公开(公告)号：US3878678A

公开(公告)日：1975-04-22

申请号：US38995573

申请日：1973-08-20

Applicant: GEN MOTORS CORP

Inventor： HUELLMANTEL LOUIS W ,  MATTHEWS CHARLES G ,  NORDENSON GARY E

IPC: F02C9/28 ,  F02C9/08

CPC classification number: F02C9/28

Abstract: A fuel system for a gas turbine engine controls operation of the engine by varying flow of fuel to the engine. When there is a substantial deceleration of the engine, the fuel control shuts off fuel flow. This normally would result in extinction of flame in the combustion apparatus. To avoid the necessity of reigniting the engine, with possible undesirable emissions, a small gas pressure loaded accumulator is connected to the engine fuel line. This charges with fuel when fuel pressure is increased and discharges, to provide a gradually decreasing flow for a short time, when fuel pressure is decreased. The temporary flow from the accumulator is sufficient to maintain combustion during deceleration.

Abstract translation: 用于燃气涡轮发动机的燃料系统通过改变发动机的燃料流来控制发动机的操作。 当发动机大幅减速时，燃油控制器关闭燃油流量。 这通常会导致燃烧装置中的火焰熄灭。 为了避免重新点燃发动机的必要性，伴随可能的不期望的排放，小型的气体压力负载蓄能器连接到发动机燃料管线。 当燃料压力增加并排放时，这种燃料在燃料压力降低时在短时间内逐渐减少。 来自蓄能器的临时流量足以在减速期间保持燃烧。