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:
Jun. 05, 2012
Filed:
Mar. 03, 2009
Gouta Ogata, Nisshin, JP;
Haruyuki Nishijima, Obu, JP;
Etsuhisa Yamada, Kariya, JP;
Mika Gocho, Obu, JP;
Hideya Matsui, Kariya, JP;
Kenta Kayano, Kariya, JP;
Teruyuki Hano, Kariya, JP;
Gouta Ogata, Nisshin, JP;
Haruyuki Nishijima, Obu, JP;
Etsuhisa Yamada, Kariya, JP;
Mika Gocho, Obu, JP;
Hideya Matsui, Kariya, JP;
Kenta Kayano, Kariya, JP;
Teruyuki Hano, Kariya, JP;
Denso Corporation, Kariya, JP;
Abstract
An ejector device includes a nozzle having an inner wall surface defining a circular cross-sectional fluid passage extending from an inlet to a jet port. Furthermore, the fluid passage has a throat portion at a position between the inlet and the jet port, and a passage expanding portion in which the cross-sectional area of the fluid passage is enlarged from the throat portion as toward downstream. The passage expanding portion includes a middle portion in which the inner wall surface is expanded in a fluid flow direction by a first expanding angle, and an outlet portion from a downstream end of the middle portion to the jet port, in which the inner wall surface is expanded in the fluid flow direction by a second expanding angle that is larger than the first expanding angle. The ejector device can be suitably used for a refrigeration cycle apparatus.