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U.S. Department of Energy
Office of Scientific and Technical Information

Engine cylinder assembly having an intake cross-passageway

Patent ·
OSTI ID:6912146
This patent describes, in an internal combustion engine of the type having a crankshaft and a cylinder, a cast cylinder assembly. It comprises: a cast cylinder including: a piston bore, an intake valve cavity for receipt of an intake valve, an exhaust valve cavity for receipt of an exhaust valve, the intake and exhaust valve cavities located proximate one another on one side of the piston bore, an integrally cast cross-passageway communicating with the intake valve cavity and curving around the piston bore to the other side of the piston bore opposite the intake and exhaust valve cavities, an opening having side walls communicating with the cross-passageway and open to the exterior of the cylinder; a cover having side walls and a curved inner surface having a curvature corresponding to the curvature of the cross-passageway. The curved inner surface and side walls of the cover being disposed within the opening with the side walls of the cover lying adjacent to the side walls of the opening; and means for sealing the cover to the cylinder to preclude air passage through the opening.
Assignee:
Tecumseh Products Co., Tecumseh, MI
Patent Number(s):
A; US 4893597
Application Number:
PPN: US 7-342186A
OSTI ID:
6912146
Country of Publication:
United States
Language:
English