TH114703A - Gas combustion equipment - Google Patents

Abstract

DC60 (29/03/16) Gas combustion apparatus (1) for oven or grill type equipped with venturi hose (2) for mixing of primary gas, fuel and air. The main distribution room (3) was made longitudinal overhang. The direction of flow in front of the mixture It is located on the destination side to the said Ventury (2), including at least one delivery chamber (22a, 22b) outside the above-mentioned main chamber (3) and which are provided. With flame holes (4; 4a, 4b, 4c, 4d) for the outflow of the primary gas-air mixture, such main chambers (3) and such outer chambers (22a, 22b) are oriented. fluid Each other For at least one longitudinal length of the aforementioned main chamber (3), with at least one pass (16a, 16b, 17a, 17b) yielding the aforementioned passageway (16a, 16b, 17a, 17b) has a large cross-section on the source side and a small cross-section on the destination side of the contour length. The length above of the aforementioned main chamber (3) relative to the longitudinal forward direction of the Mixture flow Revised Invention Summary 29/03/2016 Gas-burning apparatus (1) for ovens or grills with venturi tubes (2) for mixing primary gas, fuel and air. The main distribution room (3) was made longitudinal overhang. The direction of flow in front of the mixture It is located on the destination side to the said Ventury (2), including at least one delivery chamber (22a, 22b) outside the above-mentioned main chamber (3) and which are provided. With flame holes (4; 4a, 4b, 4c, 4d) for the outflow of the primary gas-air mixture, such main chambers (3) and such outer chambers (22a, 22b) are oriented. fluid Each other For at least one longitudinal length of the aforementioned main chamber (3), with at least one pass (16a, 16b, 17a, 17b) yielding the aforementioned passageway (16a, 16b, 17a, 17b) has a large cross-section on the source side and a small cross-section on the destination side of the length along the The length above of the aforementioned main chamber (3) relative to the longitudinal forward direction of the Mixture flow -------------------------------------------------- --------------- Combustion gas (1) for oven or grill type equipped with venturi hose (2) for mixing of primary gas, fuel and air. The main distribution chamber (3) is extended along the direction. Flows to the front of the mixture It is located on the destination side to the said Ventury (2), including at least one delivery chamber (22a, 22b) outside the above-mentioned main chamber (3) and which are provided. With a flame hole (4; 4a, 4b, 4c, 4d) for the outflow of the primary gas-air mixture, such main chambers (3) and such outer chambers (22a, 22b) are welded. For one longitudinal length of the main chamber (3) by at least one pass (16a, 16b, 17a, 17b) that provides a good effect. As mentioned above (16a, 16b, 17a, 17b) has a large cross-section on the source-side and a small-cross-section on the destination-side of the longitudinal section. As mentioned above of the aforementioned main chamber (3) relative to the longitudinal forward direction of the mixture flow.

Claims (9)

All rights reserved which will not appear on the advertisement page: Edited 24 Aug. 2017 1. Gas combustion apparatus (1) for an oven or grill comprising a venturi tube (2) for mixing the fuel gas and primary air, a main distribution chamber (3), extending longitudinally in the forward direction of the primary gas-air mixture and located downstream to said venturi tube (2), including at least one delivery chamber (22a, 22b) arranged outside the main distribution chamber (3) and provided with flame holes (4; 4a, 4b, 4c, 4d) for the outflow of the primary gas-air mixture, a main distribution chamber (3) and at least one delivery chamber (22a, 22b) thereof. Connected fluidically to each other, for at least one longitudinal length of said main distribution chamber (3), by at least one through-hole (16a, 16b, 17a, 17b), the special characteristic being that the at least one through-hole (16a, 16b, 17a, 17b) has a cross-section larger in the upstream portion and a smaller cross-section downstream of at least one longitudinal length of said main distribution chamber (3), relative to the longitudinal forward direction of the flow of said primary gas-air mixture. ---------------------------------------------------------------------------------------------------- Edit 03/06/58 Gas combustion appliance (1) for an oven or grill having a kind of venturi tube (2) for mixing fuel gas and primary air, a main distribution chamber (3), extending longitudinally in the forward direction of the primary gas-air mixture and located at the downstream to said venturi tube (2), including at least one delivery chamber (22a, 22b) arranged outside the main distribution chamber (3) and provided with flame holes (4;4a, 4b, 4c, 4d) for the outflow of the primary gas-air mixture, said main distribution chamber (3) and at least one delivery chamber (22a, 22b) are fluidically connected to each other, for at least one longitudinal length of said main distribution chamber (3), by at least one through-hole (16a, 16b, 17a, 17b), characterized by the at least one through-hole (16a, 16b, 17a, 17b) having a larger cross-section in the upstream portion and a smaller cross-section in the downstream portion of at least one longitudinal length of said main distribution chamber (3), relative to the longitudinal forward direction of the flow of said gas mixture. 2. The combustion device of claim 1, characterized in that at least one longitudinal length of said main distribution chamber (3) extends from a zone in the vicinity of, or at the outlet portion (14) of, the venturi tube (2) to the opposite end (8) of said main distribution chamber (3). 3. The combustion device of claim 1, characterized by comprising at least two delivery chambers (22a, 22b) arranged outside said main distribution chamber (3), provided with flame orifices (4;4a, 4b, 4c, 4d) and fluidically connected to said main distribution chamber (3) through two second interlocking orifices (16a, 16b, 17a, 17b) for said primary gas-air mixture, said orifices (16a, 16b, 17a, 17b) are respectively provided on at least one corresponding longitudinal length of said main distribution chamber (3) and having a larger cross-section in the upstream portion and a smaller cross-section in the downstream portion of at least one corresponding longitudinal length of said main distribution chamber (3), relative to said longitudinal forward direction of said gas flow. 4. The combustion device according to claim 3, characterized in that said at least two delivery chambers (22a, 22b) are developed longitudinally, in the forward direction of said primary gas-air mixture flow, and they are arranged along an axis parallel to said primary distribution chamber axis (3). 5. A combustion device according to any one of claims 1-4, characterized by comprising a top shell (5) and an intermediate diaphragm (13) which, immediately connected, defines at least a portion of said primary diffusion chamber (3), said at least one delivery chamber (22a, 22b) and said at least one through-hole (16a, 16b, 17a, 17b) for said primary gas-air mixture. 6. The combustion device of claim 5, characterized in that said intermediate diaphragm (13) has at least one central concave portion and at least one side convex portion (18a, 18b, 19a, 19b), said central concave portion defining the main diffusion chamber (3) with said longitudinally developed upper shell (5), and at least one side convex portion (18a, 18b, 19a, 19b), together with said upper shell (5) defining at least one through opening (16a, 16b, 17a, 17b) for said primary gas-air mixture. 7. The combustion device of claim 5, characterized by comprising a lower shell (6) connected to said upper shell (5) and connected to said intermediate diaphragm (13), said lower shell (6) defining a lower compensation chamber (15) with said intermediate diaphragm (13). 8. The combustion device of claim 5, wherein the diaphragm (13) is at least partially perforated (20). 9. A combustion device according to any one of claims 1-4, characterized by said passage openings (16a, 16b, 17a, 17b) having a reduced cross-section for some or all of its length. A combustion device according to any one of claims 1-4, characterized by said venturi tube (2) being of the axial type. ------------------------------------------------------------------ Amended 03/29/2016 A gas combustion device (1) for an oven or grill having a kind comprising a venturi tube (2) for mixing the fuel gas and primary air, a primary diffusing chamber (3), extended longitudinally in the forward direction of the primary gas-air mixture and located downstream of the gas-air mixture, and a primary diffusing chamber (4), located downstream of the gas-air mixture. Said venturi tube (2), including at least one delivery chamber (22a, 22b) arranged outside the main distribution chamber (3) and provided with flame orifices (4;4a, 4b, 4c, 4d) for the outflow of the primary gas-air mixture, said main distribution chamber (3) and at least one delivery chamber (22a, 22b) being fluidically connected to each other, for at least one longitudinal length of said main distribution chamber (3), by at least one through-hole (16a, 16b, 17a, 17b), characterized by the at least one through-hole (16a, 16b, 17a, 17b) having a larger cross-section in the upstream portion and a smaller cross-section in the downstream portion of at least one longitudinal length of said main distribution chamber (3), relative to the longitudinal forward direction of said primary gas-air mixture flow. The combustion device of claim 1, characterized by the at least one length Said length of the main distribution chamber (3) extends from a zone in the vicinity of, or at, the outlet portion (14) of the venturi tube (2) to the opposite end (8) of said main distribution chamber (3). The combustion device of claim 1, characterized by comprising at least two delivery chambers (22a, 22b) arranged outside said main distribution chamber (3), provided with flame orifices (4;4a, 4b, 4c, 4d) and fluidically connected to said main distribution chamber (3) through two second interlocking orifices (16a, 16b, 17a, 17b) for said primary gas-air mixture, said orifices (16a, 16b, 17a, 17b) are respectively provided on at least one corresponding longitudinal length of said main distribution chamber (3) and having a larger cross-section in the upstream portion and a smaller cross-section in the downstream portion of at least one corresponding longitudinal length. of said main distribution chamber (3), relative to said longitudinal forward direction of said primary gas-air mixture flow; the combustion device of claim 3, characterized in that said at least two delivery chambers (22a, 22b) are developed longitudinally, in said forward direction of said primary gas-air mixture flow, and they are arranged along an axis parallel to the axis of said main distribution chamber (3); the combustion device of any one of claims 1-4, characterized in that said, comprises a top shell (5) and an intermediate diaphragm (13) which, immediately connected, defines at least part of said main distribution chamber (3); the at least one delivery chamber (22a, 22b) and at least one through opening (16a, 16b, 17a, 17b) for said primary gas-air mixture; the combustion device of claim 5, characterized in that said intermediate diaphragm (13) has at least one central concave section. and at least one side convex portion (18a, 18b, 19a, 19b), said central concave portion defining the boundary of said main diffusion chamber (3) with said longitudinally developed upper shell (5), and at least one side convex portion (18a, 18b, 19a, 19b) together with said upper shell (5) defining the boundary of at least one through opening (16a, 16b, 17a, 17b) for said primary gas-air mixture. The combustion device of claim 5, characterized by a lower shell (6) connected to said upper shell (5) and connected to said intermediate diaphragm (13), said lower shell (6) defining a lower compensation chamber (15) by said intermediate diaphragm (13), the combustion device of claim 5, characterized by said intermediate diaphragm (13) being at least partially perforated (20), the combustion device of any one of claims 1-4, characterized by said passage openings (16a, 16b, 17a, 17b) having a reduced cross-section for part of, or its entire length, the combustion device of any one of claims 1-4, characterized by said venturi tube (2) being of the axial type. --------------------------------------------------- 1. Combustion gas (1) for an oven or grill comprising a venturi tube (2) for mixing the fuel gas and primary air. A main distribution chamber (3) extended longitudinally in the forward flow direction of said mixture and arranged downstream to said venturi tube (2), including at least one delivery chamber (22a, 22b) arranged outside said main chamber (3) and provided with flame holes (4; 4a, 4b, 4c, 4d) for the outflow of the primary gas-air mixture. Said main chamber (3) and at least one outer chamber (22a, 22b) are fluidically connected to each other for at least one longitudinal length of said main chamber (3) by at least one passage (16a, 16b, 17a, 17b) such that the at least one passage (16a, 16b, 17a, 17b) has a large cross-section upstream and a small cross-section downstream of at least one longitudinal length of said main chamber (3) relative to said longitudinal direction of flow of said mixture.