公开(公告)号：US20170096998A1

公开(公告)日：2017-04-06

申请号：US15381004

申请日：2016-12-15

申请人： Caterpillar Inc.

发明人： Alan Ray STOCKNER ,  Aaron M. BROWN ,  Sridhar THANGASWAMY ,  Glenn B. COX ,  John Jay TRUHAN, JR. ,  Michael J. POLLARD ,  John P. MCDONNEL

IPC分类号： F04B53/14 ,  F04B53/16 ,  F04B53/00 ,  F04B19/22 ,  F04B15/08

CPC分类号： F04B53/14 ,  F04B15/08 ,  F04B19/22 ,  F04B53/007 ,  F04B53/166 ,  F04B2015/082 ,  F04B2015/0822 ,  F04B2015/0824 ,  F04B2015/0826 ,  F05C2201/0406 ,  F05C2201/046 ,  F05C2201/0466 ,  F05C2203/08 ,  F05C2203/0813 ,  F05C2203/0882 ,  F05C2211/00 ,  F05C2225/04 ,  F05C2251/14 ,  F05C2253/06 ,  F05C2253/12 ,  F16J1/006 ,  F16J1/01

摘要： A pumping mechanism is disclosed. The pumping mechanism may include a barrel formed of a barrel substrate and including a first end surface, a second end surface opposite the first end surface, and a bore between the first and second end surfaces. Each of the first and second end surfaces and the bore is coated with a metal plating. The pumping mechanism may further include a plunger formed of a plunger substrate and configured to be slidably disposed in the bore in barrel, the plunger substrate having a tribological coating.