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.
Patent No.:
Date of Patent:
Oct. 13, 2020
Filed:
Mar. 09, 2018
Oet Gmbh, Lustenau, AT;
OET GmbH, Lustenau, AT;
Abstract
The invention relates to a positive-displacement machine according to the spiral principle, particularly a scroll compressor, having a high-pressure region, which comprises a high-pressure chamber, furthermore having a low-pressure chamber and an orbiting positive-displacement spiral, which engages into a counterpart spiral in such a manner that compression chambers are formed between the positive-displacement spiral and the counterpart spiral, in order to accommodate a working medium, wherein a counterpart-pressure chamber is constructed between the low-pressure chamber and the positive-displacement spiral. According to the invention, the positive-displacement spiral has at least two passages, which at least temporarily produce a fluid connection between the counterpart-pressure chamber and at least one of the compression chambers, wherein a first passage is essentially constructed in a central section of the positive-displacement spiral and at least one second passage is constructed in the initial region of the positive-displacement spiral.