Planetary wheel plunger hydraulic pump device and method

Patent Class: Patent of Invention Patent No .: .2 Patent Right: Lanzhou University of Technology Patent Publication Date: 2005.03.09 Product Abstract: A planetary wheel plunger hydraulic pump, through the planetary gear train so that the plunger cylinder, respectively Suction pressure oil movement, each pair of plunger cylinders are connected in series with a reversing valve, the left end of the reversing valve core for a ball crown body, then control the oil passage, the ball crown body mounted on the cylinder, cylinder and cone The body is connected by a connecting rod, a cylindrical body is installed at the middle position of the connecting rod, a through hole communicating with the two ends is arranged along the axial direction of the reversing valve core, the left end of the conical valve spool is a conical body and the right end is a cylinder , Near the edge of the cylinder has a small hole communicating with the drain, the drain is only connected with the drain; the two outlet of the selector valve are connected to the oil passage, communicated with the plunger cylinder, commutated The valve inlet, return port corresponding to another oil on the road, and the oil system connected to the drain port and the pump suction port phase, the control valve of the reversing valve port and the pressure at the port interface Check valves are connected to the oil path respectively; . Company Name: Lanzhou University of Technology Tel: Fax: