IT8424018A0 - Per impiego come dispositivo di circuito di controllo di impulsi controllo della velocita' di un ventilatore. - Google Patents
Per impiego come dispositivo di circuito di controllo di impulsi controllo della velocita' di un ventilatore.Info
- Publication number
- IT8424018A0 IT8424018A0 IT8424018A IT2401884A IT8424018A0 IT 8424018 A0 IT8424018 A0 IT 8424018A0 IT 8424018 A IT8424018 A IT 8424018A IT 2401884 A IT2401884 A IT 2401884A IT 8424018 A0 IT8424018 A0 IT 8424018A0
- Authority
- IT
- Italy
- Prior art keywords
- fan
- speed
- circuit device
- control circuit
- control
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/093—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against increase beyond, or decrease below, a predetermined level of rotational speed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
- G01P13/004—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using the rotation of vanes
- G01P13/0046—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using the rotation of vanes with electrical coupling to the indicating device
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/0006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances
- G01P13/006—Indicating or recording presence, absence, or direction, of movement of fluids or of granulous or powder-like substances by using thermal variables
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/564,260 US4513233A (en) | 1983-12-22 | 1983-12-22 | Pulse monitor circuit for use as a fan speed monitor |
Publications (3)
Publication Number | Publication Date |
---|---|
IT8424018A0 true IT8424018A0 (it) | 1984-12-12 |
IT8424018A1 IT8424018A1 (it) | 1986-06-12 |
IT1177397B IT1177397B (it) | 1987-08-26 |
Family
ID=24253767
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT24018/84A IT1177397B (it) | 1983-12-22 | 1984-12-12 | Circuito di controllo di impulsi per impiego come dispositivo di controllo della velocita' di un ventilatore |
Country Status (3)
Country | Link |
---|---|
US (1) | US4513233A (it) |
BE (1) | BE901343A (it) |
IT (1) | IT1177397B (it) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL194355C (nl) * | 1988-05-06 | 2002-01-04 | Indolec B V | Ventilator. |
DE58908388D1 (de) * | 1988-07-28 | 1994-10-27 | Siemens Ag | Überwachungseinrichtung für einen Lüfter. |
WO1990011531A1 (de) * | 1989-03-20 | 1990-10-04 | Papst-Motoren Gmbh & Co. Kg | Frequenzüberwachungsanordnung |
EP0782787B1 (de) * | 1994-09-20 | 1998-06-10 | Siemens Nixdorf Informationssysteme AG | Verfahren und schaltungsanordnung zum regeln von ventilatoren |
US5889469A (en) * | 1997-08-14 | 1999-03-30 | Jmr Electronics, Inc. | Fan pulse alarm using two stage comparator for speed detection |
US6054823A (en) * | 1998-05-19 | 2000-04-25 | Telcom Semiconductor, Inc. | Verification of fan operation |
DE19837014C1 (de) * | 1998-08-14 | 1999-11-04 | Siemens Nixdorf Inf Syst | Schaltungsanordnung zum Regeln der Drehzahl eines Lüfters |
US6163266A (en) * | 1998-12-08 | 2000-12-19 | Lucent Technologies Inc. | Fan operation detection circuit for a DC fan and method of operation thereof |
US6135718A (en) * | 1999-03-25 | 2000-10-24 | System General Corporation | Interface apparatus for fan monitoring and control |
EP1197244A3 (de) * | 2000-10-11 | 2002-10-23 | Micronel AG | Atemschutzeinrichtung für eine Schutzeinrichtung beispielsweise Schutzmaske, Schutzhaube oder Schutzanzug |
CN100362448C (zh) * | 2003-02-26 | 2008-01-16 | 华为技术有限公司 | 一种监控风扇运行的方法 |
US6772752B1 (en) | 2003-04-10 | 2004-08-10 | Maytag Corporation | Cooling system airflow sensor for a cooking appliance |
DE102004013453B4 (de) * | 2004-03-11 | 2006-07-27 | Msa Auer Gmbh | Gebläsefiltergerät für Atemschutzhauben und -masken |
CN101504422B (zh) * | 2009-03-20 | 2011-02-16 | 南京特能电子有限公司 | 风扇转速测量方法 |
US20110214660A1 (en) * | 2010-03-08 | 2011-09-08 | Gillespie Timothy Andrew | System for monitoring a cooling fan of an appliance |
US9447977B2 (en) * | 2014-05-06 | 2016-09-20 | Haier Us Appliance Solutions, Inc. | Appliance and a method for operating an appliance |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE143192C (it) * | ||||
FR2172993B1 (it) * | 1972-02-25 | 1979-08-03 | Wilke Richard | |
JPS5625869B2 (it) * | 1973-05-09 | 1981-06-15 | ||
US4079432A (en) * | 1976-04-29 | 1978-03-14 | Mobil Oil Corporation | Motor restart limiter |
JPS6013146B2 (ja) * | 1977-03-09 | 1985-04-05 | ソニー株式会社 | 回転方向検出装置 |
JPS54162148A (en) * | 1978-06-14 | 1979-12-22 | Hitachi Ltd | Monitor for operational condition |
JPS5576927A (en) * | 1978-12-06 | 1980-06-10 | Toshiba Corp | Abnormal rotation detector for rotary machine |
GB2042191A (en) * | 1979-01-18 | 1980-09-17 | United Gas Industries Ltd | Air or gas-flow detecting device |
US4346371A (en) * | 1980-09-22 | 1982-08-24 | E. I. Du Pont De Nemours And Company | Alarm circuit |
-
1983
- 1983-12-22 US US06/564,260 patent/US4513233A/en not_active Expired - Fee Related
-
1984
- 1984-12-12 IT IT24018/84A patent/IT1177397B/it active
- 1984-12-21 BE BE2/60573A patent/BE901343A/fr not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
IT8424018A1 (it) | 1986-06-12 |
IT1177397B (it) | 1987-08-26 |
US4513233A (en) | 1985-04-23 |
BE901343A (fr) | 1985-04-16 |
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