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US 12,729,769 B2Granted
Ball for a valve assembly
AssigneeCaterpillar Inc.
InventorsIgor Strashny, Vinay Jadhav
Life of this patent
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Abstract
A ball for a valve assembly, a valve assembly comprising such a ball, a machine comprising such a valve assembly and a method of operating such a valve assembly. The ball comprises a first bore for communicating fluid through the ball and a second bore for communicating fluid through the ball. A bore valve is located in the first bore for selectively enabling fluid communication through the first bore
Claims6
A valve assembly comprising:
- a valve housing having a first valve port and a second valve port;
- and
- a ball mounted in the valve housing and rotatable about an axis of rotation, the ball comprising;
- an outer surface;
- a first bore that opens to the outer surface, the first bore configured to permit fluid to flow along a first path through the ball;
- a second bore that opens to the outer surface, the second bore configured to permit fluid to flow through the ball in a different path than the first bore;
- the first and second bores intersecting and in fluid communication with one another;
- blocking surface portions of the outer surface;
- the ball having a first orientation relative to the valve housing wherein the first bore is aligned with the first and second valve ports of the valve housing;
- a bore valve located in the first bore, the bore valve configured such that fluid communication is selectively enabled through the first bore when the ball is in the first orientation and the first bore is aligned with the first and second valve ports, the bore valve not extending, or extending only partially across the second bore, the bore valve includes a biasing member that biases the valve into a closed configuration, and the bore valve opens and permits fluid to flow, via the first bore, between the first valve port and the second valve port of the valve housing and into the second bore when a pressure differential across the valve exceeds a threshold;
- wherein the ball has a second orientation wherein the second bore is aligned with the first and second valve ports of the valve housing and permits fluid to flow, via the second bore, between the first valve port and the second valve port of the valve housing;
- and
- wherein the ball has a third orientation wherein the blocking surface portions block the first and second valve ports of the valve housing and prevent fluid from flowing between the first and second valve ports.
10 more elements
Dependencies are inferred from the claim text.