Screw-type compressor for a utility vehicle

Patent metadata

Field	Value
Publication number	US-11268513-B2
Application number	US-201716333554-A
Country	US
Kind code	B2
Filing date	Sep 19, 2017
Priority date	Sep 21, 2016
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

A screw compressor for a utility vehicle has at least one housing with at least one housing cover and with at least one rotor housing, at least one baffle plate and at least one seal. In the assembled state, an oil sump is present in the housing, wherein, with regard to the assembled state, the seal is arranged between housing cover and rotor housing and projects out of the oil sump. The seal at least partially separates the interior of the housing cover from the interior of the rotor housing. With regard to the assembled state, in the case of a substantially horizontal orientation of the screw-type compressor and in the case of a substantially horizontal orientation of the oil sump, the baffle plate is oriented substantially parallel to the upper level of the oil sump.

First claim

What is claimed is:

1. A screw compressor for a utility vehicle, comprising:
at least one housing with at least one housing cover and with at least one rotor housing;
at least one baffle plate; and
at least one seal,
wherein
in an assembled state, an oil sump is present in the housing,
in relation to the assembled state, the seal is arranged between the housing cover and the rotor housing and projects out of the oil sump,
the seal at least partially separates an interior of the housing cover and an interior of the rotor housing from one another,
in relation to the assembled state, in the case of a substantially horizontal orientation of the screw compressor and in the case of a substantially horizontal orientation of the oil sump, the baffle plate is oriented substantially parallel to an upper level of the oil sump, and
the seal is formed as a plate with perforations at least in regions inside an air space in the housing interior in the assembled state.

2. The screw compressor as claimed in claim 1 , wherein the baffle plate has at least one oil passage opening.

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

4. The screw compressor as claimed in claim 3 , wherein
the screw compressor has an air oil separator and an air oil separator inflow,
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.

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

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

7. The screw compressor as claimed in claim 1 , wherein
the baffle plate has multiple oil passage openings.

8. The screw compressor as claimed in claim 7 , wherein
the passage openings are of substantially round form.

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

10. The screw compressor as claimed in claim 1 , wherein
the baffle plate and the seal divide the interior of the screw compressor into multiple interconnected compartments.

11. The screw compressor as claimed in claim 1 , wherein
in relation to the assembled state, in the case of a substantially horizontal orientation of the screw compressor and in the case of a substantially horizontal orientation of the oil sump, the seal is arranged substantially vertically.

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

13. The screw compressor as claimed in claim 1 , wherein
the seal and the baffle plate are plugged one into the other.

14. The screw compressor as claimed in claim 1 , wherein
the seal and the baffle plate are arranged crosswise with respect to one another.

15. The screw compressor as claimed in claim 1 , wherein
the seal and the baffle plate are arranged substantially perpendicular to one another.

Assignees

• Knorr Bremse System Fuer Nutzfahrzeuge Gmbh
• Knorr Bremse Systeme Fuer Nutzfahrzeuge Gmbh

Inventors

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

Classifications

• F04C29/026 Primary

  Lubricant separation · CPC title

• F04C2240/30

  Casings or housings · CPC title

• F04C2210/221

  Air · CPC title

• F04C2210/1005

  Air · CPC title

• F04C2240/809

  Lubricant sump · CPC title