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:
Feb. 20, 2007
Filed:
Mar. 17, 2005
Gota Ogata, Oobu, JP;
Hirotsugu Takeuchi, Nagoya, JP;
Yasuhiro Yamamoto, Anjo, JP;
Denso Corporation, Kariya, JP;
Abstract
The invention relates to a variable capacity type ejector capable of more precisely adjusting a flow rate of refrigerant in a range in which a displacement means can displace a needle and also capable of increasing a flow rate of refrigerant when the needle valve is fully opened. In the needle valvewhich changes the degree of opening (throat portion area) of the nozzlewhen the needle is displaced in the axial direction R of the throttle portion, the second tapered portionis formed on the throat portionside of the first tapered portion, and the taper angle θof the second tapered portionis formed larger than the taper angle θof the first tapered portion