A control system to maintain a constant flue sig as a function of the mirror in a casing with a speed signal by means of the flue gas situated

摘要

1,031,225. Reciprocating pumps. R. E. NELSON. Feb. 19, 1963 [March 19, 1962], No. 6605/63. Heading F1A. A reciprocating pump piston 70 is driven by a rod 36 attached to a diaphragm 30 which is subjected to the pressure fluctuation in the crankcase of a reciprocating engine. A duct connected to a port 12 extends into the crankcase to a point slightly below the required oil level therein (Fig. 2, not shown). A number of holes in the piston 70 co-operate with an axially moveable O-ring to act as a discharge valve. The head 35 of the piston rod 36 is held within a recess 313 in a thimble 31 so as to allow for lost motion between the diaphragm and piston. The pump operates until the end of the duct is submerged below the oil level, when reciprocation of the piston stops due to the lost motion device.