Flap valve

A flap valve for controlling a gas flow, with a valve tube (13) that conveys the gas flow, with a controllable tube cross section (135), and with a valve flap (14), which is disposed in the valve tube (13), is non-rotatably supported on an adjustable flap shaft (15), and can be pivoted between an open position that maximally unblocks the tube cross section (135) of the valve tube (13) and a closed position that blocks the tube cross section (135), characterized in that a tube end of the valve tube (13) is inclined so that a tube edge (131) of the tube end is essentially disposed in a plane extending at an acute tube inclination angle (β) in relation to the tube axis (132) of the valve tube (13), that the valve flap (14) has an at least approximately elliptical outer contour and is disposed in the valve tube (13) in the region of the inclined tube end so that a tube normal (20) of the valve flap (14) encloses an acute flap inclination angle (α) with the tube axis (132), and that the valve tube (13), at least in the region of the inclined tube end, is embodied so that it can tilt in relation to the flap shaft (15).

A flap valve for controlling a gas flow, with a valve tube (13) that conveys the gas flow, with a controllable tube cross section (135), and with a valve flap (14), which is disposed in the valve tube (13), is non-rotatably supported on an adjustable flap shaft (15), and can be pivoted between an open position that maximally unblocks the tube cross section (135) of the valve tube (13) and a closed position that blocks the tube cross section (135), characterized in that a tube end of the valve tube (13) is inclined so that a tube edge (131) of the tube end is essentially disposed in a plane extending at an acute tube inclination angle (β) in relation to the tube axis (132) of the valve tube (13), that the valve flap (14) has an at least approximately elliptical outer contour and is disposed in the valve tube (13) in the region of the inclined tube end so that a tube normal (20) of the valve flap (14) encloses an acute flap inclination angle (α) with the tube axis (132), and that the valve flap (14) is embodied as at least partially flexible.

A flap valve for controlling a gas flow, with a valve tube (13) that conveys the gas flow, with a controllable tube cross section (135), and with a valve flap (14), which is disposed in the valve tube (13), is non-rotatably supported on an adjustable flap shaft (15), and can be pivoted between an open position that maximally unblocks the tube cross section (135) of the valve tube (13) and a closed position that blocks the tube cross section (135), characterized in that a tube end of the valve tube (13) is inclined so that a tube edge (131) of the tube end is essentially disposed in a plane extending at an acute tube inclination angle (β) in relation to the tube axis (132) of the valve tube (13), that the valve flap (14) has an at least approximately elliptical outer contour and is disposed in the valve tube (13) in the region of the inclined tube end so that a tube normal (20) of the valve flap (14) encloses an acute flap inclination angle (α) with the tube axis (132), and that the valve flap (14) is embodied so that it can tilt in relation to the flap shaft (15).