HEAT PUMP COMPRISING A FLUID COMPRESSOR
First Claim
1. A heat pump including a two-stage, high speed fluid compressor comprising a case having a fluid inlet and a compressed fluid outlet and containing a shaft rotatably mounted about a longitudinal axis, a first compression wheel and a second compression wheel mounted back-to-back on said shaft, said first compression wheel forming a first compression stage and said second compression wheel forming a second compression stage, and a motor positioned between the first compression wheel and the second compression wheel and arranged to rotate the shaft, wherein the case includes a through inner housing extending coaxially to the longitudinal axis and inside which is arranged at least the motor, said inner housing having an inner wall arranged to form, with the motor, channels between at least said inner wall and the motor, said channels extending between the first compression stage and the second compression stage, allowing the motor to be cooled on contact with fluid to be compressed flowing in the channels, and wherein the case includes at its surface at least one cavity forming at least one integrated housing arranged to receive at least one electronic component of the compressor, said integrated housing extending towards the inner wall to allow said electronic component to be cooled by the fluid to be compressed flowing in the channels with the inner wall.
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Accused Products
Abstract
A heat pump including a two-stage, high speed fluid compressor including a case having a fluid inlet and a compressed fluid outlet and containing a shaft rotatably mounted about a longitudinal axis, a first compression wheel and a second compression wheel mounted back-to-back on the shaft, the first compression wheel forming a first compression stage and the second compression wheel forming a second compression stage, and a motor positioned between the first compression wheel and the second compression wheel and arranged to rotate the shaft. The case includes an inner through housing extending coaxially to the longitudinal axis and inside which is arranged at least the motor, the inner housing having an inner wall arranged to form, with the motor, channels between at least the inner wall and the motor to cool the motor.
1 Citation
15 Claims
- 1. A heat pump including a two-stage, high speed fluid compressor comprising a case having a fluid inlet and a compressed fluid outlet and containing a shaft rotatably mounted about a longitudinal axis, a first compression wheel and a second compression wheel mounted back-to-back on said shaft, said first compression wheel forming a first compression stage and said second compression wheel forming a second compression stage, and a motor positioned between the first compression wheel and the second compression wheel and arranged to rotate the shaft, wherein the case includes a through inner housing extending coaxially to the longitudinal axis and inside which is arranged at least the motor, said inner housing having an inner wall arranged to form, with the motor, channels between at least said inner wall and the motor, said channels extending between the first compression stage and the second compression stage, allowing the motor to be cooled on contact with fluid to be compressed flowing in the channels, and wherein the case includes at its surface at least one cavity forming at least one integrated housing arranged to receive at least one electronic component of the compressor, said integrated housing extending towards the inner wall to allow said electronic component to be cooled by the fluid to be compressed flowing in the channels with the inner wall.
Specification