Title:
【発明の名称】自由ピストン圧縮機のピストン位置の測定方法及び装置
Document Type and Number:
Japanese Patent JP3413658
Kind Code:
B2
Abstract:
A method of measuring the distance at closest approach between the piston of a free piston compressor and the cylinder head. The method derives measurements of both the alternating and average components of piston position from direct measurements of the voltage and current applied to the linear permanent magnet motor that drives the piston, and thus eliminates any requirement for an additional position sensor located within the compressor.
Inventors:
Redditch, Robert Davryu
Application Number:
JP52207094A
Publication Date:
June 03, 2003
Filing Date:
March 04, 1994
Export Citation:
Assignee:
Sunpower Incorporated
International Classes:
F04B31/00; F04B35/04; F04B49/06; G01D5/20; G01D5/242; G05D3/00; F04B49/00; (IPC1-7): F04B49/00; F04B31/00; G01D5/20; G01D5/242; G05D3/00
Domestic Patent References:
| JP58210379A | ||||
| JP4877313A | ||||
| JP582021U | ||||
| JP58139589U |
Attorney, Agent or Firm:
Heikichi Odashima
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