US4449960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torque converter
Assignee: Individual
•
Filing: 1980-10-27
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Granted: 1984-05-22
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Expires: 2000-10-27
Abstract
Abstract A torque converter comprises an input member and an output member that can be interconnected by a planetary gear arrangement. A planet carrier of the planetary gear arrangement can be driven by the input member and a sun wheel of the planetary gear arrangement can also be driven by the input member, but through an infinitely variable change-speed mechanism which includes an adjustable pulley chain-drive mechanism using a chain. A preferred construction for the chain includes links pivoted to one another by members that bear on one another with convex surfaces. The end faces of the link members are enlarged and substantially flat to engage the flanges of the adjustable pulley.
Inventors
- 👤 Cornelis van der Lely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:28
CPC Classifications
F; F16; F16G; F16G5/00; F16G5/16; F16G5/18; F16H; F16H9/00; F16H9/02; F16H9/24
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
178 words
A torque converter comprising an input shaft connected to an output shaft through a change speed mechanism, said mechanism comprising a first pair of flanges that form a pulley on said input shaft and a second pair of flanges on said output shaft that form a further pulley, at least one flange of each pair being axially displaceable relative to the other flange of said pair, an endless chain being mounted between the flanges of each pair, said chain including relatively movable links and transverse link members which connect said links to form said chain, each said link member having lugs with end faces for engaging said flanges, said end faces being substantially flat and parallel to the surface of the adjoining said flange, hydraulic means displacing said one flange of each pair in relative opposite directions, at least one of said links enclosing a space in which three said link members are located, the portion of each said link member enclosed by said link being symmetrical about a plane approximately perpendicular to the length of said chain.
Claim 2
Dependent Claim
178 words
A torque converter comprising an input shaft connected to an output shaft through a change speed mechanism, said mechanism comprising a first pair of flanges that form a pulley on said input shaft and a second pair of flanges on said output shaft that form a further pulley, at least one flange of each pair being axially displaceable relative to the other flange of said pair, an endless chain being mounted between the flanges of each pair, said chain including relatively movable links and transverse link members which connect said links to form said chain, each said link member having lugs with end faces for engaging said flanges, said end faces being substantially flat and parallel to the surface of the adjoining said flange, hydraulic means displacing said one flange of each pair in relative opposite directions, at least one of said links enclosing a space in which three said link members are located, the portion of each said link member enclosed by said link being symmetrical about a plane approximately perpendicular to the length of said chain.
Claim 3
Dependent Claim
42 words
A torque converter as claimed in claim 1, in which, viewed in a sectional plane containing the centerline of the respective shaft, the oppositely facing boundary surfaces of the flanges of each pair open an angle of about 10° to one another.
Claim 4
Dependent Claim
34 words
A torque converter as claimed in claim 1, in which at least one of said link members has a non-circular cross-section and substantially symmetrical boundary surfaces on two opposite sides surrounding said end faces.
Claim 5
Dependent Claim
19 words
A torque converter as claimed in claim 3, in which the boundary surfaces of the link members are part-cylindrical.
Claim 6
Dependent Claim
37 words
A torque converter as claimed in claim 4, in which, as viewed from the side in cross-section, the peripheral dimension of each boundary surface is larger than the peripheral dimension of the other parts of the cross-section.
Claim 7
Dependent Claim
29 words
A torque converter as claimed in claim 5, in which the length of each said other part surface, as viewed in cross-section, is about 2.5-times larger than its width.
Claim 8
Dependent Claim
21 words
A torque converter as claimed in claim 3, in which two adjacent said links are interconnected by two said link members.
Claim 9
Dependent Claim
33 words
A torque converter as claimed in claim 7, in which a said boundary surface of one of the two link members bears on a like said boundary surface of the other link member.
Claim 10
Dependent Claim
37 words
A torque converter as claimed in claim 8, in which the internal surface of each said link member facing away from the other said link member bears on an inner surface of one of said two links.
Claim 11
Dependent Claim
24 words
A torque converter as claimed in claim 9, in which the inner surface of the respective link fits around a corresponding said internal surface.
Claim 12
Dependent Claim
57 words
A torque converter as claimed in claim 3, in which one of the two internal surfaces of each link member terminates with a respective said lug whereby each said link member has two lugs and each said lug extends perpendicular to the lengthwise direction of the link member and parallel to the lengthwise direction of said chain.
Claim 13
Dependent Claim
28 words
A torque converter as claimed in claim 11, in which said lug defines each of the two said ends faces of the boundary surface of said link member.
Claim 14
Dependent Claim
19 words
A torque converter as claimed in claim 12, in which said lug contacts an outer surface of said link.
Claim 15
Dependent Claim
19 words
A torque converter as claimed in claim 11, in which said link members interconnect two groups of said links.
Claim 16
Dependent Claim
32 words
A torque converter as claimed in claim 14, in which the two said lugs of each link member embrace outer respective said links of each group of said links which they engage.
Claim 17
Dependent Claim
37 words
A torque converter as claimed in claim 15, in which said hydraulic means displaces one said flange of one said pair in a direction opposite to the other displaced flange of the other said pair of flanges.
Claim 18
Dependent Claim
25 words
A torque converter as claimed in claim 16, in which the flat surfaces of the lugs of each link member are inclined to one another.
Claim 19
Dependent Claim
24 words
A torque converter as claimed in claim 17, in which each flat surface contacts a surface of a said pulley flange of said mechanism.
Claim 20
Dependent Claim
65 words
A torque converter as claimed in claim 3, wherein two said link members in said one link are non-contacting and in which the smallest distance between said two non-contacting said link members within a said link, in cross-section, at least equals a dimension measured in the same direction of the engaging surfaces between each said link member and the corresponding said flange which it engages.
Claim 21
Dependent Claim
45 words
A torque converter as claimed in claim 19, in which, said link encloses a space and, as viewed perpendicular to the lengthwise direction of a said link, the width of said link is smaller than the largest dimension of the space enclosed by said link.
Claim 22
Dependent Claim
22 words
A torque converter as claimed in claim 20, in which the largest dimension of said space is about ten times said width.
Claim 23
Dependent Claim
22 words
A torque converter as claimed in claim 3, in which, as viewed from one side, said link has a substantially rectangular shape.
Claim 24
Dependent Claim
18 words
A torque converter as claimed in claim 22, in which three sides of said link are slightly curved.
Claim 25
Dependent Claim
16 words
A torque converter as claimed in claim 23, in which the curved sides are curved outwardly.
Claim 26
Dependent Claim
18 words
A torque converter as claimed in claim 14, in which said link members are composed of ball-bearing steel.
Claim 27
Dependent Claim
17 words
A torque converter as claimed in claim 25, in which the links are composed of spring steel.
Claim 28
Dependent Claim
172 words
A torque converter comprising an input shaft connected to an output shaft through a change-speed mechanism, said mechanism comprising a first pair of flanges that form a pulley on said input shaft and a second pair of flanges on said output shaft that form a further pulley, at least one flange of each said pair being axially displaceable relative to the other flange of said pair, an endless chain being mounted between the flanges of each said pair, said chain having links connected to one another in the lengthwise direction of the chain by two relatively movable link members, at least one of said links enclosing a space in which at least three link members are located, the portion of each link member enclosed by said links being symmetrical in a plane approximately perpendicular to the length of said chain, hydraulic means displacing said one flange of each said pair of flanges in relatively opposite directions to vary the rotational speed of said output shaft relative to that of said input shaft.
Claim 29
Dependent Claim
172 words
A torque converter comprising an input shaft connected to an output shaft through a change-speed mechanism, said mechanism comprising a first pair of flanges that form a pulley on said input shaft and a second pair of flanges on said output shaft that form a further pulley, at least one flange of each said pair being axially displaceable relative to the other flange of said pair, an endless chain being mounted between the flanges of each said pair, said chain having links connected to one another in the lengthwise direction of the chain by two relatively movable link members, at least one of said links enclosing a space in which at least three link members are located, the portion of each link member enclosed by said links being symmetrical in a plane approximately perpendicular to the length of said chain, hydraulic means displacing said one flange of each said pair of flanges in relatively opposite directions to vary the rotational speed of said output shaft relative to that of said input shaft.
Claim 30
Dependent Claim
117 words
A change speed mechanism for a torque converter which includes an input shaft and an output shaft, the change speed mechanism comprising: a first pair of flanges forming a pulley on said input shaft; a second pair of flanges forming a further pulley on said output shaft; an endless chain received around and operative connecting said pulleys; said chain having links connected to one another in the chain's lengthwise direction by two relatively movable link members, at least one of said links enclosing a space in which at least three link members are located, the portion of each link member enclosed by said links being symmetrical about a plane approximately perpendicular to the length of said chain.
Claim 31
Dependent Claim
117 words
A change speed mechanism for a torque converter which includes an input shaft and an output shaft, the change speed mechanism comprising: a first pair of flanges forming a pulley on said input shaft; a second pair of flanges forming a further pulley on said output shaft; an endless chain received around and operative connecting said pulleys; said chain having links connected to one another in the chain's lengthwise direction by two relatively movable link members, at least one of said links enclosing a space in which at least three link members are located, the portion of each link member enclosed by said links being symmetrical about a plane approximately perpendicular to the length of said chain.
References Cited (Backward Citations)
US953428A
Cited
US1692799A
Cited
US3049933A
Cited
US3016755A
Cited
US3089346A
Cited
US3596528A
Cited
US3600960A
Cited
US3600961A
Cited
US3916709A
Cited
US4125037A
Cited
US4186617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-22 | 1987-11-21 | 1988-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-22 | 1991-11-21 | 1992-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-22 | 1995-11-21 | 1996-05-22 | $7700.00 | Window Closed / Lapsed |