Air shroud for cylinder and cylinder head assemblies

Details Air shroud for cylinder and cylinder head assemblies Air shroud for cylinder and cylinder head assemblies

1989-09-12

1990-10-09

Kamen, Noah P.

Internal-combustion engines

Cooling

Air-cooled

123 417, 417273, 417372, F02F 134

Patent

active

049614053

ABSTRACT:
A air shroud for cylinder and cylinder head assemblies of air-cooled compressors and engines of the type having a cooling air fan for producing an axial flow of cooling air and an array of cylinder and cylinder head assemblies arranged in the path of the axial flow and extending radially relative to the axis of said flow. In particular, the shroud has a flow channel portion of a polygonal segment shape which wraps around the periphery of the array of cylinder and cylinder head assemblies and forms an air channel from the cooling air fan to the cylinder and cylinder head assemblies and which is fastened atop each of the cylinder and cylinder head assemblies. In order to increase the quantity and rate of flow of cooling air over the cylinder and cylinder head assemblies while increasing the surface area of the assemblies washed by the cooling air, fins are provided depending from the flow channel portion of the shroud at a point between 50 to 90% of the distance across the cylinder and cylinder head assemblies viewed in the airflow direction, each of the fins blocking an open area between adjacent cylinder and cylinder head assemblies in a manner creating an airflow orifice gap about its perimeter between the fin and the adjcent cylinder and cylinder head assemblies.

REFERENCES:
patent: 1907454 (1933-05-01), Squires
patent: 1944878 (1934-01-01), Diehl
patent: 2057010 (1936-10-01), Chilton
patent: 2061171 (1936-11-01), Ryder
patent: 2150912 (1939-03-01), Clapp
patent: 3017943 (1962-01-01), Forstner et al.
patent: 4204486 (1980-05-01), Nakagawa et al.

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