Evaporable foam pattern for cylinder block of a two-cycle engine

Details Evaporable foam pattern for cylinder block of a two-cycle engine Evaporable foam pattern for cylinder block of a two-cycle engine

1988-03-24

1988-10-18

Godici, Nicholas P.

Metal founding

Means to shape a forming surface

Pattern

164 34, 164 45, B22C 702, B22C 904

Patent

active

047779977

ABSTRACT:
The pattern comprises an engine block component having at least one generally cylindrical internal wall that defines a cylinder. A head encloses one end of the cylinder while the opposite end of the cylinder is open to the crankcase end of the block. One or more longitudinally extending recesses or cavities are formed in the cylinder wall. Each recess has a base portion spaced radially outward from the wall and a generally curved end spaced from the head. A separate evaporable foam strip or insert is secured across the recess and is spaced from the base portion to provide a longitudinal transfer passage, while an end of the insert is spaced from the curved end of the recess to define a transfer port that communicates with the cylinder. The longitudinal edges of the wall bordering the recess can diverge in a direction toward the axis of the cylinder, and the longitudinal edges of the insert are similarly contoured to mate with the edges of the wall. The mating edges are joined by an adhesive.

REFERENCES:
patent: 4093018 (1978-06-01), Trumbauer
patent: 4197899 (1980-04-01), Ernest
patent: 4632169 (1986-12-01), Osborn et al.
patent: 4640333 (1987-02-01), Martin et al.
patent: 4657063 (1987-04-01), Morris

Affiliated with

Also associated with

Rating

Evaporable foam pattern for cylinder block of a two-cycle engine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Evaporable foam pattern for cylinder block of a two-cycle engine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evaporable foam pattern for cylinder block of a two-cycle engine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1189303