Rotary piston compressor and system for temperature conditioning with rotary piston compressor

Patent metadata

Field	Value
Publication number	US-11841019-B2
Application number	US-202117196175-A
Country	US
Kind code	B2
Filing date	Mar 9, 2021
Priority date	Mar 11, 2020
Publication date	Dec 12, 2023
Grant date	Dec 12, 2023

Abstract

A rotary piston compressor ( 1 ) for a system for temperature conditioning comprises a rotor ( 19 ) mounted in a housing ( 21 ), wherein the rotary piston compressor ( 1 ) is designed in such a way that the rotor ( 19 ) rotates in a first direction in a first operating state and rotates in a second direction opposite to the first direction in a second operating state, and wherein, in the first operating state, a first compressor connection ( 3 ) is designed to supply a heat transfer medium ( 17 ), and a second compressor connection ( 5 ) is designed to discharge the compressed heat transfer medium ( 17 ), and wherein, in the second operating state, the second compressor connection ( 5 ) is designed to supply the heat transfer medium ( 17 ), and the first compressor connection ( 3 ) is designed to discharge the compressed heat transfer medium ( 17 ).

First claim

The invention claimed is:

1. A system comprising:
a rotary piston compressor ( 1 ) for temperature conditioning, the rotary piston compressor having,
a rotor ( 19 ) mounted in a housing ( 21 ),
wherein the rotary piston compressor ( 1 ) is designed in such a way that the rotor ( 19 ) rotates in a first direction in a first operating state and rotates in a second direction opposite to the first direction in a second operating state,
and wherein, in the first operating state, a first compressor connection ( 3 ) is designed to supply a heat transfer medium ( 17 ), and a second compressor connection ( 5 ) is designed to discharge the compressed heat transfer medium ( 17 ),
and wherein, in the second operating state, the second compressor connection ( 5 ) is designed to supply the heat transfer medium ( 17 ), and the first compressor connection ( 3 ) is designed to discharge the compressed heat transfer medium ( 17 );

and pressure reducer ( 7 , 1 ) having a first pressure reducer connection ( 9 , 37 ) and a second pressure reducer connection ( 11 , 39 ), wherein the pressure reducer ( 7 , 1 ) is designed to reduce a pressure of the heat transfer medium ( 17 ) flowing through it and to cause it to expand, and a first heat exchanger ( 13 ) coupled between the first compressor connection ( 3 ) and the first pressure reducer connection ( 9 , 37 );
and a second heat exchanger ( 15 ) coupled between the second compressor connection ( 5 ) and the second pressure reducer connection ( 11 , 39 );
wherein the system can be operated as a heat machine and as a refrigeration machine;
wherein the direction of flow of the heat transfer medium ( 17 ) through the system can be changed by switching the direction of rotation of the rotor ( 19 );
wherein the rotary piston compressor ( 1 ) has a third compressor connection ( 37 ) and a fourth compressor connection ( 39 ),
wherein, in the first operating state, the fourth compressor connection ( 39 ) is designed to supply the heat transfer medium ( 17 ), and the third compressor connection ( 37 ) is designed to discharge the expanded heat transfer medium ( 17 ),
and wherein, in the second operating state, the third compressor connection ( 37 ) is designed to supply the heat transfer medium ( 17 ), and the fourth compressor connection ( 39 ) is designed to discharge the expanded heat transfer medium ( 17 ).

2. The system according to claim 1 ,
which is designed in such a way that, in the first operating state, the first heat exchanger ( 13 ) is operated as an evaporator and the second heat exchanger ( 15 ) is operated as a condenser, and in the second operating state, the first heat exchanger ( 13 ) is operated as a condenser and the second heat exchanger ( 15 ) is operated as an evaporator.

3. The system according to claim 1 ,
wherein the pressure reducer ( 7 , 1 ) is designed to reduce the pressure of the heat transfer medium ( 17 ) flowing from the first to the second pressure reducer connection ( 9 , 37 ; 11 , 39 ) and to cause its expansion, and to reduce the pressure of the heat transfer medium ( 17 ) flowing from the second to the first pressure reducer connection ( 11 , 39 ; 9 , 37 ) and to cause its expansion.

4. The system according to claim 1 ,
wherein the pressure reducer ( 7 ) is designed as an expansion valve.

5. The system according to The system according to wherein the pressure reducer is comprised by the rotary piston compressor ( 1 ) for the system for temperature conditioning having the rotor ( 19 ) mounted in the housing ( 21 ), and
wherein the first pressure reducer connection ( 9 ) is the third compressor connection ( 37 ) and the second pressure reducer connection ( 11 ) is the fourth compressor connection ( 39 ).

6. The system as set forth in claim 1 ,
wherein the rotary piston compressor ( 1 ) is designed in such a way that, in the first operating state, with rotation of the rotor ( 19 ), a chamber ( 31 , 33 , 35 ) defined by the housing ( 21 ) and the rotor ( 19 ) and adjacent to the first compressor connection ( 3 ) is deformed with rotation of the rotor ( 19 ) in such a way that its volume is reduced and it is adjacent to the second compressor connection ( 5 ),
and in that in the second operating state, with rotation of the rotor ( 19 ), the chamber ( 31 , 33 , 35 ) defined by the housing ( 21 ) and the rotor ( 19 ) and adjacent to the second compressor connection ( 5 ), is deformed with rotation of the rotor ( 19 ) in such a way that its volume is reduced and it is adjacent to the first compressor connection ( 3 ).

7. The system as set forth in claim 1 ,
wherein a profile of the rotor ( 19 ) is determined by a trochoid, in particular an epitrochoid, and a housing interior ( 23 ) has a contour ( 29 ) which corresponds to an outer envelope of the trochoid.

8. The system as set forth in claim 1 ,
wherein the rotary piston compressor ( 1 ) is designed as a Wankel compressor, in which the rotor ( 19 ) has an arcuate-triangular profile.

9. The system as set forth in claim 1 ,
in which a valve ( 41 , 43 ) is provided at the first compressor connection ( 3 ) and/or at the second compressor connection ( 5 ).

10. The system as set forth in claim 1 ,
wherein the rotary piston compressor ( 1 ) is designed in such a way that, in the first operating state, with rotation of the rotor ( 19 ), a further chamber ( 31 , 33 , 35 ) defined by the housing ( 21 ) and the rotor ( 19 ) and adjacent to the fourth compressor connection ( 39 ) is deformed with rotation of the rotor in such a way that its volume increases and it is adjacent to the third compressor connection ( 37 ),
and that, in the second operating state, with rotation of the rotor ( 19 ), the further chamber ( 31 , 33 , 35 ) defined by the housing ( 21 ) and the rotor ( 19 ) and adjacent to the third compressor connection ( 37 ) is deformed with rotation of the rotor ( 19 ) in such a way that its volume increases and it is adjacent to the fourth compressor connection ( 39 ).

11. The system as set forth in claim 1 ,
wherein a valve ( 45 , 47 ) is provided at the third compressor connection ( 37 ) and/or at the fourth compressor connection ( 39 ).

12. A system comprising:
a rotary piston compressor ( 1 ) for temperature conditioning, the rotary piston compressor having,
a rotor ( 19 ) mounted in a housing ( 21 ),
wherein the rotary piston compressor ( 1 ) is designed in such a way that the rotor ( 19 ) rotates in a first direction in a first operating state and rotates in a second direction opposite to the first direction in a second operating state,
and wherein, in the first operating state, a first compressor connection ( 3 ) is designed to supply a heat transfer medium ( 17 ), and a second compressor connection ( 5 ) is designed to discharge the compressed heat transfer medium ( 17 ),
and wherein, in the second operating state, the second compressor connection ( 5 ) is designed to supply the heat transfer medium ( 17 ), and the first compressor connection ( 3 ) is designed to discharge the compressed heat transfer medium ( 17 );

a pressure reducer ( 7 , 1 ) having a first pressure reducer connection ( 9 , 37 ) and a second pressure reducer connection ( 11 , 39 ), wherein the pressure reducer ( 7 , 1 ) is designed to reduce a pressure of the heat transfer medium ( 17 ) flowing through it and to cause it to expand, and a first heat exchanger ( 13 ) coupled between the first compressor connection ( 3 ) and the first pressure reducer connection ( 9 , 37 ); and
a second heat exchanger ( 15 ) coupled between the second compressor connection ( 5 ) and the second pressure reducer connection ( 11 , 39 );
wherein use of the

Assignees

• Borgwarner Inc

Inventors

• Dahinten Frank

Classifications

• F04C2/22 Primary

  of internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth-equivalents than the outer member · CPC title

• B60H1/3223

  characterised by the arrangement or type of the compressor (B60H1/3222 takes precedence) · CPC title

• B60H2001/3297

  Expansion means other than expansion valve · CPC title

• F02B2053/005

  Wankel engines · CPC title

• F04C2240/30

  Casings or housings · CPC title