A pump arrangement which has a piston which is reciprocably movable in response to a directional control valve, a pilot valve which, in response to the piston, operates the directional control valve and an index valve operable to inhibit or allow the pilot valve to function.
申请公布号
ZA200902836(B)
申请公布日期
2010.03.31
申请号
ZA20090002836
申请日期
2009.04.23
申请人
AFRICAN EXPLOSIVES LIMITED
发明人
BUEHRMANN, RUDOLPH TEODOR;BUEHRMANN, RUDOLPH;NIEMANN, FRANK