Invention Grant
- Patent Title: Method of controlling a reciprocating linear motor
- Patent Title (中): 控制往复式线性电机的方法
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Application No.: US10898808Application Date: 2004-07-26
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Publication No.: US06954040B2Publication Date: 2005-10-11
- Inventor: Ian McGill , Zhuang Tian
- Applicant: Ian McGill , Zhuang Tian
- Applicant Address: NZ Auckland
- Assignee: Fisher & Paykel Appliances Limited
- Current Assignee: Fisher & Paykel Appliances Limited
- Current Assignee Address: NZ Auckland
- Agency: Trexler, Bushnell, Giangiorgi, Blackstone & Marr, Ltd.
- Priority: NZ515578 20011120
- Main IPC: F04B49/06
- IPC: F04B49/06 ; F04B35/04 ; H02K33/00
Abstract:
A free piston gas compressor comprising a cylinder, a piston reciprocable within the cylinder and a reciprocating linear electric motor derivably coupled to the piston having at least one excitation winding. A measure of the reciprocation time of the piston is obtained, any change in the reciprocation time is detected and the power input to said excitation winding is adjusted in response to any detected change in reciprocation time.
Public/Granted literature
- US20040263005A1 Method of controlling a reciprocating linear motor Public/Granted day:2004-12-30
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