Title:
圧力変動を低減する流体および燃料供給装置およびそのような装置を含むエンジン
Document Type and Number:
Japanese Patent JP2004522033
Kind Code:
A
Abstract:
Fluid and fuel delivery systems reducing pressure fluctuations and engines including such systems are disclosed. Such systems use a conduit that attenuates pressure fluctuations. Preferably, the conduit attenuates pressure fluctuations by reflecting a portion of a pressure wave within the fluid flow so that reflected pressure waves within the flow interfere with incident pressure waves within the flow, thereby reducing the pressure fluctuations in one embodiment, such a conduit may be formed as a quarter wave stub, in line with the fluid flow. Advantageously, exemplary of the invention, hoot noise in an engine may be reduced by damping pressure fluctuations in the fuel delivery system to the engine.
Inventors:
Dooley, Kevin, A.
Application Number:
JP2002554382A
Publication Date:
July 22, 2004
Filing Date:
December 13, 2001
Export Citation:
Assignee:
Pratt & Whitney Canada, Inc.
International Classes:
F01D25/00; F02C7/22; F02M55/04; F04B11/00; F23K5/14; F23M20/00; G10K11/172; G10K11/175; (IPC1-7): F02C7/22; F01D25/00
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Tomioka Kiyoshi
Tomioka Kiyoshi