Cylinder for multi-cylinder type engine
AssigneeTeikoku Piston Ring Co., Ltd.
InventorsFujio Hama, Kenichi Harashina
Life of this patent
Estimating the term…
Abstract
Each of a plurality of cylinder liners has a cooling liquid groove at its outer circumferential surface and has a flat surface over an entire axial length at a part of the outer circumferential surface. The cylinder liners are inserted in bores of a cylinder block with flat surfaces of adjacent liners abutting each other and the grooves at the flat surfaces being coincident with each other.
Claims8
Cylinders for a multi-cylinder type engine comprising a plurality of cylinder liners, each liner having cooling liquid grooves at an outer circumferential surface and having a flat surface at a part of the outer circumferential surface, said cooling liquid grooves comprising a plurality of annular grooves and a plurality of axial grooves providing communication between the annular grooves, said axial grooves being arranged one by one between the adjoining annular grooves and alternately arranged along an axial direction at locations spaced apart by 180.degree. in a circumferential direction, and a cylinder block having bores for receiving said plurality of cylinder lines, said plurality of cylinder liners being inserted into said bores and being arranged with said flat surfaces abutting each other, so that the cooling liquid grooves at said flat surfaces are coincident with each other.
Cylinders for a multi-cylinder engine comprising a plurality of cylinder liners, each liner having cooling liquid grooves at an outer circumferential surface and having a flat surface at a part of the outer circumferential surface, said cooling liquid grooves comprising a plurality of annular grooves, said plurality of annular grooves being divided into a plurality of groups of annular grooves axially spaced along the cylinder, each of said groups of annular grooves having two axial grooves providing communication between the annular grooves of the group and forming, respectively, an outlet and an inlet for a cooling liquid for the group, and an outlet of each group communicating in series with an inlet in an adjoining group of annular grooves, and a cylinder block having bores for receiving said plurality of cylinder liners, said plurality of cylinder liners being inserted into said bores and being arranged with said flat surfaces abutting each other, so that the cooling liquid grooves at said flat surfaces are coincident with each other.
Dependencies are inferred from the claim text.