A water delivery system is provided, including at least one sink with a faucet device having a cold water faucet part and a hot water faucet part, a cold water line to the at least one sink, a hot water line to the at least one sink, and a valve associated with the at least one sink allowing in an o
A water delivery system is provided, including at least one sink with a faucet device having a cold water faucet part and a hot water faucet part, a cold water line to the at least one sink, a hot water line to the at least one sink, and a valve associated with the at least one sink allowing in an open state the transport of water between the hot water line and the cold water line and inhibiting in a closed state the transport of water between the hot water line and the cold water line, wherein the open state and the closed state of the valve depend solely on whether a differential pressure across the valve is below or above a threshold value.
대표청구항▼
1. Water delivery system, comprising: at least one sink with a faucet device comprising a cold water faucet part and a hot water faucet part;a cold water line to the at least one sink;a hot water line to the at least one sink; anda valve associated with the at least one sink allowing in an open stat
1. Water delivery system, comprising: at least one sink with a faucet device comprising a cold water faucet part and a hot water faucet part;a cold water line to the at least one sink;a hot water line to the at least one sink; anda valve associated with the at least one sink allowing in an open state the transport of water between the hot water line and the cold water line and inhibiting in a closed state the transport of water between the hot water line and the cold water line,wherein the valve includes (i) a hot water inlet for receiving hot water from the hot water line, (ii) a cold water inlet for receiving cold water from the cold water line, (iii) a channel connecting the hot water inlet to the cold water inlet, and (iv) a moveable closing device positioned within the channel for moving between a closed position that prevents mixing of the cold water and the hot water within the channel and an open position that permits mixing of the cold water and the hot water within the channel, wherein the moveable closing device is configured for closing the connection between the hot water inlet and the cold water inlet at a threshold value of differential pressure across the valve, wherein the closing device includes a first closing member part for closing a first port of the channel, a second closing member part for closing a second port of the channel, and a connecting member positioned within the channel for connecting the first closing member part to the second closing member part;wherein movement of the valve from the open state towards the closed state of the valve depends solely on the differential pressure across the valve relative to the threshold value. 2. Water delivery system in accordance with claim 1, further comprising a circulating pump. 3. Water delivery system in accordance with claim 2, wherein at least one temperature sensor is arranged in the hot water line, said at least one temperature sensor providing its sensor signals to the circulating pump. 4. Water delivery system in accordance with claim 3, wherein the circulating pump comprises a signal receiver for sensor signals transmitted in a wireless manner, and a control unit, and wherein the circulating pump is switched on and off or adjusted in dependence upon a measured temperature via the control unit. 5. Water delivery system in accordance with claim 3, wherein the at least one temperature sensor is arranged in the vicinity of the valve or is arranged on the valve before a closing device of the valve with regard to the flow direction of hot water from a water heater. 6. Water delivery system in accordance with claim 2, wherein a switching state of the valve is independent of a control state of the circulating pump. 7. Water delivery system in accordance with claim 1, wherein the valve is in the open state when the hot water faucet part and the cold water faucet part of the associated sink and any other faucet device in the system are closed. 8. Water delivery system in accordance with claim 1, wherein the threshold value is reached when at least one of the hot water faucet part and the cold water faucet part or any other faucet device in the system is opened or open. 9. Water delivery system in accordance with claim 2 wherein the threshold value is larger than a maximum differential pressure caused by the circulating pump. 10. Water delivery system in accordance with claim 1, wherein the closing device operates independently of the water temperature. 11. Water delivery system in accordance with claim 1, wherein the closing device is adapted to operate independently of the sign of the threshold pressure. 12. Water delivery system in accordance with claim 1, wherein the pressure difference is the difference between the pressure in a hot water region on one side of the channel and a cold water region on the other side of the channel. 13. Water delivery system in accordance with claim 1, wherein the first closing member part is biased by a first spring device and the second closing member part is biased by a second spring device. 14. Water delivery system in accordance with claim 13, wherein the first spring device is supported on a first area at the first channel port, and the second spring device is supported on a second area at the second channel port. 15. Water delivery system in accordance with claim 1, wherein a first seal is associated with the first closing member part, and a second seal is associated with the second closing member part. 16. Water delivery system in accordance with claim 1, wherein the closing device is linearly displaceable. 17. Valve for a sink, said valve comprising: a hot water inlet for receiving hot water from a hot water line;a cold water inlet for receiving cold water from a cold water line;wherein the hot water inlet and the cold water inlet are operatively connected by a channel; anda moveable closing device for closing the connection between the hot water inlet and the cold water inlet at a threshold value of differential pressure across the valve,wherein the closing device includes a first closing member part for closing a first port of the channel, a second closing member part for closing a second port of the channel, and a connecting member positioned within the channel for moving between a closed position that prevents mixing of the cold water and the hot water within the channel and an open position that permits mixing of the cold water and the hot water within the channel, wherein the moveable closing device is configured for connecting the first closing member part to the second closing member part;wherein movement of the valve from the open state towards the closed state of the valve depends solely on the differential pressure across the valve relative to the threshold value. 18. Valve in accordance with claim 17, wherein the closing device operates independently of the water temperature. 19. Valve in accordance with claim 17, wherein the closing device is adapted to operate independently of the sign of the threshold pressure. 20. Valve in accordance with claim 17, wherein the pressure difference is the difference between the pressure in a hot water region on one side of the channel and a cold water region on the other side of the channel. 21. Valve in accordance with claim 17, wherein the first closing member part is biased by a first spring device, and the second closing member part is biased by a second spring device. 22. Valve in accordance with claim 21, wherein the first spring device is supported on a first area at the first channel port, and the second spring device is supported on a second area at the second channel port. 23. Valve in accordance with claim 17, wherein a first seal is associated with the first closing member part, and a second seal is associated with the second closing member part. 24. Valve in accordance with claim 17, wherein the closing device is linearly displaceable.
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이 특허에 인용된 특허 (31)
Lund William J. (Stockton CA), Accelerated hot water delivery system.
Lujan ; Jr. Albert G. (625 W. Calle Castille Tucson AZ 85706), Multi-controlled water conservation system for hot water lines with low pressure utilization disable.
Powers Debora L. (P.O. Box 95 Melbourne FL 32902) Powers John G. (P.O. Box 95 Melbourne FL 32902) Rogina Eugene L. (2235 Pueblo Dr. Billings MT 59102), Water conservation system.
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