摘要:
A vehicle heat generator, which can easily be installed in an engine room, includes a housing, and a heating chamber housed in the housing. The heating chamber contains viscous fluid. A heat transfer chamber is housed in the housing about the heating chamber. Circulating fluid flows through the heat transfer chamber. A rotor is rotatably supported in the heating chamber. The rotor shears the viscous fluid to generate heat. A flow passage of the circulating fluid is defined in the heat transfer chamber. The flow passage encompasses substantially the entire rotor. An ingoing passage connects the exterior of the housing to the flow passage. The circulating fluid flows through the ingoing passage from the exterior to the flow passage. An outgoing passage connects the flow passage to the exterior. The circulating fluid flows through the outgoing passage from the flow passage to the exterior. The ingoing passage and the outgoing passage extend substantially parallel to the rotor axis. The structure of the heat generator also facilitates movement of the viscous fluid in the heating chamber.
摘要:
A viscous fluid type heat generator having a heat generating chamber in which heat generation by the viscous fluid is carried out in response to the rotation of a rotor element applying a shearing action to the viscous fluid, a heat receiving chamber in which heat exchanging liquid flows to receive heat from the heat generating chamber, a heat generation control chamber containing the viscous fluid to be supplied into the heat generating chamber and receiving the viscous fluid withdrawn from the heat generating chamber. The heat generator has a fluid supplying passage for supplying the viscous fluid from the heat generation control chamber into the heat generating chamber, a fluid withdrawing passage for withdrawing the viscous fluid from the heat generating chamber into the heat generation control chamber, and a flap valve deformable to open and close one of the fluid supplying and fluid withdrawing passages in response to a change in the heating requirements. The flap valve cooperates with a valve seat having a construction to reduce surface tension of the viscous fluid acting on the flap valve to thereby promote accurate and quick valve action of the flap valve.
摘要:
A viscous fluid type heat generator having a heat generating chamber in which viscous fluid is confined to frictionally generate heat by an application of shearing action due to rotation of a rotor element rotated by a drive shaft, a heat receiving chamber arranged adjacent to the heat generating chamber to permit heat exchanging liquid to receive heat from the viscous fluid within the heat generating chamber during flowing through the heat receiving chamber, partitioning walls arranged in the heat receiving chamber to define a plurality of radially inner and outer concentric annular liquid passages between a liquid inlet for entrance of the heat exchanging liquid and a liquid outlet for delivery of the heat exchanging liquid, and a liquid guide arranged in a position adjacent to the liquid inlet to divert a part of the heat exchanging liquid entering the heat receiving chamber toward the radially outermost liquid passage in the heat receiving chamber.
摘要:
A viscous fluid type heater including a heating chamber and a heat exchange chamber, which is adjacent to the heating chamber. The heating chamber contains viscous fluid and a rotor. The heat exchange chamber is connected to a coolant circuit. The rotor is rotated by a drive shaft to shear the viscous fluid and produce heat in the heating chamber. The heat is transferred to the heat exchange chamber from the heating chamber to heat coolant passing through the heat exchange chamber and circulating in the fluid circuit. The heating chamber has a rear wall. The rotor has a rear surface facing the rear wall. Viscous fluid located between the wall and the rotor is sheared when the rotor rotates. A support shaft is supported by the rotor. The support shaft is eccentrically coupled to the drive shaft, which forces the viscous fluid located between the wall and the rotor to be periodically displaced. This prevents prolonged heating of any part of the fluid, which extends the life of the fluid.