damper

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damper

1. a movable plate to regulate the draught in a stove or furnace flue
2. a device to reduce electronic, mechanical, acoustic, or aerodynamic oscillations in a system
3. Music the pad in a piano or harpsichord that deadens the vibration of each string as its key is released

Damper

An adjustable metal plate inside a flue or air duct, which regulates the draft of a stove, fireplace, or furnace, or controls the flow of air inside a duct; operates automatically in the event of a fire to close off the duct.

Damper

 

a device for extinguishing or attenuating (damping) oscillations or preventing mechanical vibrations that occur during the operation of machines and instruments. Hydraulic and pneumatic dampers are used in automatic regulators and measuring instruments, and dampers in the form of inductance coils are used in electrical machines. The devices used to stop the vibration of the strings in multistring musical instruments are also called dampers; they consist of individual blocks (in a piano) or pads (in a harp) with felt cemented to them.

damper

[′dam·pər]
(electronics)
A diode used in the horizontal deflection circuit of a television receiver to make the sawtooth deflection current decrease smoothly to zero instead of oscillating at zero; the diode conducts each time the polarity is reversed by a current swing below zero.
(mechanical engineering)
A valve or movable plate for regulating the flow of air or the draft in a stove, furnace, or fireplace.

damper

butterfly damper, 1
damper, 1
1. A device used to vary the volume of air passing through an air outlet, inlet, or duct; it does not significantly affect the shape of the delivery pattern.
2. A pivoted cast-iron plate at fireplace throat, i.e., between fireplace and smoke chamber, to regulate draft.
3. Same as fireplace damper.
References in periodicals archive ?
MAT's manually-operated dampers are controlled by rotary actuation cables that can be routed inside or outside of the airstream.
However, such dampers usually are usable in relatively small cross-sectional area ductworks only.
For example, the new 9” panels are designed to access or install dampers such as the Arzel EzySlide (up to 6” round and 10” joist), Arzel Inserta Dampers, Arzel Balance Pro Dampers or equivalent brands/damper sizes.
The Simetal Drive Damper is installed on the tilting drive of the AOD converter.
Dampers were removed from series FPTUs and directly connected to the airflow chamber through a circular sheet metal duct with a length of 2.
Two characteristic settings will be available for damper adjustment that can be activated at the flip of a switch.
In the economizer system tested in this study, the dampers did not seal well, and 12 data points were collected for conditions with the outdoor and return-air temperatures nearly the same.
This Publication has to be referred as: Tomasiak, J[acek] (2013) The Use of Optical Methods for Leak Testing Dampers, Chapter 47 in DAAAM International Scientific Book 2013, pp.
The dampers are connected to a common air plenum in the machine base, which is in turn connected to a single exhaust fan, either connected to the base or mounted remotely.
Vauxhall's FlexRide adaptive damping system is standard on all VXRs, giving drivers the choice of three separate chassis settings - 'Standard' for all-round performance, 'Sport' stiffening the dampers for reduced roll and tighter body control while 'VXR' is FlexRide's most extreme mode.
You'll also need to keep the dampers lubed monthly with GAA.
In recent years Qad-net has been diversifying into import substitution products in HVAC and have announced the addition of new product lines such as air filters, motorised fire and smoke dampers and louvres which will be manufactured and have been tested in compliance with international technical standards.