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US 4,784,091 AGranted
Cylinder head cover structure for a V-type engine
AssigneeMazda Motor Corporation
InventorsMasatoshi Okada, deceased, Masami Nishida, Kazuaki Hokazono
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AssigneeMazda Motor Corporation
InventorsMasatoshi Okada, deceased, Masami Nishida, Kazuaki Hokazono
Estimating the term…
Each of the cylinder heads forming right and left cylinder banks of a V-type engine is provided, in the inner side wall thereof, with intake ports each communicating with a cylinder formed in the cylinder bank. A camshaft is provided in each cylinder bank above intake and exhaust valves to drive the valves in synchronization with the rotation of the engine and supported for rotation by a plurality of bearings. Each discrete intake passage is connected to one of the intake port of one of the cylinder banks and extends above the other cylinder bank. Cylinder head covers mounted on the respective cylinder heads are provided with recessed portions at the portions corresponding to the inter-bearing portions of the camshaft and said discrete intake passages extend through the recessed portions.
A cylinder head cover structure for a cylinder engine having first and second cylinder heads for forming first and second cylinder banks, each cylinder head being provided, in an inner side wall thereof, with intake ports each communicating with a cylinder formed in the cylinder bank, at least one camshaft provided in each cylinder bank above intake and exhaust valves to drive the valves in synchronization with rotation of the engine and supported for rotation by a plurality of bearings, discrete intake passages each of which is connected to one of the intake ports of one of the cylinder banks and extends above the other cylinder bank, and cylinder head covers mounted on the respective cylinder heads, characterized in that recessed portions are formed in each of the cylinder head covers at corresponding portions of the camshaft and respective said discrete intake passages extend through corresponding ones of said recessed portions.
A cylinder head cover structure for a cylinder engine having first and second cylinder heads for forming first and second cylinder banks, each cylinder head being provided, in an inner side wall thereof, with intake ports each communicating with a cylinder formed in the cylinder bank, a pair of intake valves for each cylinder, at least one exhaust valve for each cylinder, a pair of camshafts provided in each cylinder bank to respectively drive the intake valves and the exhaust valves in synchronization with rotation of the engine, a plurality of camshaft bearings formed in each cylinder head between the intake valves for each cylinder, discrete intake passages each of which is connected to one of the intake ports of one of the cylinder banks and extends above the other cylinder bank, and cylinder head covers mounted on the respective cylinder heads, characterized in that recessed portions are formed in each of the cylinder head covers at inter-cylinder portions of the camshaft and respective said discrete intake passages extend through corresponding ones of said recessed portions.
Dependencies are inferred from the claim text.