摘要 |
498,118. Pumps. AUTO UNION AKT.- GES. April 19, 1938, No. 11796. Convention date, April 17, 1937. Addition to 446,144. [Class 7 (ii)] In a fuel - supply system as described in the parent Specification, the lubricating oil pump is provided with a release valve 8 which only opens to supply oil through a connection 5 to the engine after the oil pressure built up in a pipe 7 is sufficient to couple the compressor to an engine driven shaft. The valve 8 opens at a slightly higher pressure than the release valve 4 which controls the pressure of the engine lubricating oil. |