Control system of at least one flap of a fluid duct and fluid duct system
AssigneeMann+Hummel GmbH
InventorsVincent Raimbault, Jérôme Migaud
Life of this patent
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Abstract
A control system of at least one flap of a fluid duct of an intake system of an internal combustion engine, including: a swivel axis, at least one flap connected off-center to the swivel axis by which the at least one flap can be swiveled within the fluid duct between positions with different degrees of opening, a swivel lever connected to the swivel axis, the swivel lever pivoting the swivel axis, an elastic working return element connected directly or indirectly to the swivel lever and applying a force to the at least one flap to return the at least one flap toward a home position.
Claims12
A control system of at least one flap of a fluid duct of an intake system of an internal combustion engine, comprising:
- a swivel axis;
- at least one flap connected off-center to the swivel axis by which the at least one flap can be swiveled within the fluid duct between positions with different degrees of opening;
- a swivel lever connected to the swivel axis, the swivel lever pivoting the swivel axis;
- an elastic working return element connected directly or indirectly to the swivel lever and applying a force to the at least one flap to return the at least one flap toward a home position;
- an actuating lever mounted to a housing part of the fluid duct configured to swivel around a rotation axis, the actuating lever mounted to the swivel lever swiveling round a connection axis;
- wherein the actuating lever has a working surface upon which the elastic return element applies a force to the actuating lever;
- wherein the rotation axis, the connection axis and the swivel axis are parallel to each other;
- wherein a distance radial to at least one of the rotation axis and the connection axis and between the rotation axis and the connection axis and/or between the swivel axis and the connection axis and/or the working surface and the connection axis and/or between the working surface and the rotation axis is varying dependent on the opening/closing position of the at least one flap.
A fluid duct system of an internal combustion engine, comprising:
- at least one fluid duct;
- a control system of at least one flap, including:
- a swivel axis;
- at least one flap connected off-center to the swivel axis by which the at least one flap can be swiveled within the fluid duct between positions with different degrees of opening;
- a swivel lever connected to the swivel axis, the swivel lever pivoting the swivel axis;
- an elastic working return element connected directly or indirectly to the swivel lever and applying a force to the at least one flap to return the at least one flap toward a home position;
- an actuating lever mounted to a housing part of the fluid duct configured to swivel around a rotation axis, the actuating lever mounted to the swivel lever swiveling round a connection axis;
- wherein the actuating lever has a working surface upon which the elastic return element applies a force onto the actuating lever;
- wherein the rotation axis, the connection axis and the swivel axis are parallel to each other;
- wherein a distance radial to at least one of the rotation axis and the connection axis and between the rotation axis and the connection axis and/or between the swivel axis and the connection axis and/or the working surface and the connection axis and/or between the working surface and the rotation axis is varying dependent on the opening/closing position of the at least one flap.
Dependencies are inferred from the claim text.