US1785338A - Torque-impulse multiplier - Google Patents
Torque-impulse multiplier Download PDFInfo
- Publication number
- US1785338A US1785338A US440856A US44085630A US1785338A US 1785338 A US1785338 A US 1785338A US 440856 A US440856 A US 440856A US 44085630 A US44085630 A US 44085630A US 1785338 A US1785338 A US 1785338A
- Authority
- US
- United States
- Prior art keywords
- torque
- shaft
- multiplier
- weights
- impulse
- 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 - Lifetime
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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
- F16H—GEARING
- F16H33/00—Gearings based on repeated accumulation and delivery of energy
- F16H33/02—Rotary transmissions with mechanical accumulators, e.g. weights, springs, intermittently-connected flywheels
- F16H33/04—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought
- F16H33/08—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought based essentially on inertia
- F16H33/14—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought based essentially on inertia having orbital members influenced by regulating masses
- F16H33/18—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought based essentially on inertia having orbital members influenced by regulating masses of which the motion is constrained
- F16H33/185—Gearings for conveying rotary motion with variable velocity ratio, in which self-regulation is sought based essentially on inertia having orbital members influenced by regulating masses of which the motion is constrained the masses being fixed to the orbital members
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/21—Elements
- Y10T74/2173—Cranks and wrist pins
- Y10T74/2183—Counterbalanced
- Y10T74/2184—Vibration dampers
Definitions
- This invention relates to a torque impulse multiplier for combustion engines, and it is particularly well adapted for automotive use.
- An object of this invention is to provide a devlce of simple and efficient design, which when attached to a combustion engine, will multiply the number of torque impulses de- -the accompanying drawing, in which Figure 1 is a cross sectional assembly view, showing the device as viewed from one side.
- Figure 2 is an end view taken along the line 11 of Fig. 1.
- Figure 3 is a diagrammatic showing of impulses during a revolution.
- FIG 4 shows torque impulses as delivered by.a combustion engine, and the torque impulses. as delivered by the same engine with the torque impulse multiplier in operation.
- the drive shaft 1 is driven by engine crankshaft 2, and is rotatably mounted in engine frame 3.
- the central gear 4 is rigidly connected to frame 3.
- Thecarrier 5 is rigidly connected to shaft 1, and carries planetary gears 6 and 7, which gears are connectedthrough shafts 8 and 9, to the eccentric weights10 and 11.
- gears 6 and 7 will be caused to rotate on their axes and also about the main axis of shaft 1. Since weights 10 and 11 must rotate with these gears, these weights will be caused to move inward toward the axis of shaft 1, and then outward again, and this inward and outward movement of weights 10 and 11 will continue during the rotation of shaft 1.
- shaft 1 is driven by an engine that delivers two power impulses per revolution, Y and refer to Figure 3.
- the period from A to Bis the time of maximum engine torque during one impulse, and assume this period averages 40 foot pounds torque.
- the weights 10 and 11 are so timed that during this period these weights will be drawn from outward to inward position, and assume it requires 20 00. foot pounds torque to pull these weights inward. This will leave a torque of 20 foot pounds effective to shaft 1.
- the weights will swing outward with a 20 foot pound torque, and consequently the torque from B to C is substantially equal to that ,of A B.
- a torque impulse multiplier comprising a planet carrier, planetary gears rotatably carried by said planet carrier, a mass member operatively secured to said planetary gears, and a non-rotatable gear meshing with said planetary gears.
- a torque impulse multiplier a planet carrier, stub shafts rotatably mounted in said planet carrier, planetary gears secured to one end of each stub shaft, eccentrically disposed weights secured to the other ends of said stub shafts, and a non-rotatable gear in mesh with said planetary gears.
- a drive a shaft, a planet carrier secured to said drive shaft, stub shafts rotatably mounted in said planet carrier, planetary gears secured to one end of each stub shaft, eccentrically disposed wei hts secured to the other ends of each stub sha t, and a central gear rotatably mounted on said drive shaft and secured against rotation.
- a planetary gear train operatively mounted on said drive shaft, an inertia mass member movable synchronously with the planetary portion of said planetary gear train, and means for securing the remaining portionof said planetary gear train against rotation.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Description
Dec. 16, 1930. G. B. COLEMAN 1,735,338
TORQUE IMPULSE MULTIPLIER Filed April 1, 1950 INVENTOR.
A TTORNEY.
outward position.
Patented Dec. 16, 1930 UNITED STATES B. COLEMAN, OF DETROIT, MICHIGAN TORQUE-IMPULSE MULTIPLIER Application filed April 1,
This invention relates to a torque impulse multiplier for combustion engines, and it is particularly well adapted for automotive use.
An object of this invention is to provide a devlce of simple and efficient design, which when attached to a combustion engine, will multiply the number of torque impulses de- -the accompanying drawing, in which Figure 1 is a cross sectional assembly view, showing the device as viewed from one side.
Figure 2 is an end view taken along the line 11 of Fig. 1.
Figure 3 is a diagrammatic showing of impulses during a revolution.
Figure 4 shows torque impulses as delivered by.a combustion engine, and the torque impulses. as delivered by the same engine with the torque impulse multiplier in operation.
The drive shaft 1 is driven by engine crankshaft 2, and is rotatably mounted in engine frame 3. The central gear 4 is rigidly connected to frame 3. Thecarrier 5 is rigidly connected to shaft 1, and carries planetary gears 6 and 7, which gears are connectedthrough shafts 8 and 9, to the eccentric weights10 and 11.
If shaft 1 be rotated, gears 6 and 7 will be caused to rotate on their axes and also about the main axis of shaft 1. Since weights 10 and 11 must rotate with these gears, these weights will be caused to move inward toward the axis of shaft 1, and then outward again, and this inward and outward movement of weights 10 and 11 will continue during the rotation of shaft 1.
Sinceweights 10 and 11 are rotating about the main axis of shaft 1, at the same time they are rotating about their own axes, centrifugal force will tend to keep them in their This centrifugal force will retard their inward movement, but will 1930. Serial No. 440,856.
impel their outward movement. Now assume that shaft 1 is driven by an engine that delivers two power impulses per revolution, Y and refer to Figure 3. The period from A to Bis the time of maximum engine torque during one impulse, and assume this period averages 40 foot pounds torque. The weights 10 and 11 are so timed that during this period these weights will be drawn from outward to inward position, and assume it requires 20 00. foot pounds torque to pull these weights inward. This will leave a torque of 20 foot pounds effective to shaft 1. During theperiod from B to C the weights will swing outward with a 20 foot pound torque, and consequently the torque from B to C is substantially equal to that ,of A B. During the period from C to D the weights are again pulled in against centrifugal force, with aresulting torque of 20 foot pounds effective at shaft 1. During the period from D to A, the weights are again pulled outward by centrifugal force, with the resulting torque of 20 foot pounds during period D A. It will be seen that the torque is substantially 20 foot pounds at any period of a revolution, while without the torque impulse multiplier, the torque would be 40 pounds between A and B, and C and D and practically nil between B and C, and D and A. In Figure 4 curve 12 shows the torque curve of the engine alone, and straight line 13 shows the torque curve with this device.
In the past it has been necessary to use heavy fly wheels to smooth out the torque curve of combustion engines, but it has been found that if a sufficiently heavy flywheel were used the automobile would be sluggish.
Consequently the present tendency istoward 8 and even 16 cylinder engines, which employ lighter weight flywheels and more torque impulses.
\Yith this invention a 4 cylinder engine of inexpensive design will produce the same results as an eight cylinder engine of more complicated and costly design. I It is obvious that a number of changes or modifications as to the details of my invention might be made without affecting the spirit of the invention or the scope of the claims.
I claim:
1. A torque impulse multiplier comprising a planet carrier, planetary gears rotatably carried by said planet carrier, a mass member operatively secured to said planetary gears, and a non-rotatable gear meshing with said planetary gears.
2. In a torque impulse multiplier, a planet carrier, stub shafts rotatably mounted in said planet carrier, planetary gears secured to one end of each stub shaft, eccentrically disposed weights secured to the other ends of said stub shafts, and a non-rotatable gear in mesh with said planetary gears.
3. In a torque impulse multiplier, a drive a shaft, a planet carrier secured to said drive shaft, stub shafts rotatably mounted in said planet carrier, planetary gears secured to one end of each stub shaft, eccentrically disposed wei hts secured to the other ends of each stub sha t, and a central gear rotatably mounted on said drive shaft and secured against rotation.
' 4. In a torque impulse multiplier, a source of power, a drive shaft secured thereto, a
a planetary gear train operatively mounted on said drive shaft, an inertia mass member movable synchronously with the planetary portion of said planetary gear train, and means for securing the remaining portionof said planetary gear train against rotation. GEORGE B. COLEMAN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US440856A US1785338A (en) | 1930-04-01 | 1930-04-01 | Torque-impulse multiplier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US440856A US1785338A (en) | 1930-04-01 | 1930-04-01 | Torque-impulse multiplier |
Publications (1)
Publication Number | Publication Date |
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US1785338A true US1785338A (en) | 1930-12-16 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US440856A Expired - Lifetime US1785338A (en) | 1930-04-01 | 1930-04-01 | Torque-impulse multiplier |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2692517A (en) * | 1951-06-09 | 1954-10-26 | Thomas M O'hara | Variable speed coupling |
US2891420A (en) * | 1955-06-20 | 1959-06-23 | Russell H Simmons | Speed responsive power transmission |
US2894417A (en) * | 1957-11-08 | 1959-07-14 | Virgil E Boling | Variable speed transmission |
US4320671A (en) * | 1978-05-25 | 1982-03-23 | Curasi Robert R | Crankshaft counterbalancing |
US4342492A (en) * | 1979-05-14 | 1982-08-03 | Potomac Applied Mechanics, Inc. | Portable article supporting container |
US4489683A (en) * | 1982-04-30 | 1984-12-25 | General Motors Corporation | Engine with crank mounted balancer for secondary shaking forces |
US4744268A (en) * | 1986-10-30 | 1988-05-17 | Eugene Kurywczak | Epicycle power amplifier |
US20070179012A1 (en) * | 2006-01-31 | 2007-08-02 | Honda Motor Co., Ltd. | Variable flywheel mechanism and flywheel apparatus |
US20170021713A1 (en) * | 2013-12-20 | 2017-01-26 | Valeo Embrayages | Transmission assembly for a hybrid vehicle equipped with a pendulum damper |
-
1930
- 1930-04-01 US US440856A patent/US1785338A/en not_active Expired - Lifetime
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2692517A (en) * | 1951-06-09 | 1954-10-26 | Thomas M O'hara | Variable speed coupling |
US2891420A (en) * | 1955-06-20 | 1959-06-23 | Russell H Simmons | Speed responsive power transmission |
US2894417A (en) * | 1957-11-08 | 1959-07-14 | Virgil E Boling | Variable speed transmission |
US4320671A (en) * | 1978-05-25 | 1982-03-23 | Curasi Robert R | Crankshaft counterbalancing |
US4342492A (en) * | 1979-05-14 | 1982-08-03 | Potomac Applied Mechanics, Inc. | Portable article supporting container |
US4489683A (en) * | 1982-04-30 | 1984-12-25 | General Motors Corporation | Engine with crank mounted balancer for secondary shaking forces |
US4744268A (en) * | 1986-10-30 | 1988-05-17 | Eugene Kurywczak | Epicycle power amplifier |
US20070179012A1 (en) * | 2006-01-31 | 2007-08-02 | Honda Motor Co., Ltd. | Variable flywheel mechanism and flywheel apparatus |
US7594871B2 (en) * | 2006-01-31 | 2009-09-29 | Honda Motor Co., Ltd. | Variable flywheel mechanism and flywheel apparatus |
US20170021713A1 (en) * | 2013-12-20 | 2017-01-26 | Valeo Embrayages | Transmission assembly for a hybrid vehicle equipped with a pendulum damper |
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