Title:
HERMETIC CAPACITY CONTROL COMPRESSOR
Document Type and Number:
Japanese Patent JP3580933
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent the occurrence of noise due to resonance of a discharge pipe by providing an inverter device which grasps a frequency at which the discharge pipe resonates in advance and operates an electrical element at a specific frequency at which the discharge pipe does not resonate.
SOLUTION: A capacity control type reciprocating compressor A consists of a hermetic vessel 1, an electric element M built in the sealed vessel 1, and a reciprocating compression element 6. The electrical element M is operated by frequencies of power supply 11 for commercial use or frequencies by an inverter device 12. Moreover, resonance generated in a discharge pipe 9 due to the operation of the power supply 11 for commercial use is prevented by a coil spring 10. In the inverter device 12, the discharge pipe 9 is set to a specific frequency which is different from an operation frequency and does not resonate. In this way, even if frequency is dropped to the specific frequency at the time of low load for operation, the discharge pipe 9 does not generate resonance noise, and power to be consumed is saved.
Inventors:
Tatsuyuki Iizuka
Seigo Yanase
Seigo Yanase
Application Number:
JP3157096A
Publication Date:
October 27, 2004
Filing Date:
February 20, 1996
Export Citation:
Assignee:
Matsushita Cold Machinery Co., Ltd.
International Classes:
F04B39/00; F04B35/04; F04B49/06; F04C29/06; (IPC1-7): F04B49/06; F04B39/00
Domestic Patent References:
| JP5126044A | ||||
| JP4284191A | ||||
| JP4068264A | ||||
| JP61241477A | ||||
| JP53089010A | ||||
| JP61272483A | ||||
| JP59150990U |
Other References:
冷凍空調便覧,日本,社団法人日本冷凍協会,1993年 6月25日,第5版,p.374-376
川平睦義,密閉形冷凍機,日本,社団法人日本冷凍協会,1981年 7月30日,p.144-146
川平睦義,密閉形冷凍機,日本,社団法人日本冷凍協会,1981年 7月30日,p.144-146
Attorney, Agent or Firm:
Fumio Iwahashi
Tomoyasu Sakaguchi
Hiroki Naito
Tomoyasu Sakaguchi
Hiroki Naito