Mixer valve of an internal combustion engine of a motor vehicle

A mixer valve (6) of an internal combustion engine (1) of a motor vehicle, the mixer valve (6) comprising:

• an intake duct (4);
• an exhaust duct (5);
• a common manifold duct (7) into which each of the intake duct (4) and the exhaust duct (5) issue;
• a first flap (10), having a first rotatable shaft (12) holding the first flap (10), arranged in the intake duct (4);
• a second flap (11), having a second rotatable shaft (13) holding the second flap (11), arranged in the exhaust duct (5);
• and
• a drive device (8) configured to drive the first and second flaps (10, 11), the drive device (8) having:
• first and second control disks (16, 17) respectively arranged rotationally conjointly on the first and second rotatable shafts (12, 13) of the first and second flaps (10, 11), and
• first and second drive pinions (18, 19) respectively mounted rotatably, and driven, on the first and second rotatable shafts (12, 13) of the first and second flaps (10, 11),
• wherein the control disks (16, 17) and the drive pinions (18, 19) have drivers (22-25) that correspond with one another,
• wherein the first control disk (16) is arranged axially outward of the first drive pinion (18) on the first rotatable shaft (12) and the second control disk (17) is arranged axially inward of the second drive pinion (19) on the second rotatable shaft (13),
• wherein the first and second drive pinions (18, 19) each comprise partial gearwheels with a ring of teeth extending over only 180°, and
• wherein the ring of teeth of first drive pinion (18) couple with the ring of teeth of the second drive pinion (19) via an intermediate common pinion gear (21).