초록 ▼

A throttle device having a throttle-flap connection piece which is produced from plastic. For an efficient production of the throttle-flap connection piece form plastic in the plastic injection-molding technique, it is necessary to avoid undesirable shrinkage in the pivoting region of the throttle f

A throttle device having a throttle-flap connection piece which is produced from plastic. For an efficient production of the throttle-flap connection piece form plastic in the plastic injection-molding technique, it is necessary to avoid undesirable shrinkage in the pivoting region of the throttle flap and to seal off the bearing arrangements against penetrating plastic during the injection operation. The throttle device includes an annular insertion part which is arranged in the pivoting region of the throttle flap and which, connected to the bearing arrangements is embedded into the throttle-flap connection piece made form plastic, in order to protect the bearing arrangement against penetrating plastic. The injected-round insertion part is suitable for throttle devices which are made from plastic and which are provided for mixture-compressing spark-ignition or air-compressing auto-ignition internal-combustion engines.

대표청구항 ▼

A throttle device with a throttle-flap connection piece having a suction duct, through which projects an actuating shaft which is mounted in the throttle-flap connection piece by means of two bearing arrangements and which is connected rotatably about an axis of rotation to a throttle member that co

A throttle device with a throttle-flap connection piece having a suction duct, through which projects an actuating shaft which is mounted in the throttle-flap connection piece by means of two bearing arrangements and which is connected rotatably about an axis of rotation to a throttle member that controls the suction duct, wherein the throttle-flap connection piece (2) is designed as a plastic injection molding, into which an annular insertion part (56) is embedded transversely relative to the suction duct (3), and has angular straps (70), through which the actuating shaft (8) projects, and the straps (70) each bear with a strap surface (76) facing away from the throttle member (4) against a bearing end face (58, 59) of the bearing arrangement (53, 54) which faces the throttle member (4).