Screw compressor for a utility vehicle

Patent metadata

Field	Value
Publication number	US-11359630-B2
Application number	US-201716333395-A
Country	US
Kind code	B2
Filing date	Sep 19, 2017
Priority date	Sep 21, 2016
Publication date	Jun 14, 2022
Grant date	Jun 14, 2022

Abstract

A screw compressor for a utility vehicle includes at least one housing, at least one housing cover and at least one rotor housing. At least one seal is provided, wherein, when assembled, there is an oil sump in the housing, and the seal is arranged between the housing cover and the rotor housing and projects out of the oil sump with respect to the assembled state. The seal is formed as a sealing plate and has multiple passage openings.

First claim

What is claimed is:

1. A screw compressor for a utility vehicle, comprising:
a housing having at least one housing cover and at least one rotor housing; and
at least one seal formed as a sealing panel with multiple passage openings, the at least one seal being located between vertically-oriented surfaces of the at least one housing cover and the at least one rotor housing,
wherein the multiple passage openings are arranged in a vertically-oriented portion of the seal such that oil is passable between the at least one rotor housing and the at least one housing cover horizontally through the multiple passage openings.

2. The screw compressor as claimed in claim 1 , wherein
the seal divides an interior of the housing asymmetrically into at least one first region and at least one second region, wherein the first region is smaller than the second region.

3. The screw compressor as claimed in claim 2 , further comprising:
an air/oil separator and an air/oil separator inflow,
wherein
the air/oil separator inflow opens into the housing interior of the screw compressor, and
the passage openings of the seal are arranged in the vicinity of the air/oil separator inflow.

4. The screw compressor as claimed in claim 3 , wherein
the air/oil separator inflow is formed in the housing cover.

5. The screw compressor as claimed in claim 3 , wherein
the air/oil separator inflow opens into the first region of the housing interior.

6. The screw compressor as claimed in claim 1 , wherein
the passage openings are of substantially round form.

7. The screw compressor as claimed in claim 1 , wherein
the passage openings are of circular form.

8. The screw compressor as claimed in claim 1 , wherein
the seal is formed at least in regions as a perforated plate, with the regions situated in the housing interior in the assembled state.

9. The screw compressor as claimed in claim 1 , wherein
the seal has a baffle plate passage opening.

10. The screw compressor as claimed in claim 1 , wherein
the seal has screw bolt passage openings which are provided for passage of screw bolts by which the seal, housing cover and rotor housing are screwed together.

Assignees

• Hebrard Gilles
• Marescot Jean Baptiste
• Mellar Joerg
• Weinhold Thomas
• Knorr Bremse Systeme Fuer Nutzfahrzeuge Gmbh

Inventors

• Hebrard Gilles
• Marescot Jean-Baptiste
• Mellar Joerg
• Weinhold Thomas

Classifications

• F04C23/008 Primary

  Hermetic pumps · CPC title

• F04C27/008

  for other than working fluid, i.e. the sealing arrangements are not between working chambers of the machine · CPC title

• F05B2210/12

  gaseous, i.e. compressible · CPC title

• F05B2210/16

  Air or water being indistinctly used as working fluid, i.e. the machine can work equally with air or water without any modification · CPC title

• F04C29/04

  Heating; Cooling (of machines or engines in general F01P); Heat insulation (heat insulation in general F16L59/00) · CPC title