GEAR PUMP WITH END PLATES OR BEARINGS HAVING SPIRAL GROOVES |
|||||||
| 申请号 | EP15765696 | 申请日 | 2015-03-19 | 公开(公告)号 | EP3120027A4 | 公开(公告)日 | 2017-12-06 |
| 申请人 | IMO IND INC; | 发明人 | CRAIG JUSTIN A; CATE JOEL E; | ||||
| 摘要 | A gear pump includes a housing, at least one gear set and a plurality of end plates. The gear set may be positioned between the end plates so that side surfaces of the gears face corresponding side surfaces of the end plates. The side surfaces of the end plates may have a plurality of spiral grooves positioned directly adjacent the side surface of the gears. The plurality of spiral grooves may have a logarithmic shape. Thus arranged, when the gears rotate, fluid in the pump is forced along the lengths of the spiral grooves, creating a local high pressure region that forces fluid between the side surfaces of the gears and the end plates, minimizing or eliminating contact therebetween. In some embodiments the plurality of spiral grooves may be positioned on bearing surfaces of the pump instead of end plates. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈