US 4,399,777 AGranted

Engine block

AssigneeTeledyne Industries, Inc.

InventorRonald W. Hoettels

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Abstract

An engine block for a reciprocal piston internal combustion engine which is constructed from two substantially identical block halves. Each block half includes a mating surface formed around its outer periphery which is symetrical about the center line and a cylinder adapted to receive a reciprocal piston. Each block further includes a pair of manifold passageways wherein one end of each passageway is adapted to be connected to the cylinder through a valve means while the other of each passageway is open to the mating surface on opposite sides of and equidistantly spaced from the center line. A recessed channel is formed in the mating surface and extends from the other end of each passageway and to the outer edge of the mating surface. The engine block halves are secured together so that the mating surfaces abut together whereupon the recessed channels on one block half register with the recessed channels on the other block half. One pair of registering channels forms the fuel/air intake for the engine block while the other pair of registering channels form the exhaust outlet from the engine block.

Claims9

Dependent claims

An engine block for an internal combustion engine comprising:

a pair of substantially identical block halves, each block half having a mating surface symetrical about a center line formed around the outer periphery on one side and a cylinder adapted to slidably receive a piston,
a pair of passageways formed in each block half, said passageways being adapted for connection at one end to said cylinder and open at their other ends to said mating surface on opposite sides of said center line, said other ends of said passageways being equidistantly spaced from said center line and transversely aligned with each other,
a pair of channels recessed in the mating surface of each block half, one channel extending between each end of said passageways being in communication therewith and to the outer edge of said mating surface,
means for securing said block halves together so that said mating surfaces abut together and so that said channels on one block half register with said channels on the other block half, and
wherein one pair of registering channels forms a fuel/air intake port for the engine block while the other pair of registering channels forms an exhaust outlet for the engine block.

2 more elements

Dependencies are inferred from the claim text.