According to the present invention, a pump device is disclosed. The pump device comprises: a piston unit provided to move, wherein a flow path is formed to guide movement of a fluid; a sleeve unit in which a compression chamber is formed to communicate with the flow path, the piston unit is inserted to move, and a discharge hole unit through which the fluid is introduced and discharged in accordance with movement of the piston unit is provided; a flow path opening and closing unit opening and closing the flow path; and a communicating unit mounted in the flow path opening and closing unit to divide the compression chamber into a first sub-compression chamber and a second sub-compression chamber, and enabling the first sub-compression chamber and the second sub-compression chamber to communicate with each other in accordance with pressure difference between the first sub-compression chamber and the second sub-compression chamber.
펌프 장치에 관한 발명이 개시된다. 펌프 장치는, 유체의 이동을 안내하는 유로가 형성되며, 이동 가능하게 구비되는 피스톤부와, 유로와 연통되는 압축실이 형성되고, 피스톤부가 이동 가능하게 삽입되며, 피스톤부의 이동에 따라 유체가 입출되는 배출홀부가 구비되는 슬리브부와, 유로를 개폐하는 유로개폐부와, 유로개폐부에 장착되어 압축실을 제1서브압축실과 제2서브압축실로 구획하며, 제1서브압축실과 제2서브압축실의 압력차에 따라 제1서브압축실과 제2서브압축실을 연통시키는 연통부를 포함하는 것을 특징으로 한다.
PUMP DEVICE
펌프 장치
2019-07-15
Patent
Electronic Resource
Korean
IPC: | B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF |