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:
Jan. 10, 2012
Filed:
Apr. 27, 2009
Jin-wook Jang, Seoul, KR;
Yong-taek Hwang, Pyeongtaek-Si, KR;
Young-seok Choi, Gwangmyeong-si, KR;
Kyoung-yong Lee, Cheonan-si, KR;
Uk-hee Jeong, Seoul, KR;
Murase Seiji, Chita-gun, JP;
Jin-Wook Jang, Seoul, KR;
Yong-Taek Hwang, Pyeongtaek-Si, KR;
Young-seok Choi, Gwangmyeong-si, KR;
Kyoung-Yong Lee, Cheonan-si, KR;
Uk-Hee Jeong, Seoul, KR;
Murase Seiji, Chita-gun, JP;
Hyundam Industrial Co., Ltd., , KR;
Abstract
A random pitch impeller for a fuel pump has number of blades. An incremental angle of the blades is set by the expression: where ΔθI is the incremental angle between the blades, N is the total number of blades (N=2, 3, 5, 7, 11, 13, 17, . . . ), Am is the distribution magnitude of the inter-blade interval (equally divided angle) (0<Am<360/N), i is the order of the blade (i=1, 2, 3, . . . , N), and Pand Pare the factors exerting an influence on the cycle (0<P<N, and 0≦P≦N). The incremental angle has maximum and minimum values a difference of which satisfies the expression: 2°≦MAX−MIN≦6°, where MAX is the maximum value, and MIN is the minimum value of the incremental angle.