Title:
CLOSED TYPE MOTOR-DRIVEN COMPRESSOR
Document Type and Number:
Japanese Patent JP3205122
Kind Code:
B2
Abstract:
PURPOSE: To provide a closed type motor-driven compressor capable of reducing the dead volume of a delivery port by the protrusion of a piston while the restrictions of suction and delivery lines, etc., are eliminated, suppressing the lowering of loss and capacity due to re-expansion of compression gas, and increasing the efficiency of a compressor.
CONSTITUTION: In a closed type motor-driven compressor of which compressing mechanism part comprises a cylinder 4, a piston 2 which reciprocates in the cylinder 4, a valve seat plate 5 in which suction and delivery ports 7 and 6 are formed, suction and delivery valves 16 and 17 provided on the valve seat plate 5, a passage system for separating a gas suction line from a gas delivery line, and a mechanism part for converting the rotary movement of a crankshaft 1 into the linear reciprocating motion of the piston 2, a protruded part 2a is formed at the top end of the piston 2. Then the protruded part 2a is formed at a position eccentric from the center of the piston so that it comes into a delivery port 6 formed in the valve seat plate 5.
Inventors:
Yasuhiro Ohshima
Kenji Ogino
Hiromasa Uchida
Koji Yamamoto
Kazuhiro Suzuki
Hiroyasu Owada
Kenji Ogino
Hiromasa Uchida
Koji Yamamoto
Kazuhiro Suzuki
Hiroyasu Owada
Application Number:
JP11670793A
Publication Date:
September 04, 2001
Filing Date:
May 19, 1993
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
F04B39/00; F04B25/00; F04B25/04; F04B27/02; F04B39/10; (IPC1-7): F04B39/00; F04B39/10
Domestic Patent References:
| JP5752691A | ||||
| JP518358A |
Attorney, Agent or Firm:
Katsuo Ogawa (2 outside)
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