Patent ID: 7040275
Filing Date: 2006-05-09
Classification: F01M

Abstract:
1. A structure of an oil pan which is mounted to a lower surface of a cylinder block in order to reserve an oil therewithin, the structure comprising an oil pump housing cast integrally with the oil pan and further comprising an oil pump driving means that is disposed at a higher level than an oil surface reserved within the oil pan or is submerged within the oil, wherein the oil pump housing is integrally formed with an inner side of a side surface located on the side of one end in a width direction of the oil pan, a rib is provided to connect the side surface located on the side of one end and integrally formed with the oil pump housing to a side surface located on the side of the other end, the rib separates an inner side of the oil pan from an outer side arrangement chamber in which the oil pump driving means is disposed, and an opening for communicating the arrangement chamber with the inner side of the oil pan is formed in a lower portion of the rib.