Title:
フリーピストン型スターリング冷凍機
Document Type and Number:
Japanese Patent JP7143272
Kind Code:
B2
Abstract:
A free piston Stirling refrigerator of the present invention has a cylinder provided inside a casing; a piston and a displacer that are provided in a way such that they are capable of reciprocating inside the cylinder; a linear motor for reciprocating the piston; and a control unit for controlling the operation of the linear motor. Particularly, the control unit has an inverter circuit for generating an alternating current with a given frequency and then supplying the alternating current to the linear motor; a current detection circuit for detecting the current outputted from the inverter circuit; and a control circuit for controlling the output from the inverter circuit based on a turbulence in the current detected by the current detection circuit. Thus, collisions between the piston and the displacer (i.e. hitting) can be restricted through an inexpensive configuration and a simple control.
Inventors:
Inoue Mineyuki
Kazuya Tsuji
Atsushi Komada
Kazuya Tsuji
Atsushi Komada
Application Number:
JP2019232614A
Publication Date:
September 28, 2022
Filing Date:
December 24, 2019
Export Citation:
Assignee:
Twinbird Corporation
International Classes:
F25B9/14; H02M7/48
Domestic Patent References:
| JP2003014322A | ||||
| JP2002285958A | ||||
| JP2017169444A |
Previous Patent: brake pedal device
Next Patent: TRANSMISSION DESTINATION REGISTER PAPER AND FACSIMILE EQUIPMENT USING THE SAME
Next Patent: TRANSMISSION DESTINATION REGISTER PAPER AND FACSIMILE EQUIPMENT USING THE SAME