This paper introduces the conditional control of pump feeding lube into bearing when the submarine dives over-deeply or the propeller’s speed is too small, the high pressure pump must be turned on automatically.
The lathe fixture used for boring 10CY141B type high pressure oil pump body parts with seven column holes is designed. Its structures and the working principles are analysed. This fixture can meet the needs of batch production for the small and medium sized factories.
High pressure common rail electronic control system is the most potential technology of diesel engine, and highpressure pump is critical component of such system. By analysis and comparison of several high pressure pumps usedprevailingly, introduction is given to the composition, structure and performance of high pressure pumps, and key points fordesign are purposed.