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1. (WO2013124103) HIGH-PRESSURE PUMP

Pub. No.:    WO/2013/124103    International Application No.:    PCT/EP2013/051113
Publication Date: Fri Aug 30 01:59:59 CEST 2013 International Filing Date: Wed Jan 23 00:59:59 CET 2013
IPC: F04B 1/04
F04B 53/02
F04B 53/16
Applicants: ROBERT BOSCH GMBH
Inventors: BOECKING, Friedrich
Title: HIGH-PRESSURE PUMP
Abstract:
A high-pressure pump (1) for conveying a fluid, more particularly fuel such as diesel, comprising preferably a drive shaft (2) having at least one cam (3), a housing (8), at least one piston (5), at least one cylinder (6) for bearing the at least one piston (5), a working chamber (29), an inlet channel (22) for introducing fluid into the working chamber (29), an outlet channel (24) for discharging fluid from the working chamber (29), a return channel (14) for draining the leakage fluid flowing between the piston (5) and the cylinder (6), wherein the return channel (14) is connected to the inlet channel (22) in a fluid-conducting manner.