Lubricant oil filter with continuous release additive vessel
AssigneeCummins Filtration IP, Inc.
InventorsManish PATEL, Dakota L. JOHNSON, R. Douglas HUDGENS, Peter K. HERMAN, John M. TURNEY
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Abstract
An oil filter that includes an additive vessel to introduce additive material into oil flowing through the filter. The additive material includes an over-based detergent and optionally one or more of: a weak base additive, an anti-oxidant additive, an anti-wear additive, a friction modifier additive, a dispersant additive, an anti-foam additive, a nano-additive, a corrosion inhibitor additive, a pour point depressant additive and a surfactant additive.
Claims17
An oil filter, comprising:
- a housing defining an interior chamber and having a first end and a second end, an oil inlet and an oil outlet at the first end of the housing, and an oil flow pathway between the inlet and the outlet for oil flowing through the interior chamber;
- filter media disposed within the interior chamber in the oil flow pathway between the inlet and the outlet, the filter media configured to filter oil flowing through the interior chamber;
- an additive vessel in the interior chamber, the additive vessel configured to introduce additive material contained therein into oil flowing through the interior chamber, the additive material includes an over-based detergent and optionally one or more of:
- a weak base additive, an anti-oxidant additive, an anti-wear additive, a friction modifier additive, a dispersant additive, an anti-foam additive, a nano-additive, a corrosion inhibitor additive, a pour point depressant additive and a surfactant additive.
An additive vessel configured to introduce an additive into oil in an oil filter, the additive vessel comprising:
- a housing defining an interior space, a one-way oil inlet into the interior space located at a region that in use is exposed to a first pressure, and a capillary tube having an inlet end disposed within the interior space and an outlet end disposed outside the interior space at a region that in use is exposed to a second pressure;
- the first pressure is greater than the second pressure;
- and
- additive material contained within the interior space, the additive material includes an over-based detergent and optionally one or more of:
- a weak base additive, an anti-oxidant additive, an anti-wear additive, a friction modifier additive, a dispersant additive, an anti-foam additive, a nano-additive, a corrosion inhibitor additive, a pour point depressant additive and a surfactant additive.
Dependencies are inferred from the claim text.