Back to results
US 8,943,797 B2Granted
Cylinder head with symmetric intake and exhaust passages
AssigneeGM Global Technology Operations LLC
InventorsAlan W. Hayman, Eric C. Douse
Life of this patent
Estimating the term…
Abstract
A cylinder head for an internal combustion engine defines first and second intake passages for supplying air through first and second intake valve openings to first and second cylinders. The cylinder head also defines first and second exhaust passages for conveying first and second streams of exhaust gas from first and second exhaust valve openings associated with first and second cylinders. The first exhaust valve opening is disposed outboard of the first intake valve opening, and the second exhaust valve opening is disposed outboard of the second intake valve opening.
Claims17
A cylinder head for sealing at least two cylinders of an internal combustion engine,
- the cylinder head defining a first intake passage for supplying air through a first intake valve opening to a first cylinder of the at least two cylinders, the first intake passage extending to the first intake valve opening from an intake face of the cylinder head and being disposed for fluid communication, at the intake face, with a first intake runner of a mating intake manifold;
- the cylinder head defining a second intake passage for supplying air through a second intake valve opening to a second cylinder of the at least two cylinders, the second intake passage extending to the second intake valve opening from the intake face and being disposed for fluid communication, at the intake face, with a second intake runner of the mating intake manifold;
- the cylinder head defining an exhaust vent at an exhaust face of the cylinder head;
- the cylinder head defining a first exhaust passage for conveying a first stream of exhaust gas to the exhaust vent from a first exhaust valve opening associated with the first cylinder;
- the cylinder head defining a second exhaust passage for conveying a second stream of exhaust gas to the exhaust vent from a second exhaust valve opening associated with the second cylinder;
- the exhaust vent being disposed between the first cylinder and the second cylinder;
- the first exhaust valve opening being disposed outboard of the first intake valve opening;
- and
- the second exhaust valve opening being disposed outboard of the second intake valve opening;
- wherein the first cylinder is adjacent to the second cylinder and the first intake valve opening and the second intake valve opening are disposed approximately equidistant from a central plane defined between the first cylinder and the second cylinder and centrally through the exhaust vent.
7 more elements
An internal combustion engine comprising:
- a cylinder housing defining a first cylinder for reciprocation of a first piston therein and a second cylinder for reciprocation of a second piston therein;
- and
- a cylinder head coupled to the cylinder housing for sealing the first cylinder and the second cylinder;
- the cylinder head defining a first intake passage for supplying air through a first intake valve opening to the first cylinder, the first intake passage extending to the first intake valve opening from an intake face of the cylinder head and being disposed for fluid communication, at the intake face, with a first intake runner of a mating intake manifold;
- the cylinder head defining a second intake passage for supplying air through a second intake valve opening to the second cylinder, the second intake passage extending to the second intake valve opening from the intake face and being disposed for fluid communication, at the intake face, with a second intake runner of the mating intake manifold;
- the cylinder head defining an exhaust vent at an exhaust face of the cylinder head;
- the cylinder head defining a first exhaust passage for conveying a first stream of exhaust gas to the exhaust vent from a first exhaust valve opening associated with the first cylinder;
- the cylinder head defining a second exhaust passage for conveying a second stream of exhaust gas to the exhaust vent from a second exhaust valve opening associated with the second cylinder;
- the exhaust vent being disposed between the first cylinder and the second cylinder;
- the first exhaust valve opening being disposed outboard of the first intake valve opening;
- and
- the second exhaust valve opening being disposed outboard of the second intake valve opening;
- the first cylinder being adjacent to the second cylinder and the first intake valve opening and the second intake valve opening are disposed approximately equidistant from a central plane defined between the first cylinder and the second cylinder and centrally through the exhaust vent.
10 more elements
Dependencies are inferred from the claim text.