Lubricating system for internal combustion engine, oil pan apparatus, and internal combustion engine

摘要

A lubrication system for an internal combustion engine. The lubrication system may comprise an oil cooler; an oil cooler supply passage for delivering oil to an inlet of the oil cooler from an oil reservoir; an oil cooler outlet passage for delivering oil from an outlet of the oil cooler to one or more portions of the internal combustion engine to be lubricated; a first pressure relief valve operably coupled to the oil cooler supply passage, the first pressure relief valve configured to open at a first predetermined pressure to allow oil in the oil cooler supply passage to return to the oil reservoir without passing through the oil cooler; and a second pressure relief valve operably coupled to the oil cooler outlet passage, the second pressure relief valve configured to open at a second predetermined pressure to allow oil in the oil cooler outlet passage to return to the oil reservoir after passing through the oil cooler, the second predetermined pressure being less than the first predetermined pressure.

主权项

1. A lubrication system for an internal combustion engine, the lubrication system comprising:
an oil cooler; an oil cooler supply passage for delivering oil to an inlet of the oil cooler from an oil reservoir; an oil cooler outlet passage for delivering oil from an outlet of the oil cooler to one or more portions of the internal combustion engine to be lubricated; a first pressure relief valve operably coupled to the oil cooler supply passage, the first pressure relief valve configured to open at a first predetermined pressure to allow oil in the oil cooler supply passage to return to the oil reservoir without passing through the oil cooler; and a second pressure relief valve operably coupled to the oil cooler outlet passage, the second pressure relief valve configured to open at a second predetermined pressure to allow oil in the oil cooler outlet passage to return to the oil reservoir after passing through the oil cooler without being delivered to the one or more portions of the internal combustion engine to be lubricated, the second predetermined pressure being less than the first predetermined pressure.