Title:
二種燃料ノズル
Document Type and Number:
Japanese Patent JP4689777
Kind Code:
B2
Abstract:
The dual-fuel nozzle for a gas turbine and combustor includes a liquid fuel nozzle (12) surrounded by a gas fuel nozzle (14). A converging sleeve (16) surrounds the converging outer wall of the combined liquid fuel and gaseous nozzle to form a duct (D) of decreasing cross-sectional area in a downstream direction whereby air flow through the duct accelerates toward the conical droplet spray pattern emerging from the liquid fuel nozzle. An inside swirler (18) is located upstream of the liquid fuel tip (30) to swirl the air flowing through the duct. An outer swirler (20) is provided about the downstream end of the sleeve, likewise to swirl air. The accelerated swirling air flow through the duct and outer swirling air flow preclude impingement of oil spray droplets onto metal surfaces of the nozzle and hence prevent carbon deposition thereon which would otherwise be deleterious to the liquid fuel and gaseous nozzles.
Inventors:
Anthony J. Loprizo
James Rawlins Morgan
H. Lindsey Morton
Stephen Hugh Black
Anthony John Dean
William Theado Becheter, The Second
Andrew Lutz
James Rawlins Morgan
H. Lindsey Morton
Stephen Hugh Black
Anthony John Dean
William Theado Becheter, The Second
Andrew Lutz
Application Number:
JP26264198A
Publication Date:
May 25, 2011
Filing Date:
September 17, 1998
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
F02C7/22; F23C7/00; F23R3/28; F23D17/00; F23R3/14
Domestic Patent References:
| JP8508089A | ||||
| JP1189419A | ||||
| JP5074830A | ||||
| JP6506760A | ||||
| JP6347040A |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Toshihisa Kurokawa
Hirokazu Ogura
Toshihisa Kurokawa