Pulse combustion apparatus with a plurality of pulse burners
First Claim
1. A pulse combustion apparatus, comprising:
- (a) a fuel supply means;
(b) air supply means;
(c) a plurality of pulse burners coupled with said fuel supply means and said air supply means, each of said pulse burners having a combustion chamber, and an exhaust passage including a tail pipe communicating, at one end thereof, with said combustion chamber, and a cushion chamber communicating with said tail pipe at the other end of said tail pipe; and
(d) means for establishing communication between said exhaust passages of said plurality of pulse burners, the communication establishing means having a passage whose cross-sectional area is within a predetermined range having an upper limit which is smaller than the cross-sectional area of any tail pipe.
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Accused Products
Abstract
In a pulse combustion apparatus, a plurality of identical pulse burners are employed such that a total amount of fuel to be burned is divided into equal amounts which are assigned to respective pulse burners. Either cushion chambers or tail pipes of the pulse burners are arranged to communicate with each other via one or more communicating passages so that interaction occurs in connection with pressure in the exhaust systems of the plurality of pulse burners. The interaction between combustion chambers causes the timings of combustion in the plurality of pulse burners to be synchronized, thus suppressing the occurrence of uncomfortable beat. In some embodiments, a sound-insulating mechanism is employed in each cushion chamber so that propagation of combustion sound to downstream side is effectively suppressed while the heat exchanging coefficient is simultaneously increased. In a further embodiment, sound-absorption materials are used in air pipes and air chambers of each pulse burner for effectively preventing propagation of combustion sound to upstream side.
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Citations
24 Claims
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1. A pulse combustion apparatus, comprising:
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(a) a fuel supply means; (b) air supply means; (c) a plurality of pulse burners coupled with said fuel supply means and said air supply means, each of said pulse burners having a combustion chamber, and an exhaust passage including a tail pipe communicating, at one end thereof, with said combustion chamber, and a cushion chamber communicating with said tail pipe at the other end of said tail pipe; and (d) means for establishing communication between said exhaust passages of said plurality of pulse burners, the communication establishing means having a passage whose cross-sectional area is within a predetermined range having an upper limit which is smaller than the cross-sectional area of any tail pipe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification