Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
  • F23N—REGULATING OR CONTROLLING COMBUSTION
  • F23N5/00—Systems for controlling combustion
  • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
  • F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
  • F23N—REGULATING OR CONTROLLING COMBUSTION
  • F23N2225/00—Measuring
  • F23N2225/04—Measuring pressure
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
  • F23N—REGULATING OR CONTROLLING COMBUSTION
  • F23N3/00—Regulating air supply or draught
  • F23N3/08—Regulating air supply or draught by power-assisted systems
  • F23N3/082—Regulating air supply or draught by power-assisted systems using electronic means

Definitions

• This invention refers to sealed room and forced draught domestic heating boilers (hereafter referred to simply as boilers) and the object of the invention concerns a pressure switch adapted to replace any type of faulty electro-mechanical pressure switch, during boiler repairs in domestic habitations.
• the deactivating device is composed of what may be defined as a digital pressure switch: an electronic pressure switch adapted to open the contacts of a relay through an appropriate electronic circuit that is generally integrated with other electronic boiler devices.
• a digital pressure switch an electronic pressure switch adapted to open the contacts of a relay through an appropriate electronic circuit that is generally integrated with other electronic boiler devices.
• the object of this invention is to eliminate all the aforesaid problems caused by diversification of electromechanical pressure switches, also including among these different models, electromechanical switches that are identical but set at different levels.
• the universal pressure switch is composed of a simple digital pressure switch that can be interchanged with all or the majority of the electromechanical pressure switches currently used by boiler manufacturers.
• the universal pressure switch comprises:
• the universal pressure switch acts exactly in the same manner as an electromechanical pressure switch, except for the fact that the intervention pressure level can be set by Technical Servicing personnel according to the boiler model on which it is to be mounted.
• the reference value setting can be obtained using any recognised type of reliable and user-friendly means that can be used in the environments where Technical Servicing operators intervene, such as a trimmer for example.
• the system that is particularly useful, and therefore preferable is composed of a set of resistors with a variety of electrical resistance, each one corresponding to the same number of reference pressure values, interchangeable and insertable in the electronic card to set the universal pressure switch at the intervention pressure required by each type of boiler.
• the switch should be preferably equipped with universal fixing means easily adaptable to several boiler models, and possibly all models, using a simple fixing bracket, for example.

Landscapes

• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Switches Operated By Changes In Physical Conditions (AREA)
• Measuring Fluid Pressure (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=32448903

Family Applications (1)

Country Status (2)

Cited By (1)

Citations (6)

• 2002
  • 2002-12-23 IT IT000035U patent/ITAN20020035U1/it unknown
• 2003
  • 2003-12-22 EP EP03029572A patent/EP1434016A1/de not_active Withdrawn

Patent Citations (6)

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