Title:
燃料ポンプ
Document Type and Number:
Japanese Patent JP4271501
Kind Code:
B2
Abstract:
A fuel pump in which fuel can pass smoothly through through-holes of an impeller is taught. Through-holes communicate concavities formed in upper and lower faces of the impeller. These through-holes are formed at an inner side region within the concavities. When the impeller rotates, the rotational speed of the portion provided with the through-holes is slower than in the case where these through-holes are formed at the outer side region within the concavities. As a result, the fuel in the vicinity of the through-holes within the concavity has a slower rotational speed, and consequently the fuel passes easily through the through-holes.
Inventors:
Masanori Ikeya
Application Number:
JP2003162785A
Publication Date:
June 03, 2009
Filing Date:
June 06, 2003
Export Citation:
Assignee:
Aisan Industry Co., Ltd.
International Classes:
F02M37/10; F02M37/08; F04D7/02; F04D5/00; F04D29/22; F04D29/24; H01L27/10
Domestic Patent References:
| JP9079168A | ||||
| JP2002266784A |
Attorney, Agent or Firm:
Kaiyu International Patent Office