| Patents for F22D 5 - Controlling water feed or water level; Automatic water feeding or water-level regulators (791) |
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| 08/17/2005 | CN1654882A Method and apparatus for drum level control for drum-type boilers |
| 04/27/2005 | CN1609509A New technique for preheating boiler water filling device by solar energy |
| 03/09/2005 | CN2684019Y Condensed water return vapor autogenous pressure water adding device |
| 02/02/2005 | EP1373796B1 Pressurised steam boilers and their control |
| 01/19/2005 | CN1566748A Method for solving water source for power plant |
| 11/17/2004 | CN2656818Y Automatic water supply device for steam boiler |
| 08/12/2004 | DE10302972A1 Verfahren und Vorrichtung zur Erzeugung von Wasserdampf für die Wäschepflege Method and apparatus for generating steam for laundry care |
| 07/28/2004 | EP1441175A2 Process and apparatus for the generation of steam for fabric care |
| 07/21/2004 | CN2627365Y Steam boiler equipped with high pressure water feeder |
| 07/14/2004 | CN2625728Y Merging phase coupling unitive water supply device |
| 07/07/2004 | CN2624055Y Automatic water inlet fast boiling energy conservation steam stove |
| 06/02/2004 | CN1152204C Water supply equipment using steam pressure and its application |
| 05/26/2004 | CN1500191A Method for feeding closed liquid system |
| 05/12/2004 | CN2615503Y Steam continuous generator |
| 04/15/2004 | US20040069249 Pressurized steam boilers and their control |
| 01/28/2004 | EP1384946A1 Pressurised steam boilers and their control |
| 01/28/2004 | EP1384945A1 Pressurised steam boilers and their control |
| 01/28/2004 | EP1384944A1 Pressurised steam boilers and their control |
| 01/28/2004 | CN1136410C Controller without movable part for raising pressure of water supply and controlling water level in steam drum for boiler |
| 01/21/2004 | EP0968388B1 Waste heat boiler with variable output |
| 01/15/2004 | DE10229250A1 Leistungssteuerung für Dampfkreisprozesse Power control for steam cycles |
| 01/02/2004 | EP1373803A1 Method for feeding a closed liquid system |
| 01/02/2004 | EP1373796A2 Pressurised steam boilers and their control |
| 11/26/2003 | CN2588204Y Fully automatic water feeder for steam boiler |
| 11/19/2003 | CN2586888Y Pressure automatic regulating device for thermal energy circulating water pump and hot-water heating boiler |
| 11/05/2003 | CN2585045Y Boiler circulating water machine set |
| 10/29/2003 | CN1125945C Direct flow steam boiler with steam pocket and possessing water level control function |
| 10/08/2003 | CN2578677Y Semi-automatic water feeder of steaming furnace |
| 10/01/2003 | CN2577119Y Steam boiler water-feeding device |
| 09/03/2003 | CN2570632Y Constant pressure air-tight storage oxygen-free water cistern |
| 08/27/2003 | CN1119557C Waste heat boiler with variable output |
| 08/06/2003 | CN2564869Y Residual steam recovering energy-saving aid for steam boiler |
| 07/09/2003 | CN2559887Y Automatic water supply device for multi-stage piston valve pot tube network non-pump non-heat consumption industrial boiler |
| 06/25/2003 | CN2557807Y Autoamtic control type magnetic turning over double-color level-indicator for boiler |
| 06/04/2003 | CN2554473Y Steam pocket water distribution device of uniform water supply |
| 05/14/2003 | CN2550643Y Automatic water supplement tank for atmospheric water boiler |
| 03/19/2003 | CN1103425C 安全锅炉 Boiler safety |
| 02/18/2003 | US6520122 Pressurized steam boilers and their control |
| 02/06/2003 | WO2002079695A3 Pressurised steam boilers and their control |
| 10/10/2002 | WO2002079696A1 Method for feeding a closed liquid system |
| 10/10/2002 | WO2002079695A2 Pressurised steam boilers and their control |
| 10/10/2002 | US20020144662 Pressurised steam boilers and their control |
| 10/10/2002 | CA2442696A1 Method for feeding a closed liquid system |
| 08/21/2002 | CN2506868Y Steam pressure stabilizer |
| 05/14/2002 | US6386148 Steam-raising system |
| 04/30/2002 | US6380522 Device for the regulation of a generator of a hot fluid in liquid or gaseous phase |
| 04/03/2002 | CN2484477Y Monotube steam boiler with drum and level control function |
| 03/20/2002 | CN1081314C Feed water supply system of power plant |
| 01/16/2002 | CN2472066Y Automatic pressure stabilizer for water heating boiler |
| 01/02/2002 | CN2469317Y Auto-circulating controller for boiler |
| 12/19/2001 | EP0906541B1 Steam generator |
| 12/12/2001 | CN2465044Y DC steam boiler with water level control function |
| 10/24/2001 | CN2456020Y Differiential water supplier |
| 10/03/2001 | CN2451898Y Molded coal boiler static pressure energy-storing equipment |
| 10/03/2001 | CN2451897Y Condensation water level detector for gas-firing boiler |
| 09/05/2001 | CN2446383Y Hydraulic liquid level self-controlling combiner |
| 08/15/2001 | CN2443236Y Thermodynamic self-feeding device for heating stove |
| 08/15/2001 | CN1308203A Direct-flow steam boiler with steam pocket and possessing water level control function |
| 07/11/2001 | CN1302971A Uniflow steam boiler with water level control function |
| 05/09/2001 | EP1098138A1 Device for controlling a generator of hot fluid in liquid or gaseous form |
| 04/11/2001 | EP1091170A2 A steam-raising system |
| 02/07/2001 | CN1282849A Controller without movable part for raising pressure of water supply and controlling water level in steam drum for boiler |
| 01/24/2001 | CN2416353Y Automatic water feeding device for steam boiler |
| 10/24/2000 | US6135062 Steam generator |
| 10/04/2000 | CN2399605Y Limit pressure water feeding equipment |
| 08/22/2000 | US6105538 Waste heat boiler with variable output |
| 06/21/2000 | CN2384107Y Cross flow steam boiler with double water level control |
| 05/24/2000 | CN1254071A Method for detecting abnormal work of water-supply system of boiler and its device |
| 03/22/2000 | CN2370274Y Automatic water feeding controller for boiler |
| 03/08/2000 | CN1246595A Water supply equipment using steam pressure and its application |
| 02/23/2000 | CN2365522Y Magnetic control boiler water lever instrument |
| 01/19/2000 | CN2359563Y Automatic water supply closed-loop control device for steam boiler |
| 01/05/2000 | EP0968388A1 Waste heat boiler with variable output |
| 12/01/1999 | CN1046995C Automatic water supplement apparatus for boiler |
| 11/03/1999 | CN1234104A Waste heat boiler with variable output |
| 09/08/1999 | CN2337406Y Device for preventing water-backing for boiler |
| 08/11/1999 | CN2332893Y Explosion-proof level limit alarmer for boiler |
| 07/07/1999 | CN2327897Y Automatic controller for oil steam furnace |
| 07/07/1999 | CN1222225A 蒸汽发生器 Steam Generator |
| 06/16/1999 | CN2324409Y Automatic water feeding device for pressure balance of steam furnace |
| 04/07/1999 | EP0906541A1 Steam generator |
| 01/13/1999 | CN2304011Y Automatic water-injection device for vapour generator |
| 12/22/1998 | US5850809 Steam-raising system |
| 12/09/1998 | CN2299990Y External automatic water-feeding device for boiler |
| 11/25/1998 | CN2298429Y Liquid on-off device without float valve and water tank |
| 11/04/1998 | CN2296449Y Pressureless boiler water level automatic control alarm instrument displayed by light |
| 09/02/1998 | CN2289952Y Reversible flow liquid level valve |
| 09/02/1998 | CN1191952A Corrosion resistant method for water-lever measuring device and water-lever regulator of boiler |
| 07/29/1998 | CN2286829Y Return-water automatic open-close valve |
| 07/29/1998 | CN2286828Y Elastic ball plug for automatic air-discharge valve |
| 06/30/1998 | US5771846 Method for feed water control in waste heat steam generators |
| 05/20/1998 | CN2282124Y Boiler controller |
| 05/13/1998 | CN2281476Y Automatic level balancer for non-pressure boiler |
| 05/06/1998 | CN2280842Y Automatic controlled alarm for water level of boiler |
| 04/30/1998 | WO1998017948A1 Waste heat boiler with variable output |
| 12/24/1997 | WO1997048947A1 Steam generator |
| 12/10/1997 | CN2270166Y Automatic device for supplementing water quantity in heating tank of steam box |
| 10/29/1997 | CN2266071Y Automatic water supply device for steam boiler for steam bath |
| 08/20/1997 | CN2260241Y Device for automatically feeding chemicals |
| 08/13/1997 | CN1156803A 安全锅炉 Boiler safety |