GB947517A - Improvements in or relating to vibration dampers on the crankshafts of fan-cooled internal combustion engines - Google Patents

Improvements in or relating to vibration dampers on the crankshafts of fan-cooled internal combustion engines

Info

Publication number
GB947517A
GB947517A GB1260760A GB1260760A GB947517A GB 947517 A GB947517 A GB 947517A GB 1260760 A GB1260760 A GB 1260760A GB 1260760 A GB1260760 A GB 1260760A GB 947517 A GB947517 A GB 947517A
Authority
GB
United Kingdom
Prior art keywords
fan
bolt
damper
vibration damper
april
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
GB1260760A
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.)
Bayerische Motoren Werke AG
Original Assignee
Bayerische Motoren Werke AG
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
Priority claimed from DEB52952A external-priority patent/DE1123511B/en
Application filed by Bayerische Motoren Werke AG filed Critical Bayerische Motoren Werke AG
Publication of GB947517A publication Critical patent/GB947517A/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
    • 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
    • F16F15/126—Elastomeric springs consisting of at least one annular element surrounding the axis of rotation
    • 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)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Pulleys (AREA)

Abstract

947,517. Torsional vibration dampers; securing fans on shafts; bolts. BAYERISCHE MOTOREN WERKE A.G. April 8, 1960 [April 8,1959: April 23, 1959], No. 12607/60. Headings F2H, F2S and F2U. [Also in Division F1] A torsional vibration damper 7, Fig. 1, is attached by a bolt 9 to the end of a crankshaft 1 of an air-cooled engine and is arranged coaxially with and adjacent the air inlet duct 5<SP>1</SP> of the cooling fan 5. The single bolt 9 retains the electric generator 2, the fan 5 and the vibration damper 7 on the end of the crank-shaft 1. The generator 2 is mounted directly on the tapered end of the crank-shaft 1 and has a flange 4 on which the fan 5 is centred and bolted as at 4a. A central hole 5<SP>11</SP> in the fan 5 locates the hub 6 of the vibration damper 7, which is mounted on an enlarged centring stem 9<SP>11</SP> of the bolt 9 and is held against a washer 8 within the locating hole 5<SP>11</SP>. The damper comprises an annular inertia member 7 mounted on the hub 6 with an intermediate elastic ring 10 and retained between a flange 6<SP>11</SP> and end plate 6<SP>1</SP> with intermediate friction discs 11. The ring 10 may be of a material which is highly resistant to abrasion, such as polyurethane and the friction discs may be of low friction, laminated plastic material. In another arrangement, a modified central bolt 12, Fig. 2, has a disc portion 12<SP>1</SP> which is centrally located in the aperture 5<SP>11</SP> of the fan 5 and carries a modified vibration damper 18 on an extension 13 on which the damper sleeve 15 is retained by a nut 16 on the threaded extension 14 of the bolt 12. In this example the inertia member 18 of the damper is resiliently mounted on an elastic sleeve 19 which is vulcanised to a disc 17 welded on the sleeve 15.
GB1260760A 1959-04-08 1960-04-08 Improvements in or relating to vibration dampers on the crankshafts of fan-cooled internal combustion engines Expired GB947517A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1959B0036936 DE1789421U (en) 1959-04-08 1959-04-08 VIBRATION DAMPER ARRANGEMENT ON CRANKSHAFT OF FAN COOLED COMBUSTION MACHINERY.
DEB52952A DE1123511B (en) 1959-04-23 1959-04-23 Vibration damper for crankshafts of internal combustion engines

Publications (1)

Publication Number Publication Date
GB947517A true GB947517A (en) 1964-01-22

Family

ID=32912537

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1260760A Expired GB947517A (en) 1959-04-08 1960-04-08 Improvements in or relating to vibration dampers on the crankshafts of fan-cooled internal combustion engines

Country Status (3)

Country Link
DE (2) DE1789421U (en)
FR (1) FR1255625A (en)
GB (1) GB947517A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015004690A1 (en) * 2013-07-11 2015-01-15 CDR ITALY DI PIETRO BARACCO E C. s.a.s Wheel for electrical transformer, assembly method and electrical transformer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT13654U1 (en) * 2012-08-03 2014-05-15 Fill Gmbh Device for processing a surface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015004690A1 (en) * 2013-07-11 2015-01-15 CDR ITALY DI PIETRO BARACCO E C. s.a.s Wheel for electrical transformer, assembly method and electrical transformer

Also Published As

Publication number Publication date
DE1791836U (en) 1959-07-09
DE1789421U (en) 1959-05-27
FR1255625A (en) 1961-03-10

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