US 9,353,794 B2Granted

Converter collar bearing for a torque converter

AssigneeSchaeffler Technologies AG & Co. KG

InventorsAlexander Pabst, Frank Beeck

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Abstract

A bearing position for a torque converter, wherein a pump impeller is connected to a converter neck, and the pump impeller is rotatably mounted on the bearing position by at least one roller bearing in a housing, wherein the roller bearing comprises an outer rolling raceway, assigned to the converter neck and facing radially outwards, and an inner rolling raceway, assigned to the housing and facing radially inwards, and rollers disposed radially between the rolling raceways, wherein the bearing position comprises at least one radially elastically designed section of a sleeve of the roller bearing, where the sleeve is provided with the inner rolling raceway, wherein the section, enclosing an elastic convex raceway curvature, is resiliently prestressed in the radial direction against at least a first roller of the rollers, the first roller supported on the outer rolling raceway, and supported in the opposite radial direction on the housing.

Claims11

Dependent claims

A torque converter, comprising:

a housing;
a bore arranged within the housing;
a converter neck elastically supported on the housing;
a pump impeller non-rotatably connected to the converter neck;
a bearing position, comprising:
a sleeve comprising:
a first section having a first wall thickness, comprising:
a first non-circular region forming a first gap with the housing;
a second non-circular region forming a second gap with the housing;
and,
a first circular region circumferentially between the first and second non-circular regions having continuous contact with the bore;
and,
a second section having a second wall thickness, the first wall thickness being less than the second wall thickness, the second section comprising:
a second circular region circumferentially between the first and second non-circular regions and diametrically opposed to the first circular region, the second circular region having continuous contact with the bore;
wherein the first circular region is substantially shorter than the second circular region;
at least one roller bearing comprising:
an inner rolling raceway;
an outer rolling raceway non-rotatably secured to the converter neck;
and,
at least one roller supported on the outer rolling raceway and the sleeve;
wherein the pump impeller is rotatably mounted to the bearing position via the at least one roller bearing;
and,
an elastic convex raceway curvature enclosed via the first section of the sleeve and the inner rolling raceway;
wherein the elastic convex raceway curvature is resiliently pre-stressed in a first radial direction against the at least one roller and supported in a second radial direction, opposite the first radial direction, against the housing.

21 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/487,469Filed 16 Sep 2014 · continuation
Priority: DE 10 2012 207 07427 Apr 2012
Published: US 2015/0055908 A126 Feb 2015
Granted: 31 May 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

F16C 33/588
Raceways; Race rings: races of sheet metal
F16C 19/26
For radial load mainly: with a single row of rollers
F16C 19/466
With one row or needles: comprising needle rollers and an outer ring, i.e. subunit without inner ring
F16C 27/04
Elastic or yielding bearings or bearing supports, for exclusively rotary movement: ball or roller bearings, e.g. with resilient rolling bodies