idler, a power steering hydraulic pump or an alternator.
摘要:
A viscous fluid type heat generator is provided with a case unit having a front case and a rear case and has an inner surface defining a heat generating chamber, a heat receiving chamber formed in at least one of the front case and the rear case so as to extend contiguously with the heat generating chamber to form a heat exchanging fluid passage through which a heat exchanging fluid is circulated, a drive shaft supported for rotation in a bearing on the front case, a rotor element mounted on the drive shaft for rotation together with the drive shaft in the heat generating chamber, a viscous fluid filling up a space between the inner surface of the case defining the heating chamber and the outer surface of the rotor for heat generation by the rotation of the rotor element, and a connecting unit for connecting the rotor element to the drive shaft so that the rotor element is unable to turn relative to the drive shaft but is able to incline to the axis of the drive shaft and to move axially on the drive shaft. The connecting unit may be a spline fitting, a one-flat fitting or a two-flat fitting.
摘要:
An automotive air conditioning apparatus includes a Stirling refrigerator. In this refrigerator, many fins absorb heat from air in a passenger room, and a water jacket is connected to the cooling circuit of the vehicle engine by way of a pipe. Since an operating gas absorbs heat at the time of isothermal expansion, fins cool the passenger room without using Freon. So, a condenser is not required. Although the operating gas is heated at the time of isothermal compression, the water jacket radiates heat to circulating water of the vehicle engine. So, an individual, i.e., radiator is not required.
摘要:
A fluidic apparatus includes a pulley driven by an engine, torque limiting means disposed in the pulley and adapted to shut off the transmission of driving force transmitted by the pulley when overload is applied thereto, and a driving shaft driven by the torque limiting means. The torque limiting means includes a boss formed coaxially with the pulley, a collar disposed integrally and coaxially with the driving shaft, and a coiled spring adapted to hold outer peripheral surfaces of the boss and the collar by tightening with a predetermined tightening allowance. With the torque limiting means, if abnormal loads should be applied to the driving shaft, there hardly occur internal breakages, or the like, in the fluidic apparatus. In addition, because the torque limiting means has such a simple construction, the fluidic apparatus is down-sized and reduced in manufacturing cost.
摘要:
A scroll compressor having a stationary scroll member and a rotary scroll member. The compressor is provided with a mechanism for obtaining an orbital movement of the rotary scroll member while preventing a rotation thereof about its own axis. The mechanism has a stationary and a rotary ring arranged in parallel and spaced from each other. These rings form a plurality of circumferential spaced facing pairs of circular holes. The mechanism also has shoes arranged in the respective holes and balls arranged between the shoes in the facing pair of holes. The shoes can maintain a parallel location with respect to the corresponding holes, since the shoes are movable relative to the ball. A sealtight contact of the rotary scroll member with the stationary scroll member is realized over a prolonged period.
摘要:
A volumetric fluid compressor or a so-called scroll type compressor is provided in which a rotary shaft is placed centrally in the front side of a housing, a helical portion of a movable scroll member is contacted eccentrically with a helical portion of a fixed scroll member, the helical portion of the movable scroll member is rotated about the axis of the rotary shaft to which the movable scroll member is mounted with an offset, in such a manner that a closed space defined between the two helical portions may be contracted towards the center for compressing the refrigerant gas which may thus be discharged towards rear from the center of the fixed scroll member. A stationary member for preventing the rotation of movable scroll member is secured in the housing about centrally of the longitudinal axis of the housing for defining a suction chamber towards the front side of the housing and a working chamber on the rear side of the housing, the fixed and movable scroll members being provided within the working chamber. A suction port is formed in the housing directly above the rotary shaft for introducing the fluid to be compressed into the suction chamber whereas a plurality of suction passageways are formed in the stationary ring for introducing the fluid to be compressed from the forward side suction chamber into the rear side working chamber.
摘要:
A swash plate type compressor, having a swash plate fixedly and slantingly secured to a drive shaft and also secured to pistons in such a manner that the pistons reciprocate as the swash plate rotates, has piston webs which have a sliding outer surface and a relief inner surface. A clearance exists between a circumferential surface of the swash plate and the relief surface which creates a wedge effect which, in turn, produces a lubricating film pressure that substantially reduces wear between the circumferential surface of the swash plate and the sliding surface.
摘要:
A roots type fluid machine includes a case having a side wall, a pair of rotary shafts provided in the case, a pair of rotors engaged with each other and fixed to the pair of rotary shafts so as to extend axially, respectively, a suction space formed by the case and the pair of rotors for introducing fluid, a discharge space formed by the case for discharging fluid and the pair of rotors and a transfer chamber formed by the case and the rotor. The rotor has a rotor end surface. A clearance is formed between the side wall and the rotor end surface. The transfer chamber transfers gas introduced in the suction space to the discharge space in accordance with the rotation of the pair of rotors. The case has a guide groove formed in the side wall facing the rotor end surface. Gas leaked from the discharge space into the clearance is introduced to the transfer chamber through the guide groove.