Power plants – Motive fluid energized by externally applied heat – Power system involving change of state
Reexamination Certificate
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.
Asa Hironori
Uno Keiichi
Utida Kazuhide
DENSO CORPORATION
Harness Dickey & Pierce PLC
Nguyen Hoang M
Nippon Soken Inc.
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