Cylinder head for a water-cooled multi-cylinder internal-combustion engine
AssigneeDr. Ing. h.c.F. Porsche Aktiengesellschaft
InventorsPeter Krotky, Albrecth Reustle
Life of this patent
Estimating the term…
Abstract
A cylinder head for a water-cooled multi-cylinder internal-combustion engine has two intake valves and outlet valves per cylinder. A cylinder head cooling chamber has inflow and outflow openings for coolant as well as a receiving opening for a spark plug. The receiving opening is arranged centrally relative to the cylinder head cooling chamber of a cylinder. On the inflow side in the cylinder head cooling chamber, a main cooling flow runs between the two outlet valves in the direction of the receiving opening for the spark plug, while two secondary cooling flows are provided at the two edge areas of the inflow side.
Claims17
Cylinder head for a water-cooled multi-cylinder internal-combustion engine having two intake valves and outlet valves per cylinder, a cylinder head cooling chamber with inflow and outflow openings for the coolant, and a receiving opening for a spark plug, which receiving opening is arranged centrally relative to the cylinder head cooling chamber of a cylinder,
- wherein on an inflow side in the cylinder head cooling chamber, a main cooling flow runs between the two outlet valves in a direction of the receiving opening for the spark plug, while two secondary cooling flows are provided at two edge areas of the inflow side, and
- wherein at the level of the receiving opening for the spark plug, two guiding ribs are provided laterally of the opening, whose cross-sections have different sizes for generating a transverse flow.
Cylinder head for a water-cooled multi-cylinder internal-combustion engine having two intake valves and outlet valves per cylinder, a cylinder head cooling chamber with inflow and outflow openings for the coolant, and a receiving opening for a spark plug, which receiving opening is arranged centrally relative to the cylinder head cooling chamber of a cylinder,
- wherein on an inflow side in the cylinder head cooling chamber, a main cooling flow runs between the two outlet valves in a direction of the receiving opening for the spark plug, while two secondary cooling flows are provided at two edge areas of the inflow side, and
- wherein on the outflow side of the cylinder head cooling chamber, two outflow openings are provided whose diameters have different sizes for generating a transverse flow.
Cylinder head for a water-cooled multi-cylinder internal combustion engine of the type having two outlet valves per cylinder, said cylinder head comprising:
- an ignition plug receiving opening,
- a pair of outlet valve accommodating recesses at one side of the receiving opening, and
- a cylinder head cooling chamber with inflow and outflow openings for a coolant,
- wherein said cooling chamber is configured to provide a main cooling flow between the outlet valve accommodating recesses and secondary cooling flows alone lateral sides of the outlet valve accommodating recesses, and
- wherein a pair of coolant inflow openings are provided at a side of said outlet valve accommodating recesses facing away from the ignition plug receiving opening.
Cylinder head for a water-cooled multi-cylinder internal combustion engine of the type having two outlet valves per cylinder, said cylinder head comprising:
- an ignition plug receiving opening,
- a pair of outlet valve accommodating recesses at one side of the receiving opening, and
- a cylinder head cooling chamber with inflow and outflow openings for a coolant,
- wherein said cooling chamber is configured to provide a main cooling flow between the outlet valve accommodating recesses and secondary cooling flows along lateral sides of the outlet valve accommodating recesses, and
- wherein coolant guiding ribs with different cross-sectional sizes are provided in the cooling chamber at respective opposite sides of the ignition plug receiving opening, to thereby generate a transverse flow of coolant.
Cylinder head for a water-cooled multi-cylinder internal combustion engine of the type having two outlet valves per cylinder, said cylinder head comprising:
- an ignition plug receiving opening,
- a pair of outlet valve accommodating recesses at one side of the receiving opening, and
- a cylinder head cooling chamber with inflow and outflow openings for a coolant,
- wherein said cooling chamber is configured to provide a main cooling flow between the outlet valve accommodating recesses and secondary cooling flows along lateral sides of the outlet valve accommodating recesses, and
- wherein said cooling chamber has first and second outflow openings with different sizes to thereby generate a transverse flow of coolant.
Dependencies are inferred from the claim text.