HYDRAULIC SYSTEM
First Claim
1. A ground engaging vehicle, comprising:
- a movable member;
a hydraulically driven actuator coupled to said movable member, said actuator including a first chamber and a second chamber;
a hydraulic pump;
a plurality of non-proportional valves including a first valve, a second valve, a third valve and a fourth valve; and
at least one hydraulic conduit coupling said pump with said first valve and said second valve, said first valve being in direct fluid communication with said first chamber, said second valve being in direct fluid communication with said second chamber, said third valve being in direct fluid communication with said first chamber, said fourth valve being in direct fluid communication with said second chamber, said first valve and said second valve each including an open position and a closed position.
1 Assignment
0 Petitions
Accused Products
Abstract
A ground engaging vehicle including a movable member, a hydraulically driven actuator, a hydraulic pump, a plurality of valves and at least one hydraulic conduit. The hydraulically driven actuator is coupled to the movable member and the actuator has a first chamber and a second chamber. The plurality of non-proportional valves include a first valve, a second valve, a third valve and a fourth valve. The at least one hydraulic conduit couples the pump with the first valve and the second valve. The first valve is in direct fluid communication with the first chamber. The second valve is in direct fluid communication with the second chamber. The third valve is in direct fluid communication with the first chamber and the fourth valve is in direct fluid communication with the second chamber. The first valve and the second valve each include an open position and a closed position.
58 Citations
22 Claims
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1. A ground engaging vehicle, comprising:
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a movable member; a hydraulically driven actuator coupled to said movable member, said actuator including a first chamber and a second chamber; a hydraulic pump; a plurality of non-proportional valves including a first valve, a second valve, a third valve and a fourth valve; and at least one hydraulic conduit coupling said pump with said first valve and said second valve, said first valve being in direct fluid communication with said first chamber, said second valve being in direct fluid communication with said second chamber, said third valve being in direct fluid communication with said first chamber, said fourth valve being in direct fluid communication with said second chamber, said first valve and said second valve each including an open position and a closed position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A hydraulic system for use on a ground engaging vehicle, the hydraulic system comprising:
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a hydraulically driven actuator including a first chamber and a second chamber; a hydraulic pump; a plurality of non-proportional valves including a first valve, a second valve, a third valve and a fourth valve; and at least one hydraulic conduit coupling said pump with said first valve and said second valve, said first valve being in direct fluid communication with said first chamber, said second valve being in direct fluid communication with said second chamber, said third valve being in direct fluid communication with said first chamber, said fourth valve being in direct fluid communication with said second chamber, said first valve and said second valve each including an open position and a closed position. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification