Power plants – Pressure fluid source and motor – Having condition responsive control in a system of distinct...
Reexamination Certificate
2008-04-22
2008-04-22
Lazo, Thomas E. (Department: 3745)
Power plants
Pressure fluid source and motor
Having condition responsive control in a system of distinct...
C060S456000
Reexamination Certificate
active
11368579
ABSTRACT:
A hydraulic system that provides hydraulic fluid to a power steering system of a vehicle at a substantially constant flow rate and can also divert excess hydraulic fluid to the air cooling fan of an associated vehicle at low engine speeds is disclosed. The resulting hydraulic system increases fan speed and increases cooling at low engine speeds while also limiting the input horsepower to one or more driving pumps based at least in part on the outlet pressure of the hydraulic pump unit.
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RD 363036 A Jun. 1994.
Lazo Thomas E.
Parker-Hannifin Corporation
Renner , Otto, Boisselle & Sklar, LLP
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