Assertion: pilot light | /r/CapableOf | comprise a venturi type structure
Facets:
Source sentences:
text: A pilot burner for a ram jet engine having a main combustion pipe, said pilot burner supported in said pipe and comprising a venturi type structure having an upstream inlet and a downstream outlet, means acting on a portion of the air stream in said pipe flowing into said venturi to slow same down in passing therethrough, means trapping a portion of the air flowing into said venturi structure and means for mixing fuel therewith and discharging said fuel and air mixture into said burner venturi, whereby to provide a combustible fuel and air mixture for said pilot burner of optimum fuel and air ratio, regardless of conditions in said main combustion pipe, a flame holder located in said burner venturi adjacent the outlet, and ignition means located downstream of said flame holder but in said burner passage.
text: A pilot burner for a ram jet engine having a main combustion pipe, said pilot burner supported in said pipe and comprising a venturi type structure having an upstream inlet and a downstream outlet, means acting on a portion of the air stream in said pipe flowing into said venturi to slow same down in passing therethrough, a fuel metering and injection device associated with said burner and having fuel metering means operable in response to the velocity and pressures of the air entering said burner for injecting metered quantities of fuel into the slower moving air in said burner to provide a combustible mixture of an optimum fuel-air ratio regardless of conditions in the main combustion pipe, and a flame holder and associated igniter in said burner venturi adjacent the outlet.
text: A pilot burner for a ram jet engine having a main combustion pipe, said pilot burner supported in said pipe and comprising a venturi type structure having an upstream inlet and a downstream outlet, means acting on a portion of the air stream in said pipe flowing into said venturi to slow same down in passing therethrough, means for mixing fuel with the slower-moving air in said burner venturi, a flame holder located in said burner venturi adjacent the outlet, and ignition means located downstream of said flame holder but in said burner passage, said fuel-air mixing means comprising venturi structure axially located in said burner venturi immediately downstream of the narrowest part of said burner venturi and having a constricted nozzle pointing down stream to spray af'uel-air mixture into the air stream flowing through said burner upstream from said flame holder.
text: A pilot burner for a ram jet engine having a main combustion pipe, said pilot burner supported in said pipe and comprising a venturi type structure having an up stream inlet and a downstream outlet, means acting on a portion of the air stream in said pipe flowing into said venturi to slow same down in passing therethrough, a fuel metering and injection device associated with said burner and having fuel metering means operable in response to the velocity and pressures of the air entering said burner 4 for injecting metered quantities of fuel into the slower moving air in said burner to provide a combustible mixture of an optimum fuel-air ratio regardless of conditions in the main combustion pipe, and a flame holder and associated igniter in said
text: A pilot burner for a ram jet engine having a main combustion pipe, said pilot burner supported in said pipe and comprising a venturi type structure having an upstream inlet and a downstream outlet, means acting on a portion of the air stream in said pipe flowing into said venturi to slow same down in passing therethrough, means for mixing fuel with the slower moving air in said burner venturi, a flame holder located in said burner venturi adjacent the outlet, and ignition means located downstream of said flame holder but in said burner passage, and diverging channel shaped flame holders associated with the pilot burner outlet and operable to hold and spread the flame transversely of the main combustion pipe.
text: A pilot burner for a ram jet engine having a main combustion pipe, said pilot burner supported in said pipe and comprising a venturi type structure having an upstream inlet and a downstream outlet, means acting on a portion of the air stream in said pipe flowing into said venturi to slow same down in passing therethrough, means for mixing fuel with the slower moving air in said burner venturi, a flame holder located in said burner venturi adjacent the outlet, and ignition means located downstream of said flame holder but in said burner passage, and diverging channel shaped flame holders associated with the pilot burner outlet and operable to hold and spread the flame transversely of the main combustion pipe, and secondary flame holders supported in said main combustion pipe downstream of said pilot burner and its associated flame holder and spreader.
text: A pilot burner for a ram jet engine having a main combustion pipe, said pilot burner supported in said pipe and comprising a venturi type structure having an upstream inlet and a downstream outlet, means acting on a portion of the air stream in said pipe flowing into said venturi to slow same down in passing therethrough, means for mixing fuel with the slower moving air in said burner venturi, a flame holder located in said burner venturi adjacent the outlet, and ignition means located downstream of said flame holder but in said burner passage, and diverging channel shaped flame holders associated with the pilot burner outlet and operable to hold and spread the flame transversely of the main combustion pipe, and main fuel supply means located in said main combustion pipe downstream of said pilot burner inlet.
text: A pilot burner for a ram jet engine having a main combustion pipe, said pilot burner supported in said pipe and comprising a venturi type structure having an upstream inlet and a downstream outlet, means acting on a portion of the air stream in said pipe flowing into said venturi to slow same down in passing therethrough, means for mixing fuel with the slower moving air in said burner venturi, a flame holder located in said burner venturi adjacent the outlet, and ignition means located downstream of said flame holder but in said burner passage, and diverging channel shaped flame holders associated with the pilot burner outlet and operable to hold and spread the flame transversely of, the main combustion pipe, and main fuel supply means located in said main combustion pipe downstream of said pilot burner inlet, said fuel supply means comprising annular fuel rings encircling said pilot burner and provided with fuel nozzles spraying fuel into the main air stream.
text: A pilot burner for a ram jet engine having a main combustion pipe, said pilot burner supported in said pipe and comprising a venturi type structure having an upstream inlet and a downstream outlet, means acting on a portion of the air stream in said pipe flowing into said venturi to slow same down in passing therethrough, means for mixing fuel with the slower moving air in said burner venturi, a flame holder located in said burner venturi adjacent the outlet, and ignition means located downstream of said flame holder but in said burner passage, and diverging channel shaped flame holders associated with the pilot burner outlet and operable to hold and spread the flame transversely of the main combustion pipe, and main fuel supply means located in said main combustion pipe downstream of said pilot burner inlet, said fuel supply means comprising annular fuel rings encircling said pilot burner and provided with fuel nozzles spraying fuel into the main air stream, said nozzles ejecting fuel substantially upstream to facilitate atomization of the fuel,
text: A pilot burner for a ram jet engine having a main combustion pipe, said pilot burner supported in said pipe and comprising a venturi type structure having an upstream inlet and a downstream outlet, means acting on a portion of the air stream in said pipe flowing into said venturi to slow same down in passing therethrough, means for mixing fuel with the slower moving air in said burner venturi, a flame holder located in said burner venturi adjacent the outlet, and ignition means located downstream of said flame holder but in said burner passage, and diverging channel shaped flame holders associated with the pilot burner outlet and operable to hold and spread the flame transversely of the main combustion pipe, and main fuel supply means located in said main combustion pipe downstream of said pilot burner inlet, said fuel supply means comprising annular fuel rings encircling said pilot burner and provided with fuel nozzles spraying fuel into the main air stream, said nozzles ejecting fuel substantially upstream to facilitate atomization of the fuel, said annular fuel supply rings disposed concentrically and providing venturi air passages therebetween, said fuel being injected directly into the venturi passages between said annular fuel supply rings.