Engine oil pan structure
AssigneeSuzuki Motor Corporation
InventorNorifumi Sugiyama
Life of this patent
Estimating the term…
Abstract
An engine oil pan structure includes a lower case having a pair of side walls and a plurality of bearing cap sections for connection between the side walls. A balancer device provided under the lower case, mounts on a mounting section formed at positions of the bearing cap section adjoining the side walls. An oil pan covering the balancer device is joined to lower end portions of the side walls. A reinforcing rib having a horseshoe-shaped form and surrounding the balancer device is provided on an external surface of the oil pan, and two end portions of the reinforcing rib are joined or monolithic with portions of a flange section for joining the oil pan to the side walls adjoining the mounting section to reduce noise of an engine having a balancer device.
Claims3
An engine oil pan structure comprising:
- a lower case having a pair of side walls each extending in a longitudinal direction of a crank shaft and a plurality of bearing cap sections for connection between the side walls, said lower case provided under a cylinder block;
- a balancer device having a balancer shaft provided under the lower case, said balancer device mounted on a mounting section formed at positions of the bearing cap sections adjoining the side walls respectively;
- and
- an oil pan covering the balancer device, said oil pan joined to lower end portions of the side walls, wherein a reinforcing rib having a horseshoe-shaped form and surrounding the balancer device is provided on an external surface of the oil pan, and two end portions of the reinforcing rib are joined to portions of a flange section for joining the oil pan to the side walls adjoining the mounting section.
Dependencies are inferred from the claim text.