รู้จักเครื่องหมายของชุดกรองลมหรือยัง Closed-loop: Motor-return is linked directly to the pump-inlet. To maintain up pressure to the reduced pressure facet, the circuits Use a charge pump (a small gear pump) that materials cooled and filtered oil to the minimal pressure aspect. Shut-loop circuits are usually used for hydrostatic transmissions in mobile programs. https://cruztgnua.life3dblog.com/15669899/ห-วข-บวาล-ว-an-overview