US3888082A
Expired / Lapsed
US
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Hydrodynamic torque converter
Assignee: Rolls Royce Solutions GmbH
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Filing: 1974-03-22
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Granted: 1975-06-10
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Expires: 1994-03-22
Abstract
Abstract A hydrodynamic torque converter for relatively large power outputs which includes a centrifugally transversed pump wheel and a centripetally traversed turbine wheel, both equipped with blades having a single curvature and flat and/or conical wheel side walls, a turbine wheel outlet diameter approximately equal to the inlet diameter of the pump wheel and a guide wheel arranged directly upstream of the pump wheel and a further guide wheel arranged directly downstream of the turbine wheel; the radial length of the turbine blading is larger than 15 percent of the middle diameter of the turbine blading while the blade spacing of the turbine wheel at the middle diameter of the turbine blading amounts to about 30 to 50 percent of the radial length of the turbine blades and the interior width of each blade flow channel at the outlet of the turbine wheel is smaller than 35 percent of the blade spacing.
Inventors
- 👤 Karl Haide
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:38
CPC Classifications
F; F16; F16H; F16H41/00; F16H41/24; F16H41/26; F16H61/00; F16H61/38; F16H61/48; F16H61/50
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
177 words
A hydrodynamic torque converter including a pump wheel means centrifugally traversed and a turbine wheel means centripetally traversed, both the pump and turbine wheel means having blade means and wheel side walls, the turbine wheel outlet diameter being approximately equal to the pump wheel inlet diameter, and first guide wheel means arranged substantially directly upstream of the pump wheel means as viewed in the flow direction and a further guide wheel means arranged substantially directly downstream of the turbine wheel means, characterized in that a. the radial lenght (LT) of the turbine blade means is larger than about 15 percent of the middle diameter (DTM) of the turbine blade means; b. the blade spacing of the turbine wheel means at the middle diameter thereof amounts to about 30 percent to about 50 percent of the radial length of the turbine wheel blade means, and c. the interior width (lWA) of each blade flow channel at the outlet of the turbine wheel means being smaller than about 35 percent of the blade spacing of the turbine wheel means.
Claim 2
Dependent Claim
177 words
A hydrodynamic torque converter including a pump wheel means centrifugally traversed and a turbine wheel means centripetally traversed, both the pump and turbine wheel means having blade means and wheel side walls, the turbine wheel outlet diameter being approximately equal to the pump wheel inlet diameter, and first guide wheel means arranged substantially directly upstream of the pump wheel means as viewed in the flow direction and a further guide wheel means arranged substantially directly downstream of the turbine wheel means, characterized in that a. the radial lenght (LT) of the turbine blade means is larger than about 15 percent of the middle diameter (DTM) of the turbine blade means; b. the blade spacing of the turbine wheel means at the middle diameter thereof amounts to about 30 percent to about 50 percent of the radial length of the turbine wheel blade means, and c. the interior width (lWA) of each blade flow channel at the outlet of the turbine wheel means being smaller than about 35 percent of the blade spacing of the turbine wheel means.
Claim 3
Dependent Claim
29 words
A hydrodynamic torque converter according to claim 1, characterized in that the blade means of the pump wheel means and of the turbine wheel means have a single curvature.
Claim 4
Dependent Claim
22 words
A hydrodynamic torque converter according to claim 2, characterized in that the blade means of both guide wheel means have single curvature.
Claim 5
Dependent Claim
20 words
A hydrodynamic torque converter according to claim 3, characterized in that at least some of the side walls are plane.
Claim 6
Dependent Claim
21 words
A hydrodynamic torque converter according to claim 3, characterized in that at least some of the wheel side walls are conical.
Claim 7
Dependent Claim
46 words
A hydrodynamic torque converter according to claim 1, characterized in that the blade spacing of the turbine wheel means amounts at the middle diameter of the turbine blade means between about 37 percent and about 42 percent of the radial length of the turbine blade means.
Claim 8
Dependent Claim
46 words
A hydrodynamic torque converter according to claim 6, characterized in that the interior width of each blade flow channel amounts at the outlet of the turbine wheel means to about between 22 percent and about 30 percent of the blade spacing of the turbine wheel means.
Claim 9
Dependent Claim
44 words
A hydrodynamic torque converter according to claim 7, characterized in that the interior width (1Wm) of the turbine blade flow channels at the middle diameter of the turbine blade means amounts to about 40 percent to about 50 percent of the turbine blade spacing.
Claim 10
Dependent Claim
61 words
A hydrodynamic torque converter according to claim 8, characterized in that the width (b) of the blade flow channels of the turbine wheel means at the middle diameter of the turbine blade means is at least substantially equal to 8 percent of the sum of the interior widths of the blade flow channels at the outlet Of the turbine wheel means.
Claim 11
Dependent Claim
57 words
A hydrodynamic torque converter according to claim 9, characterized in that the width of the blade flow channels of the turbine wheel means at the middle diameter of the turbine blade means is larger than 8 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 12
Dependent Claim
47 words
A hydrodynamic torque converter according to claim 8, characterized in that the substantially constant width of the blade flow channels is at least equal to 8 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 13
Dependent Claim
45 words
A hydrodynamic torque converter according to claim 11, characterized in that the substantially constant width of the blade flow channels is larger than 8 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 14
Dependent Claim
61 words
A hydrodynamic torque converter according to claim 9, characterized in that the width of the blade flow channels of the turbine wheel means at the middle diameter of the turbine blade means is about between 9 percent to about 15 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 15
Dependent Claim
48 words
A hydrodynamic torque converter according to claim 11, characterized in that the substantially constant width of the blade flow channels is about 9 percent to about 15 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 16
Dependent Claim
30 words
A hydrodynamic torque converter according to claim 8, characterized in that the first guide wheel means arranged directly upstream of the pump wheel means includes blade means pivotal in operation.
Claim 17
Dependent Claim
61 words
A hydrodynamic torque converter according to claim 15, characterized in that the width (b) of the blade flow channels of the turbine wheel means at the middle diameter of the turbine blade means is at least substantially equal to 8 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 18
Dependent Claim
57 words
A hydrodynamic torque converter according to claim 16, characterized in that the width of the blade flow channels of the turbine wheel means at the middle diameter of the turbine blade means is larger than 8 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 19
Dependent Claim
61 words
A hydrodynamic torque converter according to claim 15, characterized in that the width of the blade flow channels of the turbine wheel means at the middle diameter of the turbine blade means is about between 9 percent to about 15 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 20
Dependent Claim
47 words
A hydrodynamic torque converter according to claim 15, characterized in that the substantially constant width of the blade flow channels is at least equal to 8 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 21
Dependent Claim
45 words
A hydrodynamic torque converter according to claim 19, characterized in that the substantially constant width of the blade flow channels is larger than 8 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 22
Dependent Claim
48 words
A hydrodynamic torque converter according to claim 15, characterized in that the substantially constant width of the blade flow channels is about 9 percent to about 15 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 23
Dependent Claim
29 words
A hydrodynamic torque converter according to claim 6, characterized in that the blade means of the pump wheel means and of the turbine wheel means have a single curvature.
Claim 24
Dependent Claim
42 words
A hydrodynamic torque converter according to claim 1, characterized in that the interior width of each blade flow channel amounts at the outlet of the turbine wheel means to about between 22 percent and about 30 percent of the turbine blade spacing.
Claim 25
Dependent Claim
44 words
A hydrodynamic torque converter according to claim 23, characterized in that the interior width (lWm) of the turbine blade flow channels at the middle diameter of the turbine blade means amounts to about 40 percent to about 50 percent of the turbine blade spacing.
Claim 26
Dependent Claim
61 words
A hydrodynamic torque converter according to claim 1, characterized in that the width (b) of the blade flow channels of the turbine wheel means at the middle diameter of the turbine blade means is at least substantially equal to 8 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 27
Dependent Claim
57 words
A hydrodynamic torque converter according to claim 25, characterized in that the width of the blade flow channels of the turbine wheel means at the middle diameter of the turbine blade means is larger than 8 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 28
Dependent Claim
47 words
A hydrodynamic torque converter according to claim 1, characterized in that the substantially constant width of the blade flow channels is at least equal to 8 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 29
Dependent Claim
45 words
A hydrodynamic torque converter according to claim 27, characterized in that the substantially constant width of the blade flow channels is larger than 8 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 30
Dependent Claim
61 words
A hydrodynamic torque converter according to claim 1, characterized in that the width of the blade flow channels of the turbine wheel means at the middle diameter of the turbine blade means is about between 9 percent to about 15 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 31
Dependent Claim
48 words
A hydrodynamic torque converter according to claim 1, characterized in that the substantially constant width of the blade flow channels is about 9 percent to about 15 percent of the sum of the interior widths of the blade flow channels at the outlet of the turbine wheel means.
Claim 32
Dependent Claim
30 words
A hydrodynamic torque converter according to claim 1, characterized in that the first guide wheel means arranged directly upstream of the pump wheel means includes blade means pivotal in operation.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-09 | 1978-12-09 | 1979-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-09 | 1982-12-09 | 1983-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-09 | 1986-12-09 | 1987-06-10 | $7700.00 | Window Closed / Lapsed |