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US4009570A Expired / Lapsed US ⏱️ 0.0 years remaining

Torque converter

Assignee: Exedy Corp
•
Filing: 1975-11-13
•
Granted: 1977-03-01
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Expires: 1995-11-13
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Abstract

Abstract A torque converter comprises a vaned rotary impeller shell secured to the flywheel of a motor for driving the same, a vaned rotary turbine component secured to a turbine shaft which constitutes the output of the converter as a result of the torque conversion which takes place between the impeller and turbine vanes, and a vaned stator component located between the impeller and turbine vanes and which is coupled to a stator shaft surrounding the turbine shaft by means of a one-way clutch. In order to permit the one-way clutch to be easily removed, the impeller shell includes a removable hub portion secured by means of a ring of bolts to a flange on the impeller shell and this flange is dimensioned in such manner that its internal diameter is greater than the external diameter of the one-way clutch. Thus when the impeller hub is removed, the one-way clutch can be slid axially from its operating position and removed through the opening created by removal of the hub.

Inventors

  • 👤 Masahiro Ohkuoo
  • 👤 Heiji Fukutake

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 21:02
CPC Classifications
F; F16; F16H; F16H41/00; F16H41/24; F16H2041/246

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 140 words
A torque converter comprising a driving vaned impeller including a shell to which the vanes are secured, a driven vaned turbine fixed to a driven shaft, a vaned stator disposed intermediate said vaned impeller and vaned turbine, said vaned stator being fitted to a fixed stator shaft by means of a one-way clutch, a reinforcing impeller flange fixed to the inner peripheral part of said impeller shell, said impeller flange having an inner diameter larger than the outer diameter of said one-way clutch, and an impeller hub located at the inner side of said impeller flange, said hub including a guide pipe and being removably secured to said impeller flange by a plurality of bolts, and said one-way clutch being easily installable and removable from the converter by axial movement through said impeller flange following removal of only said hub.
Claim 2
Dependent Claim 140 words
A torque converter comprising a driving vaned impeller including a shell to which the vanes are secured, a driven vaned turbine fixed to a driven shaft, a vaned stator disposed intermediate said vaned impeller and vaned turbine, said vaned stator being fitted to a fixed stator shaft by means of a one-way clutch, a reinforcing impeller flange fixed to the inner peripheral part of said impeller shell, said impeller flange having an inner diameter larger than the outer diameter of said one-way clutch, and an impeller hub located at the inner side of said impeller flange, said hub including a guide pipe and being removably secured to said impeller flange by a plurality of bolts, and said one-way clutch being easily installable and removable from the converter by axial movement through said impeller flange following removal of only said hub.

References Cited (Backward Citations)

US3125857A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-02-29 1980-08-30 1981-03-01 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-02-29 1984-08-30 1985-03-01 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-02-29 1988-08-30 1989-03-01 $7700.00 Window Closed / Lapsed

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