Title:
Fuel pump
Document Type and Number:
Japanese Patent JP6135593
Kind Code:
B2
Abstract:
An engaging hole-of an impeller, which receives a shaft, is formed by an impeller first planar surface, which is contactable with a shaft first planar surface, an impeller second planar surface, which is contactable with a shaft second planar surface, and an impeller first curves surface-and an impeller second curved surface, which connect between the shaft first planar surface-and the shaft second planar surface. A first groove and a second groove, which are communicated with the engaging hole, are formed in the impeller first curved surface and the impeller second curved surface, respectively. When the shaft first planar surface contacts the impeller first planar surface upon rotation of the shaft in one direction, the first groove is deformed by an applied force. Thereby, the shaft second planar surface and the impeller second planar surface contact with each other.
Inventors:
Hiromi Sakai
Yuji Hidaka
Yuji Hidaka
Application Number:
JP2014095859A
Publication Date:
May 31, 2017
Filing Date:
May 07, 2014
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F04D5/00; F02M37/08; F02M37/10
Domestic Patent References:
| JP2003532010A | ||||
| JP2003220578A | ||||
| JP60156999A | ||||
| JP2007315692A | ||||
| JP58006991U | ||||
| JP63177693U | ||||
| JP50145005U | ||||
| JP62012791U |
Attorney, Agent or Firm:
Masaki Hattori