Title:
エンジン駆動圧縮機の容量制御装置
Document Type and Number:
Japanese Patent JP7284627
Kind Code:
B2
Abstract:
To provide an engine driving compressor with low fuel consumption and excellent startability.SOLUTION: A pressure receiving chamber 61 of a speed regulator 60 is communicated with a secondary side of a pressure regulator 70 connected to a receiver tank 32 on a primary side, and a valve closing pressure receiving chamber 51 of an intake control valve 50 is serially communicated with the pressure receiving chamber via a throttle 91. Other end 84b of a bypass flow path 84 bypassing a pressure regulator and communicating one end 84a with the receiver tank 32 is parallely communicated with the pressure receiving chamber of the speed regulator and the valve closing pressure receiving chamber of the intake control valve. An on-off valve 41 is provided to the bypass flow path 84 to form a starting load loosening mechanism 4. At the time of closing the on-off valve at which a capacity is controlled by compressed gas passing through the pressure regulator, and at the time of shifting to a non-load operation, after the rotation speed of the engine is reduced, fuel consumption improves by closing an intake port 21. At the starting time at which the capacity is controlled by the compressed gas passing through the bypass flow path 84, after the intake port of a compressor body is closed, the rotation speed of the engine is reduced and startability improves.SELECTED DRAWING: Figure 5
Inventors:
Masaru Hayakawa
Ryotaro Nagayoshi
Ryotaro Nagayoshi
Application Number:
JP2019082280A
Publication Date:
May 31, 2023
Filing Date:
April 23, 2019
Export Citation:
Assignee:
Hokuetsu Industry Co., Ltd.
International Classes:
F04B49/03
Domestic Patent References:
| JP2552026Y2 | ||||
| JP2002168177A | ||||
| JP2003222081A | ||||
| JP6023755Y2 |
Attorney, Agent or Firm:
Ogura Patent Office
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