Title:
COOLING DEVICE IN VACUUM PUMP
Document Type and Number:
Japanese Patent JP2001271777
Kind Code:
A
Abstract:
To adequately cool plural cooling regions in a vacuum pump with only a single cooling liquid supply system.
A cooler 44 is installed in a rotor housing 12, and a cooler 45 is installed in a rear housing 14 and a driving part 33. A cooler 46 is installed in a controller 37, and a cooler 47 is installed in an inverter 38. A cooler 48 is mounted on the circumferential surface of a motor M. The coolers 46, 47, 48 are placed midway in a main supply pipe 49. The coolers 44, 45 are placed midway in a sub-supply pipe 50. A polenoid three-way valve 51 placed in the branch part of the main supply pipe 49 and the sub-supply pipe 50 receives exiting demagnetization control of the controller 37.
Inventors:
ISHIGURE HIROYUKI
HASHIMOTO TOMOJI
IDA MASAHIRO
HASHIMOTO TOMOJI
IDA MASAHIRO
Application Number:
JP2000085889A
Publication Date:
October 05, 2001
Filing Date:
March 27, 2000
Export Citation:
Assignee:
TOYODA AUTOMATIC LOOM WORKS
International Classes:
F04B39/06; F04C23/00; F04C25/02; F04C29/04; (IPC1-7): F04C29/04; F04B39/06; F04C23/00; F04C25/02
Attorney, Agent or Firm:
Hironobu Onda (1 person outside)