REGULATOR OF ROOM THERMAL CONDITIONS Russian patent published in 1995 - IPC

FIELD: equipment of buildings and structures. SUBSTANCE: regulator has power cylinder filled with thermosensitive filler, spring-loaded piston with rod which is kinematically linked with opening member, for example with fanlight of hothouse or any other building. Regulator is provided with vacuum compensator made in form of flexible member mounted inside inner chamber of cylinder and brought in communication with atmosphere. Piston is mounted at circular throttling clearance between it and inner surface of cylinder and/or is provided with at least one throttling hole. Area of throttling holes and clearance is less than area of piston by 50 to 100 times. Piston rod may be hollow or may be provided with air passage which brings flexible member in communication with atmosphere; flexible member is secured on inner end of rod. EFFECT: enhanced reliability. 3 cl, 4 dwg