Bi-directional pump

摘要

A bi-directional pump comprises a pump housing, and the pump housing comprises a pump outlet. A fluid pressurizer is positioned in the pump housing and configured to provide fluid flow selectively in a first direction and a second direction. A first passage and a second passage are positioned in the pump housing. A junction is fluidly positioned, in the pump housing, connecting the first and second passages to the pump outlet. A flow controller is positioned in the pump housing to move relative thereto, between a first position, placing the first passage, in fluid communication, with the pump outlet via the junction when the fluid pressurizer provides fluid flow in the first direction, and a second position placing the second passage, in fluid communication with the pump outlet, via the junction when the fluid pressurizer provides fluid flow in the second direction.

主权项

1. A bi-directional pump, comprising:
a pump housing, the pump housing comprising a pump outlet; a fluid pressurizer positioned in the pump housing and configured to provide fluid flow selectively in a first direction and a second direction; a first passage positioned in the pump housing and a second passage positioned in the pump housing; a junction fluidly positioned in the pump housing connecting the first and second passages to the pump outlet; a flow controller positioned in the pump housing to move relative thereto between a first position placing the first passage in fluid communication with the pump outlet via the junction when the fluid pressurizer provides fluid flow in the first direction, and a second position placing the second passage in fluid communication with the pump outlet via the junction when the fluid pressurizer provides fluid flow in the second direction; and a second travel limiter distinct from the pump housing, wherein the first passage comprises:
a first passage bend;a first passage aperture opening into the first passage bend; anda first travel limiter configured to limit the travel of the flow controller so as to space the flow controller from the first passage aperture, wherein the second passage comprises:a second passage bend; anda second passage aperture opening into the second passage bend, the second passage bend is included in the second travel limiter, and the second travel limiter is configured to limit the travel of the flow controller so as to space the flow controller from the second passage aperture, and wherein the second travel limiter comprises:
a first limiter aperture; anda second limiter aperture, the second passage bend is positioned between the first and second limiter apertures.