Unidirectional flow pump with rotary drive

A hydraulic pump providing unidirectional hydraulic fluid flow and capable of being powered by a rotary power source and providing output to various hydraulic devices, said pump comprising:

• rotary power means driving a rotary output shaft having a rotary axis;
• rotary arm having a rotary axis output shaft attachment end and an opposite plunger pin attachment end, with said rotary output shaft being fixedly connected to said output shaft attachment end of said rotary arm;
• a plunger pin having a plunger attachment end and an opposite rotary arm attachment end, with said plunger pin attachment end of said rotary arm including bearing means thereon providing movable connection between said plunger pin attachment end of said rotary arm and said rotary arm attachment end of said plunger pin;
• a reciprocating plunger having a fluid working end, an opposite plunger pin attachment end, and a reciprocating axis, with said plunger pin attachment end of said plunger being fixedly attached to said plunger attachment end of said plunger pin at a right angle thereto;
• said plunger reciprocating within a cylinder within a plunger body, with said plunger body having a fluid control end communicating with said fluid working end of said plunger, and an opposite rotary power means attachment end;
• a removable and replaceable valve cartridge cooperating with said fluid control end of said plunger body;
• said valve cartridge including at least an inlet valve passage, an outlet valve passage, and a relief valve passage formed therein, with each said passage respectively including an inlet valve, an outlet valve, and a relief valve installed therein;
• each said valve passage including a valve seat therein and each said valve including sealing means cooperating respectively with each said valve seat;
• said rotary power means removably cooperating with an output shaft housing, with said output shaft housing being supported by at least two oppositely spaced apart and angularly displaced output shaft housing support arms, with said support arms each having an output shaft housing attachment end and an opposite plunger body attachment end, with each said output shaft housing attachment end of said support arms being fixedly connected to said output shaft housing and each said plunger body attachment end of said support arms being fixedly connected to said plunger body, with said support arms thereby providing an angular displacement between said rotary axis and said reciprocating axis of said pump, whereby;
• rotation of said output shaft by said rotary power means causes said rotary arm to rotate about said rotary axis and thereby cause said plunger pin and said plunger to rotate and reciprocate relative to said plunger body by means of said angular displacement between said rotary axis and said reciprocating axis of said pump, thereby producing hydraulic fluid flow by means of reciprocation of said plunger and control of the hydraulic fluid flow by means of said valve cartridge cooperating with said fluid control end of said plunger body.