초록 ▼

A combined pump and generator arrangement for use in a vehicle having an engine as the prime mover is disclosed and includes a pump housing with an axially extending actuating shaft and a rotatable member to be driven by the engine to rotate about that actuating shaft with the rotatable member inclu

A combined pump and generator arrangement for use in a vehicle having an engine as the prime mover is disclosed and includes a pump housing with an axially extending actuating shaft and a rotatable member to be driven by the engine to rotate about that actuating shaft with the rotatable member including a fan and a pulley as well as a magnetic arrangement for providing a rotating magnetic field when the rotatable member is driven by the engine. An annular stator assembly is fastened to a face of the pump housing and has windings for providing a voltage in response to the rotating magnetic field. The actuating shaft and annular stator assembly are concentrically disposed with the stator assembly lying intermediate the actuating shaft and the magnetic arrangement of the rotor. The pulley, stator and magnetic arrangement and the fan are supported progressively more remote from the pump housing face. In one preferred form the pump is a vehicle engine coolant pump with the pulley comprising a rim portion of a hub member which is concave in the direction toward the pump with a portion of the pump extending beyond the rim and into the hub concavity so that the forces exerted on the pump bearing by the belt driving the pulley lie generally in a plane including the pulley drive belt with pump bearings extending to either side of that plane. This allows the pump bearings to also function as the generator bearings without unduly shortening bearing life. In assembly, the pump is affixed to the engine and the alternator stator affixed to the pump face and thereafter the pump drive pulley is passed through the stator and attached to the pump actuating shaft. The generator rotor is supported for rotation with the pulley so that a portion of the rotor spans the stator, and the pulley lies intermediate the stator and the pump.

대표청구항 ▼

The method of assembling a pump and alternator with an engine comprising the steps of: affixing the pump to the engine; affixing the alternator stator to the pump; passing a pump drive pulley through the stator and attaching the pulley to the pump actuating shaft; and supporting an alternator rotor

The method of assembling a pump and alternator with an engine comprising the steps of: affixing the pump to the engine; affixing the alternator stator to the pump; passing a pump drive pulley through the stator and attaching the pulley to the pump actuating shaft; and supporting an alternator rotor for rotation with the pulley with a portion of the rotor spanning the stator and with the pulley intermediate the stator and pump. A unified pump-generator for a vehicle engine comprising: a pump including a housing having a face, pump bearings supported in the housing and a rotatable driving shaft journaled in the pump bearings and axially extending from said housing face; a rotatable hub member supported on said shaft for rotation about said shaft; a generator stator mounted on and supported solely by said housing face; a generator rotor fixedly secured to said hub member, the hub member and generator rotor rotatably supported by the pump bearings, said rotor positioned radially outward of the stator and concentric with said shaft; said hub member including a pulley for driving the pump shaft and generator rotor, the pulley being disposed axially intermediate the pump housing and the generator stator.