Intake insulator

Details Intake insulator Intake insulator

1994-11-08

1995-09-05

Okonsky, David A.

Internal-combustion engines

Intake manifold

For use with carburetor upstream of manifold

123 73A, F02B 3304

Patent

active

054471290

ABSTRACT:
An adiabatic intake insulator inserted into a portion for connecting a carburetor to a small two-cycle gasoline engine or the like in which the generation of cracks due to stress concentration when bolts are fastened are restrained and the looseness of the fastening member due to the shortage of fastening torque is prevented. The intake insulator comprises: portions for supporting and securing a carburetor; an intake passage through which air-fuel mixture from the carburetor is introduced to the engine; portions for securing the intake insulator to the engine each comprising a through hole for a bolt and a counterbore for accommodating a head of the bolt; and a channel formed on a circumference of a bottom of the counterbore.

REFERENCES:
patent: 1953809 (1934-04-01), Kenneweg
patent: 3114669 (1963-12-01), Herbst
patent: 3863936 (1975-02-01), Farnam et al.
patent: 4228770 (1980-10-01), Boyesen
patent: 4474145 (1984-10-01), Boyesen
patent: 4498433 (1985-02-01), Ogawa
patent: 4711225 (1987-12-01), Holderle et al.
patent: 4716878 (1988-01-01), Shimada et al.
patent: 4768487 (1988-09-01), Yamamoto et al.
patent: 4819589 (1989-04-01), Nagashima
patent: 4835866 (1989-06-01), Nagashima
patent: 5065708 (1991-11-01), Wehle et al.

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