FR2301736A1 - Hydraulic damper for angular oscillations - avoids use of dynamic seals by using permanent magnets to transmit motion - Google Patents

Hydraulic damper for angular oscillations - avoids use of dynamic seals by using permanent magnets to transmit motion

Info

Publication number
FR2301736A1
FR2301736A1 FR7604470A FR7604470A FR2301736A1 FR 2301736 A1 FR2301736 A1 FR 2301736A1 FR 7604470 A FR7604470 A FR 7604470A FR 7604470 A FR7604470 A FR 7604470A FR 2301736 A1 FR2301736 A1 FR 2301736A1
Authority
FR
France
Prior art keywords
housing
permanent magnets
hydraulic damper
transmit motion
dynamic seals
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.)
Withdrawn
Application number
FR7604470A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell Inc
Original Assignee
Honeywell Inc
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 by Honeywell Inc filed Critical Honeywell Inc
Publication of FR2301736A1 publication Critical patent/FR2301736A1/en
Withdrawn legal-status Critical Current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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
    • F16F15/14—Suppression of vibrations in rotating systems by making use of members moving with the system using masses freely rotating with the system, i.e. uninvolved in transmitting driveline torque, e.g. rotative dynamic dampers
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

The damper is intended for controlling the operation of earth-moving machines such as graders in order to ensure the correct height and angle of the grading blades with respect to the ground. The damper housing (11) has a central shaft (12) running in bearings (15, 38). The end bearing (15) is mounted in the end cover (13) which carries a permanent magnet (19). The middle portion of the shaft (12) carries a damping mass (22) mounted on bearings (23) and enclosed in a housing (21) with a small radial clearance. The housing (21) is filled with hydraulic fluid which damps the oscillations of the mass (22) caused by relative motion between shaft (12) and the main housing (11).
FR7604470A 1975-02-19 1976-02-18 Hydraulic damper for angular oscillations - avoids use of dynamic seals by using permanent magnets to transmit motion Withdrawn FR2301736A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55120875A 1975-02-19 1975-02-19

Publications (1)

Publication Number Publication Date
FR2301736A1 true FR2301736A1 (en) 1976-09-17

Family

ID=24200300

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7604470A Withdrawn FR2301736A1 (en) 1975-02-19 1976-02-18 Hydraulic damper for angular oscillations - avoids use of dynamic seals by using permanent magnets to transmit motion

Country Status (2)

Country Link
DE (1) DE2605765A1 (en)
FR (1) FR2301736A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3122288A1 (en) * 1981-06-04 1983-01-05 Schrimo AG, 6300 Zug DAMPING DIMENSIONS FOR STEPPING MOTORS
WO2002008632A1 (en) * 2000-07-20 2002-01-31 Hörauf & Kohler Verwaltungs KG Motion absorber

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3122288A1 (en) * 1981-06-04 1983-01-05 Schrimo AG, 6300 Zug DAMPING DIMENSIONS FOR STEPPING MOTORS
WO2002008632A1 (en) * 2000-07-20 2002-01-31 Hörauf & Kohler Verwaltungs KG Motion absorber

Also Published As

Publication number Publication date
DE2605765A1 (en) 1976-09-09

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Legal Events

Date Code Title Description
ST Notification of lapse