GB574516A - Improvements in or relating to devices for damping torsional vibration - Google Patents
Improvements in or relating to devices for damping torsional vibrationInfo
- Publication number
- GB574516A GB574516A GB1215643A GB1215643A GB574516A GB 574516 A GB574516 A GB 574516A GB 1215643 A GB1215643 A GB 1215643A GB 1215643 A GB1215643 A GB 1215643A GB 574516 A GB574516 A GB 574516A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- fly
- wheel
- shaft
- oil
- 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
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
- F16F15/1485—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 unlimited with respect to driving means
- F16F15/1492—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 unlimited with respect to driving means with a dry-friction connection
-
- 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
- F16F15/16—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material
- F16F15/167—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material having an inertia member, e.g. ring
- F16F15/173—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material having an inertia member, e.g. ring provided within a closed housing
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
574,516. Torsional vibration-dampers. BOWER, G. S. July 26, 1943, No. 12156. [Class 108 (iii)] A device for damping torsional vibrations in a rotatable member comprises a rotatable, liquid-filled, double-ended cylinder and a fly-wheel mounted in the cylinder, the cylinder or the flywheel being secured to the torsionally vibratable member so as to rotate therewith and being rotatable relatively to each other about the axis of the cylinder and constrained to move relatively axially to each other when relative rotation occurs so that the fly-wheel acts as a piston in the cylinder, a leakage passage being provided from one end of the cylinder to the other, displacement of liquid through which, by the fly-wheel, damps the vibrations. As shown, the device is applied to the cam-shaft 10 of a fuel-injection pump 11 for an internal-combustion engine, one end of the shaft projecting from the pump through a bearing 12 into a casing 13 bolted to the end of the pump and closed by a cover 14. A cylinder 15 closed by a cover 19 and containing an air bleed-hole 20 is formed with a spigot 16 having a tapered bore adapted to be keyed on the tapered end of the camshaft by splines 17 so as to rotate therewith. A sleeve 21, screwthreaded externally with a quick multi-start thread, is splined at 22 on the spiot, or formed integrally therewith, and a similarly-threaded fly-wheel 23 is mounted on the sleeve and centralised in the cylinder by springs 24, 25. The leakage passage is provided by a small clearance 26 between the periphery of the flywheel and the adjacent cylinder wall. Normally the cylinder and fly-wheel rotate as one with the cam-shaft, the fly-wheel being centralised in the cylinder. When torsional vibration of the shaft occurs, the cylinder also vibrates torsionally while the fly-wheel continues to run at constant speed and thus is caused to vibrate axially in the cylinder forcing oil through the clearance 26 which throttles the flow and damps the vibrations. The bearing 12 is lubricated by oil under pressure supplied through a connection (not shown) and a passage 27 to an oil-groove 28 from which it is forced through a passage 29 in the shaft and passage 30 in the spigot 16 and sleeve 21 to the threaded surface of the sleeve. Oil which leaks from the cylinder into the casing and lubricating oil from the pump bearing, which flows through a connection 32 into the casing, is drained therefrom through a pipe 31. In a modification (not shown) the cylinder is filled with oil and completely sealed. In another construction (not shown), the cylinder is screwthreaded internally and the fly-wheel is screwthreaded externally to screw into the cylinder. The sleeve 21 is omitted and the leakage clearance provided between the bore of the fly-wheel and the spigot 16. The spigot may, however, be omitted and the cylinder secured on the cam-shaft externally by other means, the fly-wheel being formed without a bore. Alternatively, the fly-wheel may be secured on the cam-shaft and the cylinder rotatably mounted thereon with limited freedom to move axially. In the last two modifications, the leakage passage is formed in the fly-wheel and/or the cylinder. Specification 574,517, [Group XXVII], is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1215643A GB574516A (en) | 1943-07-26 | 1943-07-26 | Improvements in or relating to devices for damping torsional vibration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1215643A GB574516A (en) | 1943-07-26 | 1943-07-26 | Improvements in or relating to devices for damping torsional vibration |
Publications (1)
Publication Number | Publication Date |
---|---|
GB574516A true GB574516A (en) | 1946-01-09 |
Family
ID=9999363
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1215643A Expired GB574516A (en) | 1943-07-26 | 1943-07-26 | Improvements in or relating to devices for damping torsional vibration |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB574516A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1292949B (en) * | 1964-07-29 | 1969-04-17 | Connor Bernard E O | Vibration damper with a ring-shaped flywheel coupled by a fluid |
FR2655117A1 (en) * | 1989-11-30 | 1991-05-31 | Valeo | Vibration damper for a rotary shaft, particularly for motor vehicles |
IT201700024112A1 (en) * | 2017-03-03 | 2018-09-03 | Agla Power Trans S P A | TORSIONAL VIBRATION DAMPER FOR SELF-MOTIONIC APPLICATIONS |
-
1943
- 1943-07-26 GB GB1215643A patent/GB574516A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1292949B (en) * | 1964-07-29 | 1969-04-17 | Connor Bernard E O | Vibration damper with a ring-shaped flywheel coupled by a fluid |
FR2655117A1 (en) * | 1989-11-30 | 1991-05-31 | Valeo | Vibration damper for a rotary shaft, particularly for motor vehicles |
IT201700024112A1 (en) * | 2017-03-03 | 2018-09-03 | Agla Power Trans S P A | TORSIONAL VIBRATION DAMPER FOR SELF-MOTIONIC APPLICATIONS |
EP3369963A1 (en) * | 2017-03-03 | 2018-09-05 | Agla Power Transmission S.p.a. | Torsional vibration damper for automotive applications |
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