SCREW COMPRESSOR

Japanese Patent JP3731399

B2

PROBLEM TO BE SOLVED: To reduce the number of part items of bearing structure of a gate rotor and to increase a reliability and efficiency by decreasing a temperature difference between a cylinder and a screw rotor to reduce a difference in thermal expansion.
SOLUTION: This compressor is formed so that one shaft part 53 of a gate rotor main body 52 is supported by a cantilever bearing structure B1 and the gate rotor 51 is canti-levered on the gate rotor main body 52. A high-pressure chamber 55 extending from a delivery side to a suction side of the gate roller 51 is formed, and a cylinder 25 is heated by hot delivery gas inside the high- pressure chamber 55. By this, seizure of the screw rotor to the cylinder 25 or so-called a galling is eliminated, since a difference in thermal expansion between the screw rotor and the cylinder 25 is reduced, to increase reliability. In addition, a clearance between the screw rotor and cylinder 25 is reduced to increase an efficiency.

JP2011196223	SINGLE SCREW COMPRESSOR
JPS6258078	CAPACITY CONTROLLER FOR SCREW COMPRESSOR
WO/2012/042891	SCREW COMPRESSOR

Yoneda Hiroyuki
Takashi Inoue
Takanori Suzuki

JP24303299A

January 05, 2006

August 30, 1999

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Daikin Industries, Ltd.

F04C18/52; F04C29/00; F04C29/04; (IPC1-7): F04C18/52; F04C29/00

JP58013102A
JP50074218A
JP47002979A
JP56002491A
JP58047193A
JP60219494A
JP63190585U
JP4143491A
JP4175488A
JP2146288A

Aoyama Aoi
Hiroshi Yamazaki

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