An Improved Means of Delivering Lubricant to a Reciprocating Piston Engine.

摘要

117,100. Pullin, C. G. May 18, 1917. Force-feed lubricating.-A reciprocating engine is lubricated by oil forced by a pump g to a passage k in the crankshaft bearing. This passage ends in a groove which may be in the bearing on the shaft, and the groove communicates with a passage m in the shaft. The passage m emerges at N on the surface of the crank-pin, where it intermittently registers with a passage P in the connecting rod. The passage P delivers oil either on the surface of the gudgeon pin or to its interior, according as it is loose or fixed within the connecting-rod end Q. The piston may be lubricated by fixing a hollow gudgeon pin in the end of the connecting rod and the gudgeon pin bearings with pipes U, which pass through the piston wall V and end in a recess W on the surface of the piston. The crank-shaft bearings are lubricated by an excess of oil from the groove in the crankshaft bearing and hole N, and surplus oil collects in a sump R. The sump may be connected by a; passage r to a second groove in the crank-shaft bearing communicating periodically with a passage t in the shaft leading to other parts of the engine. The oil i.s forced from the sump R by pulsating fluid pressure in the crank-case. This pressure also actuates the pump g through a piston G.