GB2564410A9 - Elastomeric torsional isolator - Google Patents

Elastomeric torsional isolator

Info

Publication number
GB2564410A9
GB2564410A9 GB1710911.7A GB201710911A GB2564410A9 GB 2564410 A9 GB2564410 A9 GB 2564410A9 GB 201710911 A GB201710911 A GB 201710911A GB 2564410 A9 GB2564410 A9 GB 2564410A9
Authority
GB
United Kingdom
Prior art keywords
springs
isolator
series
torsional vibration
pulley
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Withdrawn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
GB1710911.7A
Other versions
GB201710911D0 (en
GB2564410A (en
Inventor
Harry Colford Terence
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.)
Terence Colford Consulting
Original Assignee
Terence Colford Consulting
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 Terence Colford Consulting filed Critical Terence Colford Consulting
Priority to GB1710911.7A priority Critical patent/GB2564410A/en
Publication of GB201710911D0 publication Critical patent/GB201710911D0/en
Publication of GB2564410A publication Critical patent/GB2564410A/en
Publication of GB2564410A9 publication Critical patent/GB2564410A9/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Withdrawn legal-status Critical Current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
    • F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
    • F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
    • F16F15/124—Elastomeric springs
    • 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
    • F16F15/1407—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 the rotation being limited with respect to the driving means
    • F16F15/1414—Masses driven by elastic elements
    • F16F15/1435—Elastomeric springs, i.e. made of plastic or rubber
    • 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
    • F16F15/1407—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 the rotation being limited with respect to the driving means
    • F16F15/1414—Masses driven by elastic elements
    • F16F15/1435—Elastomeric springs, i.e. made of plastic or rubber
    • F16F15/1442—Elastomeric springs, i.e. made of plastic or rubber with a single mass

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
  • Pulleys (AREA)

Abstract

A torsional vibration isolator for attenuating crankshaft front-end vibration, and a powertrain system or vehicle incorporating such an isolator are provided. The torsional vibration isolator 21 comprises at least two springs 1a, 1b in series, the springs being rigidly attached together via an intermediate plate 4, and being arranged as either bush construction springs in series, or circular sandwich springs in series. The spring 1a is connected to a hub 3, and the spring 1b is connected to a pulley 2. The springs 1a, 1b may be formed from resilient elastomeric material. The vibrational isolator can be typically located between a crankshaft (not illustrated) and a front-end-accessory-drive (FEAD) belt, the belt being located on the pulley 2, and attenuates torsional vibration therebetween.
GB1710911.7A 2017-07-06 2017-07-06 Elastomeric torsional isolator Withdrawn GB2564410A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1710911.7A GB2564410A (en) 2017-07-06 2017-07-06 Elastomeric torsional isolator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1710911.7A GB2564410A (en) 2017-07-06 2017-07-06 Elastomeric torsional isolator

Publications (3)

Publication Number Publication Date
GB201710911D0 GB201710911D0 (en) 2017-08-23
GB2564410A GB2564410A (en) 2019-01-16
GB2564410A9 true GB2564410A9 (en) 2019-05-22

Family

ID=59676550

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1710911.7A Withdrawn GB2564410A (en) 2017-07-06 2017-07-06 Elastomeric torsional isolator

Country Status (1)

Country Link
GB (1) GB2564410A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7604193U1 (en) * 1976-02-13 1977-10-27 Fa. Carl Freudenberg, 6940 Weinheim Torsional vibration damper
DE4025848A1 (en) * 1990-08-16 1992-02-20 Pahl Gummi Asbest TURNING VIBRATION
JP4232620B2 (en) * 2003-10-31 2009-03-04 株式会社フコク Isolation pulley
US9581233B2 (en) * 2014-06-09 2017-02-28 Dayco Ip Holdings, Llc Torsional vibration damper with an interlocked isolator
WO2017035515A1 (en) * 2015-08-27 2017-03-02 Dayco Ip Holdings, Llc Torsional vibration dampers having a hub with spokes acting as a second spring in series with an elastomeric member

Also Published As

Publication number Publication date
GB201710911D0 (en) 2017-08-23
GB2564410A (en) 2019-01-16

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)