Vortex combustor

Claim 2

A vortex combustor comprising: a first combustion unit having a cylindrical wall and an end wall on one end thereof for forming a first combustion chamber; a second combustion unit having a cylindrical wall and an end wall on one end thereof for forming a second combustion chamber; a connecting part having a throttled opening for integrally connecting said two combustion units; at least one inlet means in said first combustion unit for introducing gas tangentially into said first combustion chamber; a fuel supplying device and an igniting device connected to said first combustion unit positioned near the central axis of said first combustion chamber; and said second combustion chamber having a throttled open part in said second combustion unit opposite said connecting part.

Claim 3

A vortex combustor according to claim 1, further comprising: an outer casing having a cylindrical wall and two closed end walls; means for supporting said first and second combustion units in said outer casing in spaced relation thereto; at least one inlet passage means provided in said outer casing for introducing gas tangentIally within said outer casing; and at least one outlet passage means provided on said outer casing for discharging combustion gas from said outer casing.

Claim 4

A vortex combustor according to claim 1, wherein said first and second combustion units are disposed coaxially in series.

Claim 5

A vortex combustor according to claim 1, further comprising: a cover plate positioned adjacent said second combustion unit in opposed relation to said throttled open part thereof.

Claim 6

A vortex combustor according to claim 2, further comprising: a throttle member having at least one opening hole therein disposed between said outer casing and second combustion unit adjacent said throttled open part, being arranged to divide the annular space between said outer casing and said first and second combustion units into an annular chamber connected to said inlet passage means and a mixing chamber connected to said outlet passage means.

Claim 7

A vortex combustor according to claim 2, further comprising: a cover plate positioned adjacent said second combustion unit in opposed relation to said throttled open part thereof.

Claim 8

A vortex combustor according to claim 6, further comprising: a throttle member having at least one opening hole therein disposed between said outer casing and said cylindrical wall of said second combustion unit near said throttled open part thereof, and being arranged to divide the annular space between said outer casing and said first and second combustion units into an annular chamber connected to said inlet passage means and a mixing chamber connected to said outlet passage means and an opening between said throttled open part of second combustion unit and said cover plate within said outer casing.

Claim 9

A vortex combustor according to claim 3, further comprising: an outer casing having a cylindrical wall and two closed end walls being disposed about said first and second combustion units in surrounding relation therewith; at least one inlet passage means provided in said outer casing for introducing gas tangentially within said outer casing; and at least one outlet passage means provided in said outer casing for discharging combustion gas from said outer casing.

Claim 10

A vortex combustor according to claim 8, further comprising: a throttle member having at least one opening hole therein disposed between said outer casing and second combustion unit, near said throttled open part thereof, being arranged to divide the annular space between said outer casing and said first and second combustion units into an annular chamber connected to said inlet passage means and a mixing chamber connected to said outlet passage means.

Claim 11

A vortex combustor according to claim 9, further comprising: a cover plate positioned adjacent said second combustion unit in opposed relation to said throttled open part thereof.

Claim 12

A vortex combustor according to claim 10, wherein: said outer casing is composed of first and second cylinders each having outward extending flanges on both ends thereof; one of said end walls of said outer casing being a circular plate fixed on the flange of one end of said first cylinder; the other end of said first cylinder and one end of said second cylinder being fixed together by their flanges with said throttle member interposed therebetween; the other of said end walls of said outer casing being said cover plate integrally fixed to the flange of the other end of said second cylinder; said inlet passage means is a pipe tangentially arranged into one end of said first cylinder at a position near said circular plate; said outlet passage means is a pipe tangentially arranged into one end of said second cylinder at a position near said cover plate; and said first and second integrally connected combustion units are positioned in the interior of said outer casing, in such a manner that said end wall of said first combustion unit is supported elastically to said circular plate and said thRottled open part of said second combustion unit is in opposed relation to said cover plate.

Claim 13

A vortex combustor according to claim 10, wherein: said outer casing and said first and second combustion units are annular cylinders.

Claim 14

A vortex combustor according to claim 1, where said first and second combustion units are disposed such that the axes of said two cylindrical walls intersect at a right angle.

Claim 15

A vortex combustor according to claim 13, further comprising: an outer casing having a cylindrical wall and two closed end walls surrounding said first and second combustion units; at least one inlet passage means in said outer casing for introducing gas tangentially into said outer casing; and at least one outlet passage means in said outer casing for discharging combustion gas from said outer casing.

Claim 16

A vortex combustor according to claim 14, further comprising: a throttle member having at least one opening hole disposed between said outer casing and second combustion unit near said throttled open part of said second combustion unit and being arranged to form an annular chamber connected to said inlet passage means and a mixing chamber connected to said outlet passage means within said outer casing.

Claim 17

A vortex combustor according to claim 15, further comprising: a cover plate positioned adjacent and opposed to said throttled open part of said second combustion unit.

Claim 18

A vortex combustor according to claim 15, further comprising: a wall member extending substantially radially from the cylindrical wall of said second combustion unit and forming a throttled opening surrounded by the inner wall surface thereof for dividing said second combustion chamber into a combustion chamber connected to said first combustion chamber through said throttled opening of said connecting part and a combustion chamber having said throttled open part.

Claim 19

A vortex combustor according to claim 17, wherein: said outer casing and said second combustion unit are annular cylinders.

Claim 20

A vortex combustor according to claim 1, wherein: the ratio of the diameter of said throttled opening of said connecting part to the inner diameter of said first combustion unit is less than or equal to 0.6; the diameter of said throttled open part in said second combustion unit is larger than or equal to the diameter of said throttled opening of said connecting part; and the ratio of the cross-sectional area of said at least one inlet means in said first combustion unit to the product of the inner diameter of said first combustion unit and the diameter of said throttled opening of said connecting part is less than 0.1.

Claim 21

A vortex combustor according to claim 19, wherein: the ratio of the diameter of said throttled open part in said second combustion unit to the inner diameter of said second combustion unit is less than or equal to 0.8.