Patent ID: 6237323
Filing Date: 2001-05-29
Classification: F01D,F23R

Abstract:
A gas turbine combustor apparatus comprising:a turbine casing;a plurality of combustor tail tubes arranged along a circumference of said turbine casing;a combustion area downstream of each of said plurality of combustor tail tubes;a driving device on an outer side of said turbine casing;a plurality of main by-pass valves provided at each of a first group of said combustor tail tubes for controlling an air flow rate for combustion of fuel supplied into said combustion area downstream of each of said first group of combustor tail tubes, each of said main by-pass valves including a valve body and a driving shaft having a proximal end connected to said valve body and having a distal end projecting through said turbine casing to said outer side of said turbine casing and being connected to said driving device such that said driving device is operable to open and close each of said main by-pass valves via sad driving shaft;a plurality of driven by-pass valves provided at each of a second group of said combustor tail tubes for controlling an air flow rate for combustion of fuel supplied into said combustion area downstream of each of aid second group of combustor tail tubes, each of said driven by-pass valves including a valve body and a driven shaft having a proximal end connected to said valve body and having a distal end positioned within said turbine casing; anda plurality of link mechanisms disposed in said turbine casing, each of said link mechanisms including a first driving lever, a second driving lever, a first connecting member, a second connecting member, and a link bar having a first end and a second end, said first driving lever of each of said link mechanims having a proximal end fixed to said driven shaft of one of said driven by-pass valves and having a distal end pivotally connected to said first connecting member, said distal end of said first driving lever having a spring arranged therein, said second driving lever of each of said link mechanisms having a proximal end fixed to said driving shaft of an adjacent one of said main by-pass valves positioned adjacent to said one of said driven by-pass valves and having a distal end pivotally connected to said second connecting member, said distal end of said second driving lever having a spring arranged therein, said first end of said link bar of each of said link mechanisms being connected to said first connecting member, and said second end of said link bar being connected to said second connecting member so as to transmit a rotary movement of said driving shaft of said adjacent one of said main by-pass valves to said driven shaft of said one of said driven by-pass valves, whereby said driving shaft of said adjacent one of said main by-pass valves is operable to open and close said one of said driven by-pass valves in synchronism with the opening and closing of said adjacent one of said main by-pass valves.