GB1226483A - - Google Patents

Info

Publication number
GB1226483A
GB1226483A GB1226483DA GB1226483A GB 1226483 A GB1226483 A GB 1226483A GB 1226483D A GB1226483D A GB 1226483DA GB 1226483 A GB1226483 A GB 1226483A
Authority
GB
United Kingdom
Prior art keywords
brake
counter
braking
hydrodynamic
operated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1226483A publication Critical patent/GB1226483A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/08—Arrangement or disposition of transmission gearing ; Couplings; Brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D63/00—Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D49/00 - F16D61/00

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Stopping Of Electric Motors (AREA)
  • Braking Arrangements (AREA)

Abstract

1,226,483. Braking centrifugal separators. WESTFALIA SEPARATOR A.G. 29 Oct., 1969 [2 Dec., 1968], No. 53081/69. Heading B2P. [Also in Division F2] The braking system in a centrifugal separtor comprises the combination of a hydrodynamic brake and a mechanical brake and/or a counter-current brake which are operated in such a manner that at the commencement of braking at least the hydrodynamic brake is arranged to come into operation and subsequently at least the mechanical and/or the counter-current brake is arranged to come into operation. The hydrodynamic brake 3-8 is of the type described in Specification 1,223,396, the valve 6 controlling the admission of brake fluid through the supply pipe 5 being operated by an electro-magnet M. The mechanical brake 10 comprises a brake shoe 11 arranged to engage the side of the separator drum 2 when operated by a magnetic coil 12. In operation, when the drum 2 is to be braked, a switch S in an electric circuit is closed. This causes the magnet M to be energised and to open the valve 6 so that the hydrodynamic brake comes into operation. Closure of the switch S also actuates a time relay T which after a predetermined interval causes a contact tl to close to operate the coil 12 whereby the brake shoe 11 engages against the drum. When a counter-current brake is used the time relay T is arranged to move contacts t 2 , t 3 to switch over the phases L 1 , L 2 of the lines leading to the drive motor which in this case is a polyphase inductor motor. This causes a reversal of the rotational field of the motor so that braking takes place by counter-current flow.
GB1226483D 1968-12-02 1969-10-29 Expired GB1226483A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681812105 DE1812105A1 (en) 1968-12-02 1968-12-02 Braking device for separators

Publications (1)

Publication Number Publication Date
GB1226483A true GB1226483A (en) 1971-03-31

Family

ID=5714921

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1226483D Expired GB1226483A (en) 1968-12-02 1969-10-29

Country Status (6)

Country Link
DE (1) DE1812105A1 (en)
DK (1) DK127042B (en)
FR (1) FR2024978A1 (en)
GB (1) GB1226483A (en)
NL (1) NL6915434A (en)
SE (1) SE364882B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002032581A1 (en) * 2000-10-16 2002-04-25 Alfa Laval Corporate Ab Method and arrangement to rapidly lower the rotary speed of a centrifugal separator
US7056272B2 (en) * 2002-10-11 2006-06-06 Westfalia Separator Ag Centrifuge having an emergency off system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1232833B (en) * 1960-08-10 1967-01-19 Jean David Retractable and retractable support wheel for single-axle vehicle trailers
DE1239574B (en) * 1961-04-28 1967-04-27 Kober Kg A Support wheel for single-axle vehicles
DE2824045C2 (en) * 1978-06-01 1983-03-24 Heraeus-Christ Gmbh, 3360 Osterode Circuit arrangement for braking a laboratory centrifuge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002032581A1 (en) * 2000-10-16 2002-04-25 Alfa Laval Corporate Ab Method and arrangement to rapidly lower the rotary speed of a centrifugal separator
US7070553B2 (en) 2000-10-16 2006-07-04 Alfa Laval Ab Method and arrangement to rapidly lower the rotary speed of a centrifugal separator
US7056272B2 (en) * 2002-10-11 2006-06-06 Westfalia Separator Ag Centrifuge having an emergency off system

Also Published As

Publication number Publication date
DE1812105A1 (en) 1970-06-11
NL6915434A (en) 1970-06-04
FR2024978A1 (en) 1970-09-04
DK127042B (en) 1973-09-17
SE364882B (en) 1974-03-11

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee