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:
Jan. 24, 2012
Filed:
Sep. 23, 2008
Zhijun Zhang, Zhejiang Province, CN;
Feng Chen, Zhejiang Province, CN;
Yong Pan, Zhejiang Province, CN;
Guojiang Shao, Zhejiang Province, CN;
Zhijun Zhang, Zhejiang Province, CN;
Feng Chen, Zhejiang Province, CN;
Yong Pan, Zhejiang Province, CN;
Guojiang Shao, Zhejiang Province, CN;
Zhejiang Sanhua Climate and Appliance Controls Group Co., Ltd, Chengguan Town, CN;
Abstract
The present invention provides an oil-returning device and a accumulator, the oil-returning device including an outlet pipe and a filtering component, the outlet pipe having an bent arc portion which is provided with a positioning hole, the filtering component including a filtering screen and a filtering screen base with an oil-returning orifice, and being fixedly installed in the positioning hole, wherein an effective cross section area Sn of an inner space of the outlet pipe at a position where the filtering component is installed is in a range of 50%˜90% of an original effective cross section area Sof the inner space of the untreated outlet pipe at a position where the filtering component is to be installed. The accumulator includes a hermetically sealed container, a inlet pipe and the oil-returning device, wherein in the case of a given diameter of the outlet pipe and a diameter of the oil-returning orifice, appropriate oil-returning capacity will be attained by setting the effective cross section area of the inner space at the oil-returning orifice of the outlet pipe, and thus the production has significant versatility and can meet the requirements of various refrigeration systems.