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:
Dec. 06, 2022

Filed:

Jul. 10, 2019
Applicant:

Emerson Climate Technologies (Suzhou) Co., Ltd., Jiangsu, CN;

Inventors:

Hongfei Shu, Suzhou, CN;

Donghui Yang, Suzhou, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01C 21/04 (2006.01); F01C 21/18 (2006.01);
U.S. Cl.
CPC ...
F01C 21/04 (2013.01); F01C 21/18 (2013.01); F05D 2250/71 (2013.01);
Abstract

An expander and a fluid circulation system comprising same are disclosed. The expander comprises a housing, an expansion mechanism, an exhaust pipe, an oil sump and a lubricant discharge channel. The expansion mechanism is provided in the housing to expand a high-pressure fluid into a low-pressure fluid. The exhaust pipe discharges the low-pressure fluid out of the expander and comprises an end portion assembled in a first opening of the housing and provided with an exhaust port; the low-pressure fluid enters the exhaust pipe via the exhaust port. The oil sump stores a lubricant in the housing. The lubricant discharge channel discharges the lubricant in the oil sump into the exhaust pipe and/or an external system pipeline and comprises an inlet end having an inlet located at a predetermined oil level of the oil sump and an outlet end having an outlet.


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