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:
Sep. 28, 2021
Filed:
Mar. 23, 2018
Oet Gmbh, Lustenau, AT;
OET GmbH, Lustenau, AT;
Abstract
The invention relates to a displacement machine according to the spiral principle, in particular a scroll compressor, with a high-pressure zone which comprises a high-pressure chamber, with a low-pressure chamber and with an orbiting displacement spiral, which engages into a counter spiral such that between the displacement spiral and the counter spiral compression chambers are formed, in order to receive a working medium, wherein between the low-pressure chamber and the displacement spiral a counter pressure chamber is formed. According to the invention, the displacement spiral has only one passage, which at least temporarily produces a fluid connection between the counter pressure chamber and at least one of the compression chambers, wherein the passage is formed in such a portion of the displacement spiral in which the passage in the activated state of the displacement machine is opened on reaching of 85%-100%, in particular of 90%-100%, in particular of 95%, of the relative compression chamber volume, and remains opened during a subsequent rotation, after opening, of the displacement spiral about a rotational angle of 120°-360°, in particular of 255°-315°, in particular of 270°.