Fluid machine, rankine cycle and control method

Details Fluid machine, rankine cycle and control method Fluid machine, rankine cycle and control method

2007-04-12

2010-11-23

Nguyen, Hoang M (Department: 3748)

Power plants

Motive fluid energized by externally applied heat

Power system involving change of state

C418S055100, C418S055600

Reexamination Certificate

active

07836696

ABSTRACT:
A fluid machine includes a fluidization portion for compressing or expanding a working fluid which is heated to be brought into a vapor phase state after circulating in a cycle, an oil storage portion for storing therein lubricant oil for lubricating a sliding surface of the fluidization portion, a lubricant oil feed passage for guiding the lubricant oil stored in the oil storage portion to a sliding portion of the fluidization portion by a flow of the working fluid, and a sliding surface pressure adjustment portion that is controlled to adjust a sliding surface pressure of the sliding portion. The working fluid flows inside the machine with the sliding surface pressure of the sliding portion decreased as compared with that in a normal operation of the fluidization portion by the sliding surface pressure adjustment portion, and thereafter the decreasing of the sliding surface pressure by the sliding surface pressure adjustment portion is released.

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Office Action dated Apr. 6, 2010 from the Chinese patent office in the corresponding patent application No. 200710097125.0 with English translation.

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