Oil cooled piston,申请号US19750631247-传众专利搜索

Oil cooled piston

申请公布号：US4056044(A)

申请号：US19750631247

申请日期：1975.11.12

申请公布日期：1977.11.01

申请人：

CATERPILLAR TRACTOR CO.

发明人：KAMMAN, KENNETH R.;JACOBSON, WAYNE D.

分类号：F02F3/00;F04B39/00;F04B39/02;F16C5/00;F16J1/02;F16J1/14;(IPC1-7):F01B31/10

主分类号：F02F3/00

摘要：An improved piston assembly including a generally cylindrical piston body having a crown, a depending relatively short ring land and a central cavity comprising inner and outer chambers. Seal receiving grooves are disposed in the ring land and are adapted to receive sealing rings, one of the grooves being specifically adapted to receive an oil ring. A generally cylindrical skirt body is provided and has an end in proximity to the piston body adjacent the ring land and is aligned with the piston body. An annular groove in the end of the skirt body opens into the outer chamber of the central cavity for receiving cooling oil draining from the cavity and for splashing the cooling oil against the interior of the piston body to cool the same. Bores from the oil ring receiving groove convey oil from such groove to the annular groove.