Coolant system pressure drop reduction
AssigneeFord Global Technologies, LLC
InventorsMyung Ki Sung, Edward Chan-Jiun Jih, Michael W. Degner
Life of this patent
Estimating the term…
Abstract
A vehicle system is disclosed. The vehicle system includes an automatic transmission fluid cooling conduit. The automatic transmission fluid cooling conduit includes an inlet portion, an outlet portion, and an elbow portion connecting the inlet and outlet portions and having an inner surface defining a cavity in fluid communication with the inlet and outlet portions. The automatic transmission fluid cooling conduit also includes an oleophobic or hydrophobic coating on the inner surface. The oleophobic or hydrophobic coating is configured to reduce eddy currents in the cavity.
Claims9
A vehicle system comprising:
- an automatic transmission fluid cooling conduit including an inlet portion, an outlet portion, an elbow portion connecting the inlet and outlet portions and having an inner surface with an outer bend portion and inner bend portion defining a cavity in fluid communication with the inlet and outlet portions, and an oleophobic or hydrophobic coating only on a first portion of the inner bend portion and a hydrophilic or oleophilic coating on a second portion of the inner bend portion, the oleophobic or hydrophobic and oleophilic or hydrophilic coatings cooperating to alter a flow profile of fluid through the elbow portion and reduce eddy currents in the cavity.
An automatic transmission fluid cooling conduit comprising:
- an inlet;
- an outlet;
- an elbow portion connecting the inlet and outlet and having an inner surface defining a cavity in fluid communication with the inlet and outlet, wherein the inner surface includes an outer bend portion and an inner bend portion;
- an oleophobic or hydrophobic coating, only on the outer bend portion;
- and
- a hydrophilic or oleophilic coating, on at least a portion of the outer bend portion, configured to further alter a how profile of fluid in the elbow portion.
A vehicle transmission system comprising:
- an automatic transmission fluid cooler having a plurality of elbow portions and an inner surface defining a cavity for transmission fluid, the inner surface including an outer bend portion and an inner bend portion;
- a pump fluidly connected to the cooler for propelling the transmission fluid;
- and
- an oleophobic or hydrophobic coating only on a first portion of the outer bend portion and a hydrophilic or oleophilic coating on a second portion of the outer bend portion, the oleophobic or hydrophobic and oleophilic or hydrophilic coatings cooperating to alter a flow profile of fluid through the elbow portion and reduce eddy currents in the cavity.
Dependencies are inferred from the claim text.