Device for compressing a gaseous fluid

Patent metadata

Field	Value
Publication number	US-12135025-B2
Application number	US-202318191419-A
Country	US
Kind code	B2
Filing date	Mar 28, 2023
Priority date	Apr 21, 2022
Publication date	Nov 5, 2024
Grant date	Nov 5, 2024

Abstract

A device for compressing a gaseous fluid from a low-pressure section into a high-pressure section. The device has a housing with a housing member, a compression mechanism arranged between the low-pressure section and the high-pressure section as well as a flow duct connecting the high-pressure section to the low-pressure section. The housing member is configured with a high-pressure-side port and an oil separator. An outlet opening of the port and an oil outlet are configured at diametrical ends of the oil separator. The oil outlet is arranged in the lowermost section of the oil separator in a direction of the effect of gravity and is hydraulically connected to an inlet of the flow duct. The housing member is configured with the inlet chamber such that the high-pressure-side port is able to be arranged with the axis within the inlet chamber irrespective of the arrangement of the oil outlet.

First claim

What is claimed:

1. A device for compressing a gaseous fluid from a low pressure level in a low-pressure section to a high pressure level in a high-pressure section, the device comprising a housing with a housing member, a compression mechanism arranged between the low-pressure section and the high-pressure section as well as a flow duct connecting the high-pressure section to the low-pressure section, wherein the housing member is configured with a high-pressure-side port and an oil separator, longitudinal axes of which are arranged on a common axis, wherein an outlet opening of the high-pressure-side port and an oil outlet are configured at diametrical ends of the oil separator, wherein the oil outlet is arranged in a direction of an effect of gravity in a lowermost section of the oil separator and is hydraulically connected to an inlet of the flow duct, wherein the housing member is configured with an inlet chamber into which the oil outlet is arranged to open and from which the inlet of the flow duct is arranged to branch off such that the high-pressure-side port is able to be arranged with the common axis within the inlet chamber, in particular between a first end and a second end of the inlet chamber, irrespective of an arrangement of the oil outlet, and wherein the inlet chamber has a lateral surface facing outward in a radial direction of the housing member and delimiting the inlet chamber, and wherein the inlet chamber has a shape of a partial circular ring with a bulge projecting outward from the lateral surface arranged on an outer radius, from which the inlet of the flow duct is arranged to branch off.

2. The device according to claim 1 , wherein the high-pressure-side port is able to be arranged with the common axis in a plane extending perpendicularly to a longitudinal axis of the device.

3. The device according to claim 2 , wherein the high-pressure-side port is able to be arranged with the common axis to be variably pivoted in an angular range about an axis of the oil outlet aligned parallel to the longitudinal axis of the device.

4. The device according to claim 2 , wherein the high-pressure-side port of the housing member is able to be arranged in an angular range from 30° to 150° with respect to the longitudinal axis of the device.

5. The device according to claim 1 , wherein the inlet of the flow duct is arranged to branch off from a lowermost section of the inlet chamber in the direction of the effect of gravity.

6. The device according to claim 5 , wherein the lateral surface has a gradient which is continuous with respect to the lowermost section of the inlet chamber in the direction of the effect of gravity, so that the inlet chamber is flowed through from the oil outlet to the inlet of the flow duct without backing up.

7. The device according to claim 1 , wherein a center point of the partial circular ring corresponds to a center point of the substantially circular housing member.

8. The device according to claim 1 , wherein the bulge of the inlet chamber is configured in a shape of a funnel tapering in the radial direction of the inlet chamber with a wide section and a narrow section, wherein the narrow section of the funnel forms the lowermost section of the inlet chamber in the direction of the effect of gravity.

9. The device according to one of claims 7 to 8 , wherein the oil outlet of the oil separator is arranged within the partial circular ring of the inlet chamber, which has the first end and the second end in a circumferential direction of the housing member.

10. The device according to claim 9 , wherein the partial circular ring of the inlet chamber has, between the ends, an angular range from 30° to 150°.

11. The device according to claim 1 , wherein the bulge of the inlet chamber is configured symmetrically or asymmetrically with respect to the shape of the partial circular ring.

12. The device according to claim 11 , wherein the high-pressure-side port of the housing member is able to be arranged in a symmetrical configuration of the bulge of the inlet chamber with respect to the shape of the partial circular ring in an angular range between 30° and 150° to the horizontal plane and in an angular range from −60° to 60° to the direction of the effect of gravity.

13. The device according to claim 1 , wherein the compression mechanism is configured with an immovable stator with a disk-shaped base plate and a wall configured in a scroll shape extending from a front side of the base plate as well as a movable orbiter with a disk-shaped base plate and a wall of a scroll compressor configured in a scroll shape extending from a front side of the base plate, wherein the wall of the stator and the wall of the orbiter are arranged to engage with one another.

14. The device according to claim 13 , wherein the housing member is arranged to sealingly abut a rear side of the base plate of the stator such that the inlet chamber is delimited in the direction of a longitudinal axis of the device from the rear side of the base plate.

15. The device according to claim 14 , wherein the housing member has a contact surface and the immovable stator has a formation projecting from the base plate, which are configured in correspondence with one another such that the contact surface abuts the formation and the inlet chamber is completely delimited in a radial direction by the formation of the immovable stator.

16. The device according to claim 14 , wherein the inlet chamber is configured, at least in sections, within the base plate of the stator.

17. The device according to claim 13 , wherein the flow duct is configured for recirculating the oil as a lubricant from the high-pressure section to the low-pressure section and as a component of a counterpressure system for pressing the orbiter against the stator.

18. The device according to claim 13 , wherein the housing member has a rib-shaped web which is aligned perpendicularly to the common axis and extends along a longitudinal axis of the device and is arranged within an outlet chamber.

19. The device according to claim 18 , wherein the web is configured with an extension in the direction of the longitudinal axis of the device such that a gap is formed between a free end face of the web and a rear side of the base plate of the stator.

Assignees

• Hanon Systems

Inventors

• Gutberlet Dirk
• Dursun Kadir
• Friedl Michael
• Koch Steffen

Classifications

• F04C29/026

  Lubricant separation · CPC title

• F04C29/12

  Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet · CPC title

• F05B2210/14

  Refrigerants with particular properties, e.g. HFC-134a · CPC title

• F04C2210/26

  Refrigerants with particular properties, e.g. HFC-134a · CPC title

• F05B2240/20

  Rotors · CPC title