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HIGH-PRESSURE PUMP
专利权人:
发明人:
BOECKING FRIEDRICH GERMANY
申请号:
IN10207/DELNP/2011
公开号:
IN2011DN10207A
申请日:
2011.12.23
申请国别(地区):
IN
年份:
2012
代理人:
摘要:
Described herein is a high-pressure pump for a fuel injection device of an internal combustion engine. The high-pressure pump includes at least one pump element having a pump piston (1) driven by a cam (2) or an eccentric disk of a drive shaft in a stroke movement. The pump piston (1) is indirectly supported on the cam (2) or the eccentric tappet of the drive shaft, by a tappet body (3) and a roller (4). Further, a roller shoe (5) is provided with a substantially partially cylindrical recess (6) for partially accommodating the roller (4) in the tappet body (3). The substantially partially cylindrical recess (6) of the roller shoe (5) forms longitudinal edges (7) with an end surface (8) of the roller shoe (5). The longitudinal edges (7) are formed in a rounded or chamfered manner, for receiving a coating (9) that extends from the recess (6) over the longitudinal edges (7). Fig. 1
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