Fuel pump |
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| 申请号 | US15154064 | 申请日 | 2016-05-13 | 公开(公告)号 | US09982672B2 | 公开(公告)日 | 2018-05-29 |
| 申请人 | DENSO CORPORATION; | 发明人 | Hiromi Sakai; Daiji Furuhashi; | ||||
| 摘要 | A fuel pump includes an inner rotor, an outer rotor, a casing, and a housing. The inner rotor includes outward teeth. The outer rotor includes inward teeth geared with the outward teeth. The casing houses the inner rotor and the outer rotor, and forms a variable capacity pump chamber between the inward teeth and the outward teeth. The housing is formed in a cylindrical shape and includes a cylindrical inner portion, the casing being press fit into the cylindrical inner portion. A recessed portion is formed at a predetermined position in a circumferential direction of an outer circumferential surface of the casing, the recessed portion being recessed toward a radial direction center of the outer circumferential surface. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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