Throttle device
AssigneeRobert Bosch GmbH
InventorsUdo Utz, Ralf Kromer, Michael Knorpp
Life of this patent
Estimating the term…
Abstract
A throttle device for controlling an internal combustion engine, in which the throttle valve is supported precisely employs a bearing recess serving to support the throttle valve shaft which is surrounded by a clamping element. As a result, there is excellent, durable stabilization of the bearing recess. The throttle device is especially well suited to vehicles that have a throttle-type internal combustion engine.
Claims14
In a throttle device for an internal combustion engine, having a throttle valve housing (2) which includes an extension (22) which has a bearing recess (10), and having a throttle valve shaft (6) with a throttle valve (8), in which the throttle valve shaft (6) is pivotably supported in the bearing recess (10) and is pivotable with the aid of an adjusting device (18) that engages the throttle valve shaft, the improvement comprising a clamping element (30) surrounding the extension (22) in the region of the bearing recess (10), and wherein
- (a) the throttle valve shaft (6) is supported in the bearing recess (10) via a bearing (24);
- (b) the bearing (24) having an outer circumference (24a) such that it fits within the bearing recess (10) with a radial tension against the inside of the bearing recess (10);
- and
- (c) the damning element (30) having an internal diameter such that it presses from the outside inwardly against the extension (22).
Dependencies are inferred from the claim text.