Load adjustment device
AssigneeMannesmann VDO AG
InventorEgon Beil
Life of this patent
Estimating the term…
Abstract
A load adjustment apparatus for an internal combustion engine has a torsion spring (4) which is attached in a positively locking manner to a control shaft (3) for a throttle valve and a supporting part (2). At one end, the torsion spring (4) is bent in a U-shape in order to engage around a pin (17) of the supporting part (2), and has a spring tongue (16) which points in the direction of the base of the U. For mounting, the open end of the U of the torsion spring (4) is pressed over the pin (17) until the spring tongue (16) snaps in behind the pin (17). The torsion spring (4) is then connected in a positively locking manner to the pin (17) and can transmit forces in both rotation directions to the control shaft (3).
Claims18
A load adjustment apparatus having an actuating element which controls power of an internal combustion engine, is designed in particular as a throttle valve and is arranged on a control shaft, wherein the control shaft is driven by a reversible actuating drive which is pivotal between a minimum load position and a full load position, a single torsion spring constituted as a return spring prestressing the control shaft in the minimum load direction and as an emergency running spring prestressing the control shaft against an emergency running stop, a first end of said torsion spring being connectable to the control shaft and a second end of said torsion spring being connectable to an arm of a supporting part which arm is movable between a minimum load stop and the emergency running stop, wherein the second end of the torsion spring engages around a pin of the supporting part, wherein the second end of the torsion spring has an incline with respect to a longitudinal direction of the second end of the torsion spring, and the pin has an engaging bend.
Dependencies are inferred from the claim text.