Patent ID: 7131460
Filing Date: 2006-11-07
Classification: B60H,F01P,F16K,Y10T

Abstract:
1. A valve for controlling fluid flow, the valve comprising: a valve housing comprising at least one inlet port and a plurality of outlet ports, including a first outlet port and a second outlet port; and a valve rotor rotatably disposed within the valve housing; wherein the valve rotor comprises a first valve portion comprising a first internal fluid passage arrangement and a second valve portion comprising a second internal fluid passage arrangement, the first internal fluid passage arrangement and the second internal fluid passage arrangement being in fluid communication with each other through a first internal fluid passage, the first internal fluid passage arrangement providing fluid communication between at least one inlet port and the first outlet port and between at least one inlet port and the second internal fluid passage arrangement, the second internal fluid passage arrangement at least partially providing fluid communication between at least one inlet port and the second outlet port, the first internal fluid passage arrangement comprising at least one conduit extending transversely across at least a substantial portion of the rotor and operable to direct flow of coolant across the rotor from an inlet port to an outlet port and from the inlet port to the first internal fluid passage which opens into the first internal fluid passage arrangement at a position flowwise between an inlet port and the first outlet port; wherein the first internal fluid passage extends down along a rotational axis of the valve rotor; and wherein the second internal fluid passage arrangement comprises a pie-shaped fluid passage that extends from the first internal fluid passage to an opening in an outer surface of the valve rotor.