Modular lubrication/filter system
First Claim
1. Lubrication system for internal combustion engine comprising a housing separate from said engine, said housing defining a chamber therewithin, means dividing said chamber into a filtering section and a sump section, a filter element for filtering engine lubricating oil mounted in said filtering section, conduit means for communicating lubricating oil from said engine to said sump section and from said sump section to said engine, transfer pump means for pumping lubricating oil from said engine to said sump section and from said sump section to said engine through the conduit means, and recycling pump means separate from said transfer pump means for pumping oil from said sump section to said filtering section, said lubricating oil being returned to said sump section after passing through the filter element, said recycling pump means having an inlet side communicated to said sump section and an outlet side communicated to said filtering section whereby said lubricating oil is pumped from said sump section into said filtering section for filtering by said filter element before being returned to said sump section.
1 Assignment
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Accused Products
Abstract
A lubrication system for an internal combustion engine used to power an automotive vehicle includes a housing separate from the engine, and a lubricating oil transfer circuit which pumps oil from the engine to the housing and from the housing back to the engine, and a recycle circuit which pumps oil from a common sump to which the transfer circuit is connected through a filter element and back into the sump.
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Citations
19 Claims
- 1. Lubrication system for internal combustion engine comprising a housing separate from said engine, said housing defining a chamber therewithin, means dividing said chamber into a filtering section and a sump section, a filter element for filtering engine lubricating oil mounted in said filtering section, conduit means for communicating lubricating oil from said engine to said sump section and from said sump section to said engine, transfer pump means for pumping lubricating oil from said engine to said sump section and from said sump section to said engine through the conduit means, and recycling pump means separate from said transfer pump means for pumping oil from said sump section to said filtering section, said lubricating oil being returned to said sump section after passing through the filter element, said recycling pump means having an inlet side communicated to said sump section and an outlet side communicated to said filtering section whereby said lubricating oil is pumped from said sump section into said filtering section for filtering by said filter element before being returned to said sump section.
- 13. Method of operating an engine lubricating system having a sump remote from said engine including the steps of pumping lubricating oil from said engine to said sump and from said sump to said engine through an oil transfer circuit without filtering the oil as it is pumped through the transfer circuit, and pumping oil from said sump through a recycle circuit separate from said transfer circuit and operable independently thereof from said sump through a filter element and then back to said sump.
Specification