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A method for producing a throttle valve unit, which is contained in a throttle device comprised of two housing halves. A receptacle housing for an adjusting drive mechanism that actuates the throttle valve unit is formed onto the throttle device. The throttle valve unit is produced in one piece in a

A method for producing a throttle valve unit, which is contained in a throttle device comprised of two housing halves. A receptacle housing for an adjusting drive mechanism that actuates the throttle valve unit is formed onto the throttle device. The throttle valve unit is produced in one piece in a single operation using an injection molding process in which a frame structure is produced, which encompasses a valve surface on both sides of a valve shaft that has bearing elements.

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We claim: 1. A method for producing a throttle valve unit (1), which is contained in a throttle housing that is comprised of two housing halves (20, 30) and has a receptacle housing (23) formed onto it for an adjusting drive mechanism that actuates the throttle valve unit (1), the method comprising

We claim: 1. A method for producing a throttle valve unit (1), which is contained in a throttle housing that is comprised of two housing halves (20, 30) and has a receptacle housing (23) formed onto it for an adjusting drive mechanism that actuates the throttle valve unit (1), the method comprising forming the throttle valve unit (1) in one piece in a single operation using an injection molding process in which a frame structure (3;3.1, 3.2) is produced, which frame structure (3;3.1, 3.2) encircles a valve surface (4;4.1, 4.2) on both sides of a valve shaft (2) that has bearing elements ( 5, 7), further comprising forming attachments (10) and/or receiving surfaces (6) onto the valve shaft (2) of the throttle valve unit (1). 2. The method according to claim 1 wherein a drive element (10) and/or rotation imparting features (15) are formed onto the valve shaft (2) in the vicinity of the bearing elements (5,7). 3. The method according to claim 1 wherein receiving surfaces (6) for sensor elements are formed onto the valve shaft (2) in the vicinity of the bearing elements (5, 7). 4. The method according to claim 1 wherein drive components in the form of gears or driving features are formed onto the valve shaft (2). 5. The method according to claim 1 further comprising inserting the throttle valve unit (1) into the first housing half (20), and fixing the throttle valve unit in place in bearings ( 21, 22) through the installation of the second housing half (30). 6. The method according to claim 1 further comprising injection molding the receptacle housing (23) containing the adjusting drive mechanism onto one of the housing halves (20, 30) so that its longitudinal axis is parallel to the valve shaft ( 2) of the throttle valve unit (1). 7. The method according to claim 1 wherein the throttle valve unit (1) is made of high-quality plastic and is produced in a single operation using the two-component technique. 8. The method according to claim 1 wherein the housing halves (20, 30) of the throttle device are made of an inexpensive material. 9. A method for producing a throttle valve unit (1), which is contained in a throttle housing that is comprised of two housing halves (20, 30) and has a receptacle housing (23) formed onto it for an adjusting drive mechanism that actuates the throttle valve unit (1), the method comprising forming the throttle valve unit (1) in one niece in a single operation using an injection molding process in which a frame structure (3;3.1, 3.2) is produced, which frame structure (3;3.1, 3.2) encircles a valve surface (4;4.1, 4.2) on both sides of a valve shaft (2) that has bearing elements ( 5, 7), wherein the frame structure (3) is formed onto the circumference of the valve surface (4) with a frame thickness (3.3) that is constant over the circumference. 10. A method for producing a throttle valve unit (1), which is contained in a throttle housing that is comprised of two housing halves (20, 30) and has a receptacle housing (23) formed onto it for an adjusting drive mechanism that actuates the throttle valve unit (1), the method comprising forming the throttle valve unit (1) in one niece in a single operation using an injection molding process in which a frame structure (3;3.1, 3.2) is produced, which frame structure (3;3.1, 3.2) encircles a valve surface (4;4.1, 4.2) on both sides of a valve shaft (2) that has bearing elements ( 5.7), wherein the frame structure (3) is formed onto the circumference of the valve surface (4) with a variable frame thickness (2.3). 11. The method according to claim 1 wherein the throttle valve unit (1) is produced as a die-releasing work piece that is free of undercuts.