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1. (WO2018108350) PUMP, IN PARTICULAR A HIGH-PRESSURE PUMP OF A FUEL INJECTION SYSTEM

Pub. No.:    WO/2018/108350    International Application No.:    PCT/EP2017/075585
Publication Date: Fri Jun 22 01:59:59 CEST 2018 International Filing Date: Tue Oct 10 01:59:59 CEST 2017
IPC: F02M 59/10
F04B 1/04
Applicants: ROBERT BOSCH GMBH
Inventors: TRAUBE, Ilja
Title: PUMP, IN PARTICULAR A HIGH-PRESSURE PUMP OF A FUEL INJECTION SYSTEM
Abstract:
A pump (1), in particular a high-pressure pump of a fuel injection system, having a cylinder head assembly (3) and a tappet assembly (9). The tappet assembly (9) has a pump piston (13) which, in interaction with a drive device, is moved translationally up and down by the tappet assembly (9) in the direction of a longitudinal axis (8) of the tappet assembly (9). The tappet assembly (9) also has a tappet body (21), the tappet body (21) being in contact with the drive device, in particular with a cam (11) of a camshaft (5). The tappet body (21) has a guide groove (18) which is in contact with a guide pin (4), preventing rotation of the tappet body (21) about the longitudinal axis (8). According to the invention, the guide pin (4) is supported in the guide groove (18) of the tappet body (21) by means of a dihedron (17).