Patent ID: 8435011
Filing Date: 2013-05-07
Classification: F04B

Abstract:
1. An integrated compressor and pump unit adapted for installation on a vehicle and adapted to draw rotary power from a power take-off shaft connected to a power source of the vehicle, the unit comprising: a compressor unit comprising a compressor housing, rotary screws within the compressor housing for compressing a compressible fluid, a rotary input shaft coupled to one of the rotary screws and protruding from a first end of the compressor housing, and a rotary output shaft coupled to one of the rotary screws and protruding from a second end of the compressor housing opposite the first end thereof; means for coupling the rotary input shaft of the compressor unit to the power take-off shaft of the vehicle, the coupling means comprising gearing to enable the rotary screws of the compressor unit to rotate at different speeds than the power take-off shaft; a pump unit mounted to the second end of the compressor housing so as to define an interface between the compressor and pump units, the pump unit comprising a pump housing, rotary pumping means within the pump housing for pumping a second fluid, and a rotary input shaft coupled to the rotary pumping means; means for securing the pump housing of the pump unit to the compressor housing of the compressor unit; means located at the interface for transferring rotary motion of the rotary output shaft of the compressor unit to the rotary input shaft of the pump unit such that rotation of the coupling means directly causes rotation of the rotary input shaft of the compressor unit, rotation of the rotary output shaft of the compressor unit, compression of the compressible fluid by the rotary screws, rotation of the rotary input shaft of the pump unit, and pumping of the second fluid by the rotary pumping means; and means for fluidically sealing the compressible fluid within the compressor unit and the second fluid within the pump unit at the interface therebetween.