| 摘要 |
PURPOSE:To generate and feed high pressure oil favorably by opening or closing a pilot valve by use of a part of a pressure mass introduced into a low pressure cylinder. CONSTITUTION:When a stop valve 10 is opened, a pressure mass of high pressure gas goes into a pilot valve 12 through a low pressure gas feed pipe 11, and depending on the position of the spool within a valve 12, enters one side of a low pressure cylinder 17 of an oil pump 13 through a primary feed and exhaust pipe 15 to move a low pressure piston 16. A high pressure piston 18 interlocked with the piston 16 moves in the same direction, and pushes out under pressure the lubricating oil fed through an oil feed pipe 5 from an oil tank 3 in a high pressure cylinder 19, then feeds the oil to a thrust bearing 2 through a high pressure oil feed passage 4. The lubricating oil delivered through the oil feed pipe 5 is sucked into the cylinder 19 on the opposite side to the moving direction of the piston 16. As a result, the high pressure oil is continuously exhausted out of the pump 13 by reciprocating motions of the piston 18. |
