Independent and regenerative mode fluid control system
First Claim
1. A fluid control system, comprising:
- a reservoir;
a pump in fluid communication with the reservoir;
a first double-acting actuator having a first head end chamber and a first rod end chamber;
a second double-acting actuator having a second head end chamber and a second rod end chamber, the first and second double-acting actuators being selectively fluidly connected via a conduit;
a first independent metering valve being configured to selectively provide fluid flow to the first and second double-acting actuators;
a second independent metering valve being configured to selectively provide fluid flow to the first and second double-acting actuators; and
a proportional valve attached to the conduit between the first double-acting actuator and the second double-acting actuator, the proportional valve being capable of operating the fluid control system in either an independent function mode or a regenerative function mode.
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Accused Products
Abstract
A fluid control system is disclosed that includes a reservoir, a pump in fluid communication with the reservoir, a first double-acting actuator having a first head end chamber and a first rod end chamber, a second double-acting actuator having a second head end chamber and a second rod end chamber. The first and second double-acting actuators are selectively fluidly connected via a conduit. A first independent metering valve is configured to selectively provide fluid flow to the first and second double-acting actuators, and a second independent metering valve is configured to selectively provide fluid flow to the first and second double-acting actuators. The fluid control system also includes a proportional valve attached to the conduit between the first double-acting actuator and the second double-acting actuator. The proportional valve is capable of operating the fluid control system in either an independent function mode or a regenerative function mode.
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Citations
15 Claims
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1. A fluid control system, comprising:
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a reservoir;
a pump in fluid communication with the reservoir;
a first double-acting actuator having a first head end chamber and a first rod end chamber;
a second double-acting actuator having a second head end chamber and a second rod end chamber, the first and second double-acting actuators being selectively fluidly connected via a conduit;
a first independent metering valve being configured to selectively provide fluid flow to the first and second double-acting actuators;
a second independent metering valve being configured to selectively provide fluid flow to the first and second double-acting actuators; and
a proportional valve attached to the conduit between the first double-acting actuator and the second double-acting actuator, the proportional valve being capable of operating the fluid control system in either an independent function mode or a regenerative function mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of controlling fluid flow to and from first and second double-acting actuators in an independent function mode and a regenerative function mode, comprising:
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providing a first independent metering valve having a first check valve in fluid communication with the first and second double-acting actuators;
providing a second independent metering valve having a second check valve in fluid communication with the first and second double-acting actuators;
providing a proportional valve in fluid communication with the first and second double-acting actuators;
operating the proportional valve to allow the first and second actuators to selectively operate in independent and regenerative function modes. - View Dependent Claims (14, 15)
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Specification