US 12,215,649 B2
Composite cylinder block
Norikatsu Sekine, Kanagawa (JP)
Assigned to NISSAN MOTOR CO., LTD., Yokohama (JP)
Appl. No. 18/702,952
Filed by NISSAN MOTOR CO., LTD., Yokohama (JP)
PCT Filed Oct. 22, 2021, PCT No. PCT/JP2021/039031
§ 371(c)(1), (2) Date Apr. 19, 2024,
PCT Pub. No. WO2023/067785, PCT Pub. Date Apr. 27, 2023.
Prior Publication US 2024/0418135 A1, Dec. 19, 2024
Int. Cl. F02F 1/10 (2006.01); F02F 7/00 (2006.01)
CPC F02F 1/10 (2013.01) [F02F 7/0085 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A composite cylinder block, comprising: a main block body made of a metal material; and an outer member made of a resin material and welded to the main block body,
the main block body having a cylinder wall defining therein a cylinder bore and a columnar part formed at a position apart from the cylinder wall,
the outer member being arranged to define a water jacket between the cylinder wall and the outer member, and
the columnar part having formed therein a bolt hole or an oil passage, being placed in the outer member with a predetermined clearance left between the outer member and the columnar part, in a state of being isolated from the water jacket, and extending to a cylinder head.