Scroll compressor with economizer injection

Patent metadata

Field	Value
Publication number	US-12012963-B2
Application number	US-202217850138-A
Country	US
Kind code	B2
Filing date	Jun 27, 2022
Priority date	Jun 28, 2019
Publication date	Jun 18, 2024
Grant date	Jun 18, 2024

Abstract

A scroll compressor includes a compressor housing, an orbiting scroll member, a non-orbiting scroll member, an economizer injection inlet, and a discharge outlet. The orbiting scroll member and the non-orbiting scroll member are disposed within the compressor housing. The orbiting scroll member and the non-orbiting scroll member are intermeshed thereby forming a compression chamber within the compressor housing. The non-orbiting scroll includes at least one compression inlet port. An economizer injection inlet is formed through the compressor housing and in fluid communication with the compression chamber via the at least one compression inlet port. The discharge outlet is in fluid communication with the compression chamber.

First claim

What is claimed is:

1. A scroll compressor, comprising:
a compressor housing;
an orbiting scroll member disposed within the compressor housing;
a non-orbiting scroll member disposed within the compressor housing, wherein the orbiting scroll member and the non-orbiting scroll member are intermeshed thereby forming a compression chamber within the compressor housing, the non-orbiting scroll including at least one compression inlet port;
an economizer injection inlet formed through the compressor housing and in fluid communication with the compression chamber via the at least one compression inlet port;
an intermediate pressure chamber formed in the compressor housing between the non-orbiting scroll member and the compressor housing; and
a discharge outlet in fluid communication with the compression chamber.

2. The compressor of claim 1 , wherein the intermediate pressure chamber is fluidly connected to the economizer injection inlet and the at least one compression inlet port.

3. The compressor of claim 1 , wherein the at least one compression inlet port is in fluid communication with the compression chamber at a location wherein the working fluid being compressed is between a suction pressure and a discharge pressure.

4. The compressor of claim 1 , wherein the economizer injection inlet has a longitudinal axis, the longitudinal axis of the economizer injection inlet is parallel to a longitudinal axis of the discharge outlet.

5. The compressor of claim 1 , wherein the discharge outlet has a longitudinal axis, the longitudinal axis of the discharge outlet being parallel to a longitudinal axis of a driveshaft of the scroll compressor.

6. The compressor of claim 1 , wherein the scroll compressor is a single-stage, vertical scroll compressor.

7. A heating, ventilation, air conditioning, and refrigeration (HVACR) system, comprising:
a refrigerant circuit, including:
a compressor, a condenser, an expansion device, an economizer, and an evaporator, fluidly connected, wherein a working fluid flows therethrough, wherein the compressor is a scroll compressor, the scroll compressor including:
a compressor housing,
an orbiting scroll member disposed within the compressor housing,
a non-orbiting scroll member disposed within the compressor housing, wherein the orbiting scroll member and the non-orbiting scroll member are intermeshed thereby forming a compression chamber within the compressor housing, the non-orbiting scroll including at least one compression inlet port,
an economizer injection inlet formed through the compressor housing and in fluid communication with the compression chamber via the at least one compression inlet port,
an intermediate pressure chamber formed in the compressor housing between the non-orbiting scroll member and the compressor housing, and
a discharge outlet in fluid communication with the compression chamber.

8. The system of claim 7 , wherein the intermediate pressure chamber is fluidly connected to the economizer injection inlet and the at least one compression inlet port.

9. The system of claim 7 , wherein the at least one compression inlet port is in fluid communication with the compression chamber at a location wherein the working fluid being compressed is between a suction pressure and between a discharge pressure.

10. The system of claim 7 , wherein the economizer injection inlet has a longitudinal axis, the longitudinal axis of the economizer injection inlet is parallel to a longitudinal axis of the discharge outlet.

11. The system of claim 7 , wherein the discharge outlet has a longitudinal axis, the longitudinal axis of the discharge outlet being parallel to a longitudinal axis of a driveshaft of the scroll compressor.

12. The system of claim 7 , wherein the scroll compressor is a single-stage, vertical scroll compressor.

13. A scroll compressor, comprising:
a compressor housing having a plurality of portions including an upper housing portion and a lower housing portion;
an orbiting scroll member disposed within the compressor housing;
a non-orbiting scroll member disposed within the compressor housing, wherein the orbiting scroll member and the non-orbiting scroll member are intermeshed thereby forming a compression chamber within the compressor housing, the non-orbiting scroll including at least one compression inlet port;
an economizer injection inlet formed through the upper housing portion and in fluid communication with the compression chamber via the at least one compression inlet port; and
a discharge outlet in fluid communication with the compression chamber and formed through the upper housing portion,
wherein the upper housing portion and the non-orbiting scroll member are sealingly engaged, thereby forming an intermediate pressure chamber therebetween.

14. The compressor of claim 13 , further comprising a seal disposed between the upper housing portion and the non-orbiting scroll member.

15. The compressor of claim 13 , wherein each of the at least one compression inlet port have a longitudinal axis that is angled relative to a longitudinal axis of the scroll compressor.

16. The compressor of claim 13 , wherein a longitudinal axis of the discharge outlet and a longitudinal axis of the scroll compressor are coaxial.

17. The compressor of claim 13 , wherein the at least one compression inlet port is disposed at a location of the compression chamber at which the working fluid being compressed is between a suction pressure and between a discharge pressure.

18. The compressor of claim 13 , wherein the economizer injection inlet has a longitudinal axis, the longitudinal axis of the economizer injection inlet is parallel to a longitudinal axis of the discharge outlet.

Assignees

• Trane Int Inc

Inventors

• Lepak Derrick
• Betthauser Torin Allan

Classifications

• F25B2400/13

  Economisers · CPC title

• F25B31/026

  with compressor of rotary type · CPC title

• F04C18/0215

  where only one member is moving · CPC title

• F04C23/008

  Hermetic pumps · CPC title

• F04C29/0021 Primary

  Systems for the equilibration of forces acting on the pump (interstice adjustment other than by fluid pressure F01C21/102) · CPC title