FR2890301A1 - Wood-fired barbecue has vertical hearth containing glowing coals which are separated from cooking chamber by vertical grill, air duct at rear of hearth being fitted with damper - Google Patents

Abstract

The wood-fired barbecue has a vertical hearth (1) which contains the glowing coals. These are separated from the cooking chamber by a vertical grill (6). An air duct (32) at the rear of the hearth is fitted with a damper (33).

Description

- DESCRIPTION -

  The present invention relates to a device for cooking wood-fired food using a vertical fireplace to allow functions oven, roaster and grill economically, while respecting food hygiene measures.

  Indeed, the vertical fireplace compared to conventional barbecue avoids more or less significant fumes of soot, tar and smoke that come from the fuel and the combustion of fats that run on the home.

  The device according to the invention is an extension of the first known device emanating from patent FR 2688675 published on 24/9/1993 and still exploited under the trademark ARPLEX V. This first device represents a barbecue for cooking food comprising a vertical fireplace, for the reception of embers, arranged beneath a combustion and wood loading chamber, the front face of the fireplace being open and provided with embers retaining bars. At the base a drawer receives the ashes.

  The new device according to the invention comprises the basic principle presented in the cited patent coupled to equipment represented by a closed enclosure to obtain three functions, oven, roaster and grill. In this closed chamber the air circulation which activates the combustion is an updraft coming from a rear opening and passing through the firebox and the combustion chamber to finish up in a flue gas exhaust duct.

  The drawings below give an exemplary embodiment.

  Figure 1 shows in section the device.

  Figure 2 shows a tray equipment.

  Figure 3 shows a grill coupled to a grease recovery dish.

  Figure 4 shows a cylindrical grill.

  FIG. 5 shows the front view of the device. The device represented in FIG. 1 shows that the combustion chamber (1), the combustion chamber (3) and the wood loading chamber (4) are contained in the same steel volume. welded mechanism whose walls converge from top to bottom cone-shaped (17) and opening into an ash drawer (8) contained in the base of the base (31). The grid (6) placed at the front of the vertical hearth (1) is in expanded or perforated metal. Embers (2) are contained in inclined lateral and rear walls. The combustion chamber (3) develops above with steeply inclined walls up to 45 to receive a wood loading access door (18) and a smoke evacuation pipe (9) optionally with a butterfly draft control (10), offset on the side to obtain a flat heating space.

  2890301 2 The draft control valve (10) can be replaced simply by adjusting the fresh air supply at an opening (32) equipped with a draft control flap (33) located on the rear face (23) and passing on both sides of the hearth (1).

  The access door (18) opens up and down by swinging to 90 to form a supply ramp inclined up to 45.

  In the case where the door can not be deployed because of a congested environment, the access door according to another formula will be sliding in a frame.

  During combustion the wood is transformed into embers (2). These descend gradually by gravity in the hearth (1) of conical shape to keep the same density of embers in front of the grid.

  The accumulation of ash during combustion is a risk of malfunction, the base of the fireplace is equipped with an ashtray (27) movable and maintained by two vertical rods (24) both containing a spring (29) and a handle (30). According to the need, it suffices to shake the grid by successive strokes on the handles to evacuate by gravitation the ashes in a drawer (8) provided for this purpose and located under the hearth (1) in the base (31) of the device for To obtain three precise functions, oven, grill and roasting, the heat emitted by the fireplace is concentrated in a closed chamber (7). This enclosure is an envelope encircling the barbecue from the rear (23) on the left sides (21) right (22) and the front or oven door (20) equipped with a porthole (28) articulates with bottom up. Depending on the version of the device used, the envelope will be a mobile device that can be removed for simple barbecue use. It will be made of lightweight sheet metal or composite materials. In other cases it will be made of firebricks or lightweight concrete.

  The base of the device is represented by a base (31) comprising an ash drawer (8) and a motor compartment (25) whose axis passes through the sole (13).

  The sole is equipped with a turntable (14) integral with the motor shaft. In this oven and rotisserie configuration, the turntable can receive a support comprising secondary trays (15) horizontal and spaced apart for cooking pizzas, pies, quiches, bread ... according to Figure 2, or a vertical spindle support (16), placed in a grease recovery dish (12), to put poultry, leg or a support, according to Figure 4, comprising a ring-shaped barrel (34) for cooking shells such as mussels, sea snails the whole being placed in a dish with a high rim (35) for containing a portion of the liquids from the shells. -3 -

  In a grill use, the turntable can be removed on demand to best position the food contained in a vertical grill (11) placed in a plate (12) for recovering grease supported on the sole (13) and a agreed distance from the fireplace depending on the type of cooking required.

  According to another arrangement (FIG. 3) the grill (11) is mounted threaded into the vertical spindle support (16) to allow cooking on both sides by simple rotation of 180. Figure 5 is a front view of the device mounted on its legs (26).

  For the control of cooking through the window (20), a lamp (5) illuminates the enclosure (7) with the control of an electric button. r i

Claims (10)

- CLAIMS -   1) Device for cooking wood-fired food, comprising a vertical hearth (1) for receiving embers (2) disposed beneath a combustion chamber (3) and loading wood (1), the front face of the fireplace being open but barred by a grid (6), characterized in that the heat emitted by the hearth is concentrated in a closed chamber (7) to obtain three functions, that of oven, that of grill and that of rotisserie, knowing that for each function embers (2) are maintained and activated by an upward air flow coming from an opening (32) equipped with a flap (33) of draft adjustment located on the rear face (23). ) and passing on both sides of the hearth (1).   2) Device according to claim 1, characterized in that the closed chamber (7) is a mobile equipment that can be removed for use in simple barbecue, said enclosure is constituted by refractory brick or lightweight concrete or sheet metal or composite material.   3) Device according to claim 1, characterized in that the whole hearth (1), combustion chamber (3) and the wood loading compartment (4) are contained in a welded steel volume whose walls in the form of cone (17) converge from top to bottom to open into an ash drawer (8) contained in the base of a base (31). 4) Device according to claim 3, characterized in that the cone-shaped steel volume (17) comprises from bottom to top, a front vertical grid (6) of expanded metal or perforated to contain the embers (2) in converging walls and a combustion chamber (3) with steeply inclined walls up to 45 to receive a wood loading access door (18) and a flue pipe (9) optionally with a butterfly draft adjustment.   5) Device according to claims 1, 3 and 4, characterized in that the base of the fireplace is equipped with an ashtray (27) movable and held by two vertical rods (24) 25 both containing a spring (29) and a handle (30) to allow, as needed, to shake the grate and gravitational discharge the ashes in a drawer (8) located under the hearth in the base (31) of the device.   6) Device according to claim 4, characterized in that the wood loading access door (18) opens up and down by swinging to 90 to form a supply ramp inclined up to 45.   7) Device according to claim 1, characterized in that the closed chamber (7) is an envelope encircling the barbecue from the rear (23) on the left sides (21) right (22) and from the front where a oven door (20) equipped with a porthole (28) is articulated from bottom to top.   8) Device according to any one of claims 3 to 6, characterized in that the base of the base (31) comprises an ash drawer (8), a motor compartment (25) whose axis passes through a floor (13). ).   9) Device according to claim 8, characterized in that the oven and rotisserie functions are obtained by using a turntable (14) mounted on the sole (13) and actuated by an electric motor (25), said tray can be equipped with either a support comprising secondary trays (15) horizontal and spaced apart to cook food such as pizzas, pies, quiches, bread or a vertical pin rack (16) to put poultry, leg of lamb or a support comprising a grilled ring cylinder (34) for cooking shellfish such as mussels, sea snails.   10) Device according to claim 9, characterized in that the grill function is obtained by removing the turntable and arranging in the enclosure (7) the food contained in a vertical grill (11) threaded into the vertical spindle support (16) to allow cooking on two sides by simple rotation of 180 and placed in a grease recovery dish (12) that is available on the hearth (13) and at an agreed distance from the hearth depending on the type of cooking research.