Title:
圧縮空気システムおよび圧縮空気ユニット
Document Type and Number:
Japanese Patent JP4722012
Kind Code:
B2
Abstract:
A compressed air system (10) includes a compressor having an inlet (20) and an outlet (22). A duct (30) fluidly connects the outlet (22) to the inlet (20) and has a valve (32) arranged in the duct (30). A controller (34) communicates with the valve (32) and commands the valve (32) to move between first and second positions (F,S) in response to a surge condition and/or an add-heat condition to regulate an amount of fluid flowing through the duct (30). The valve (32) opens to provide hot air from the compressor outlet to deice the inlet (20) or to provide the higher pressure compressor outlet air to the lower pressure compressor inlet air to obtain a pressure ratio in a desired range. The inventive compressed air unit is designed to provide a compact arrangement so that the valve (32) providing the heated, pressurized air to the inlet (20) is located in close proximity to the inlet (20) for a rapid response time. The duct (30) comprises a relatively short length of tubing interconnecting an add-heat supply outlet (74) and an add-heat plenum inlet (76), which are provided by a housing (40) of the compressor. The housing also includes an add-heat plenum (72) having an annular wall (70) arranged at the inlet (20) to provide an annular cavity (72). Hot air from the compressor outlet is provided to the plenum (72) to heat the annular wall (70) quickly at the inlet (20) to prevent deicing.
Inventors:
Christopher Macau Riff
Craig M. Beales
Craig M. Beales
Application Number:
JP2006297277A
Publication Date:
July 13, 2011
Filing Date:
November 01, 2006
Export Citation:
Assignee:
HAMILTON SUNDSTRAND CORPORATION
International Classes:
F04D27/00; F04D27/02; F04D29/46; F04D29/58
Domestic Patent References:
| JP11506184A |
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Tomioka Kiyoshi
Tomioka Kiyoshi