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:
Nov. 27, 2018
Filed:
Oct. 06, 2015
Denso Corporation, Kariya, Aichi-pref., JP;
Norihiro Hayashi, Kariya, JP;
Kiyomori Kobayashi, Kariya, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A common width direction, along which a passage width of a communication passage section and a passage width of a pressurizing passage are defined, is perpendicular to an extending direction of a flow restricting passage section. A first passage wall surface and a second passage wall surface, which define the communication passage section therebetween, are opposed to each other in the common width direction. The flow restricting passage section opens in the first passage wall surface. The second passage wall surface is concavely curved relative to the first passage wall surface toward the flow restricting passage section, so that the passage width of the communication passage section is progressively reduced toward the flow restricting passage section within a predetermined range that is equal to or smaller than the passage width of the pressurizing passage.