Press-fit sleeve for a cylinder head
AssigneeMan Truck & Bus AG
InventorDimitri Schlee
Life of this patent
Estimating the term…
Abstract
A press-fit sleeve for sealing and cooling a component projecting through a fire deck opening in the cylinder head of an internal combustion engine is described. The press-fit sleeve includes a connecting point at a first end of the press-fit sleeve, said connecting point being designed for press fitting into an indentation at an end of the fire deck opening that faces away from a combustion chamber. Furthermore, the press-fit sleeve includes a radially inwardly protruding step at a second end of the press-fit sleeve lying opposite the first end. Between the first end and the second end, the press-fit sleeve includes a lateral surface which is closed in a fluid-tight manner and is or can be brought into contact with a water jacket surrounding the press-fit sleeve.
Claims14
A press-fit sleeve for sealing and cooling a component projecting through a fire deck opening in a cylinder head of an internal combustion engine, comprising:
- a connecting point at a first end of the press-fit sleeve, said connecting point being configured to press fitting into an indentation at an end of the fire deck opening that faces away from a combustion chamber and including a radially inwardly curved collar with a contact surface, said press-fit sleeve not extending continuously over an axial extent of the fire deck as far as the combustion chamber;
- a radially inwardly protruding step at a second end of the press-fit sleeve lying opposite the first end;
- and
- a lateral surface of the press-fit sleeve, said lateral surface being closed fluid-tightly between the first end and the second end and being or being able to be brought into contact with a water jacket surrounding the press-fit sleeve.
A cylinder head of an internal combustion engine, comprising:
- a fire deck with a fire deck opening;
- a press-fit sleeve for sealing and cooling a component projecting through the fire deck opening, the press-fit sleeve including,
- a connecting point at a first end of the press-fit sleeve, said connecting point being configured to press fitting into an indentation at an end of the fire deck opening that faces away from a combustion chamber and including a radially inwardly curved collar with a contact surface, said press-fit sleeve not extending continuously over an axial extent of the fire deck as far as the combustion chamber;
- a radially inwardly protruding step at a second end of the press-fit sleeve lying opposite the first end;
- and
- a lateral surface of the press-fit sleeve, said lateral surface being closed fluid-tightly between the first end and the second end and being or being able to be brought into contact with a water jacket surrounding the press-fit sleeve;
- and
- a cooling water chamber, which is adjacent to the fire deck, for receiving the water jacket which the lateral surface of the press-fit sleeve closes in a fluid-tight manner between the first end and the second end.
A vehicle comprising:
- an internal combustion engine;
- a cylinder head connected to the internal combustion head, the cylinder head including,
- a fire deck with a fire deck opening;
- a press-fit sleeve for sealing and cooling a component projecting through the fire deck opening, the press-fit sleeve including,
- a connecting point at a first end of the press-fit sleeve, said connecting point being configured to press fitting into an indentation at an end of the fire deck opening that faces away from a combustion chamber and including a radially inwardly curved collar with a contact surface, said press-fit sleeve not extending continuously over an axial extent of the fire deck as far as the combustion chamber;
- a radially inwardly protruding step at a second end of the press-fit sleeve lying opposite the first end;
- and
- a lateral surface of the press-fit sleeve, said lateral surface being closed fluid-tightly between the first end and the second end and being or being able to be brought into contact with a water jacket surrounding the press-fit sleeve;
- and
- a cooling water chamber, which is adjacent to the fire deck, for receiving the water jacket which the lateral surface of the press-fit sleeve closes in a fluid-tight manner between the first end and the second end.
Dependencies are inferred from the claim text.