The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 09, 2026

Filed:

Apr. 01, 2024
Applicant:

Mahle International Gmbh, Stuttgart, DE;

Inventors:

Brent Haseley, Niagara Falls, NY (US);

Jonathan Hammond, Churchville, NY (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
F04C 18/02 (2006.01); F04C 28/24 (2006.01); F04C 28/26 (2006.01);
U.S. Cl.
CPC ...
F04C 18/0215 (2013.01); F04C 18/0246 (2013.01); F04C 28/24 (2013.01); F04C 28/26 (2013.01); F04C 2240/30 (2013.01); F04C 2240/403 (2013.01); F04C 2240/50 (2013.01);
Abstract

An electric compressor includes a housing, refrigerant inlet port, a refrigerant outlet port, an inverter section, a motor section, a compression device, and a passive pressure system. The refrigerant inlet port is coupled to the housing and is configured to introduce the refrigerant to the intake volume. The compression device is a scroll-type compression device configured to compress the refrigerant. The refrigerant outlet port is coupled to the housing and is configured to allow compressed refrigerant to exit the scroll-type electric compressor from the discharge volume. The passive pressure system is located within the compression device and has a first end located adjacent the intake volume and a second end located adjacent the discharge volume. The passive pressure system is configured to automatically open a passage between the discharge volume and the intake volume allowing compressed refrigerant to be recycled into the intake volume.


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