CAM DRIVE FOR DISPLACEMENT-TYPE PUMPS OR ENGINES Russian patent published in 2009 - IPC F04B1/04 

FIELD: engines and pumps.

SUBSTANCE: proposed invention relates to a cam drive for displacement-type pumps or engines. The proposed drive comprises at least one cam (HG) rigidly linked up with connecting rod gear shaft (W) and having at least one running support surface (HL) fitted off-center relative to shaft axis (XX). Aforesaid running support surface (HL) is coupled by cam (HG) with coupling cage (KG), not participating in rotation, coupled, in its turn, via transverse support (QL) including at least one blower (DG), with reciprocating drive of feed from at least one cylinder-piston assy. It comprises also at least one liquid oil lubricator (DG) communicating via a system of ducts with aforesaid transverse support (QL). Starting from connecting duct (KA) communicated with lubricator (DG), aforesaid system of ducts comprises at least one first duct (K1) passing through cam (HG) into running support surface (HL) and at least one second duct (K2) passing through the said support surface via connecting cage (KG) into transverse support (QL).

EFFECT: ruling out back flows at high-pressure phase.

5 cl, 4 dwg