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|1. (WO2018124727) PISTON PUMP FOR BRAKE SYSTEM OF VEHICLE|
|Applicants:||ERAE AMS CO., LTD.
|Inventors:||KIM, Jin Hee
JUNG, Sung Jae
|Title:||PISTON PUMP FOR BRAKE SYSTEM OF VEHICLE|
A piston pump comprises: a sleeve housing having a discharge hole and having a bore formed therein; a piston having an inlet flow path for introducing oil into the bore and inserted into the bore so as to reciprocate; an inlet flow valve installed so as to open and close the inlet flow path; a discharge valve cover fastened to the sleeve housing so as to surround a portion where the discharge hole is formed; a discharge valve installed to open and close the discharge hole; and a sealing member interposed between the sleeve housing and the piston to perform a sealing function. The sealing member has a release preventing protrusion that is formed so as to lock the piston, thereby preventing the piston from being released.