Device for lubricating two-stroke cycle internal combustion engines using light fuel

Claim 1

A VALVELESS PLUNGER TYPE OIL PUM FOR LUBRICATING INTERNAL COMBUSTION ENGINES COMPRISING A PUMP HOUSING AND A CYLINDER, A PUMP PLUNGER WITH SLOT MEAN DISPOSED IN SAID CYLINDER FOR SIMULTANEOUS RECIPROCATING AND ROTARY MOVEMENT, SAID CYLINDER AND PLUNGER FORMING APRESSURE CHAMBER, A FUEL-OIL MIXING CHAMBER IN SAID CYLINDER HAVING INLET PASSAGES DISPOSED APPROXIMATELY 180* APART AND ADAPTED TO COMMUNICATE WITH SAID SLOT MEANS, OIL INLET PASSAGE MEANS DISPOSED APPROXIMATELY 90* FROM SAID CHAMBER INLET PASSAGES, FUEL INLET PASSAGE MEANS DISPOSED APPROXIMATELY 90* FROM SAID MIXING CHAMBER INLET PASSAGES AND APPROXIMAELY 180* FROM SAID OIL PASSAGE MEANS, SAID OIL AND FUEL MEANS ADAPTED TO COMMUNICATE WITH SAID SLOT MEANS, MEANS FOR SIMULTNAEOUSLY RECIPORCATING AND ROTATING SAID PLUNGER TO COMMUNICATE SAID PRESSURE CHAMBER AND SLOT MEANS FIRST WITH SAID OIL MEANS, THEN WITH ONE OF SAID INLET PASSAGES TO DELIVER OIL TO SAID MIXING CHAMBER, THEN WITH SAID FUEL PASSAGE MEANS, AND THEN WITH THE OTHER INLET PASSAGE TO DELIVER FUEL THERETO, AND OUTLET MEANS FOR DISCHARGING FUEL AND OIL FROM SAID MIXING CHAMBER, WHEREBY SAID PUMP PROVIDES SUCCESSIVE SUCTION AND SUCCESSIVE DELIVERY STROKES.