Air compression device

Patent metadata

Field	Value
Publication number	US-2016003246-A1
Application number	US-201514748801-A
Country	US
Kind code	A1
Filing date	Jun 24, 2015
Priority date	Jul 3, 2014
Publication date	Jan 7, 2016
Grant date	—

Abstract

An air compression device is provided with a rotary compressor, a discharge flow channel connected to a discharge portion of the compressor, a release flow channel disposed to be connectable to the discharge flow channel, and an operation control unit configured to perform a release operation of releasing a part or all of compressed air remaining in the discharge flow channel through the release flow channel when the operation control unit controls to stop the compressor.

First claim

What is claimed is:

1 . An air compression device, comprising:
a rotary compressor; a discharge flow channel connected to a discharge portion of the compressor; a release flow channel disposed to be connectable to the discharge flow channel; and an operation control unit configured to perform a release operation of releasing a part or all of compressed air remaining in the discharge flow channel through the release flow channel when the operation control unit controls to stop the compressor.

2 . The air compression device according to claim 1 , wherein
when the release operation is performed, the operation control unit controls to start releasing the compressed air while driving the compressor, and controls to stop the compressor after a predetermined time elapses.

3 . The air compression device according to claim 1 , wherein
when the release operation is performed, the operation control unit controls to start releasing the compressed air while driving the compressor, and controls to stop the compressor when a condition for finishing the release operation is satisfied.

4 . The air compression device according to claim 1 , further comprising:
an opening/closing mechanism which connects or disconnects the discharge flow channel to or from the release flow channel, wherein the operation control unit is configured to bring the opening/closing mechanism to a disconnected state when an ordinary operation of generating compressed air is performed, and to bring the opening/closing mechanism to a connected state before the compressor is stopped when the release operation is performed.

5 . The air compression device according to claim 2 , further comprising:
an opening/closing mechanism which connects or disconnects the discharge flow channel to or from the release flow channel, wherein the operation control unit is configured to bring the opening/closing mechanism to a disconnected state when an ordinary operation of generating compressed air is performed, and to bring the opening/closing mechanism to a connected state before the compressor is stopped when the release operation is performed.

6 . The air compression device according to claim 3 , further comprising:
an opening/closing mechanism which connects or disconnects the discharge flow channel to or from the release flow channel, wherein the operation control unit is configured to bring the opening/closing mechanism to a disconnected state when an ordinary operation of generating compressed air is performed, and to bring the opening/closing mechanism to a connected state before the compressor is stopped when the release operation is performed.

7 . The air compression device according to claim 1 , further comprising:
a silencer which the compressed air to be released passes through when the release operation is performed.

Assignees

• Nabtesco Corp

Inventors

• Mizufune Toru
• Kuromitsu Masaru
• Miyauchi Tatsuo

Classifications

• F04C28/24 Primary

  characterised by using valves controlling pressure or flow rate, e.g. discharge valves {or unloading valves}(F04C28/10 takes precedence) · CPC title

• F04C29/0028

  Internal leakage control · CPC title

• F04C28/28

  Safety arrangements; Monitoring · CPC title

• F04C18/0261 Primary

  Details of the ports, e.g. location, number, geometry · CPC title