# US 10,309,454 B2 · Squeeze film damper bearing device

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- Number: US 10,309,454 B2
- Document ID: US10309454B2
- Status: Granted
- Kind: B2
- Application number: 15/898,914
- Filed: 2018-02-19
- Published: 2018-08-30
- Granted: 2019-06-04
- Earliest claimed: 2017-02-24
- Assignees: Honda Motor Co., Ltd.
- Applicants: Honda Motor Co., Ltd.
- Inventors: Keisuke Takaoka
- Web page: https://patentgrep.com/patent/US10309454B2

## CPC

- F16C 27/045: {with a fluid film, e.g. squeeze film damping}
- F01D 25/164: {Flexible supports; Vibration damping means associated with the bearing}
- F16C 19/06: with a single row or balls
- F16C 19/55: with intermediate floating {or independently-driven} rings rotating at reduced speed {or with other differential ball or roller bearings}
- F16C 35/063: Fixing them on the shaft (with interposition of an element F16C35/07)
- F16C 41/00: Other accessories, {e.g. devices integrated in the bearing not relating to the bearing function as such}
- F16F 15/0237: {involving squeeze-film damping}
- F01D 25/183: {Sealing means}
- F05D 2240/55: Seals
- F16C 37/002: {of fluid bearings}
- F16C 2226/60: with threaded parts, e.g. bolt and nut connections
- F16C 2233/00: Monitoring condition, e.g. temperature, load, vibration
- F16C 2360/23: Gas turbine engines
- F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F01D: NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES (machines or engines for liquids F03; non-positive displacement pumps F04D)
- F16F: SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS

## Abstract

A squeeze film damper bearing device includes an inner race that is fitted around an outer periphery of a rotating shaft, an outer race that is supported via an annular space on an inner periphery of a bearing sleeve provided on a bearing retaining member, the annular space forming a squeeze film, and a plurality of rolling bodies that are disposed between the inner race and the outer race. The bearing sleeve is formed from a plurality of sleeve elements that are divided in a peripheral direction, and the plurality of sleeve elements move in a radial direction so as to be capable of changing a height in the radial direction of the annular space.

## Claims

### Claim 1

A squeeze film damper bearing device comprising an inner race that is fitted around an outer periphery of a rotating shaft, an outer race that is supported via an annular space on an inner periphery of a bearing sleeve provided on a bearing retaining member, the annular space forming a squeeze film, and a plurality of rolling bodies that are disposed between the inner race and the outer race,
wherein the bearing sleeve is formed from a plurality of sleeve elements that are spaced in a peripheral direction, and the plurality of sleeve elements move in a radial direction so as to be capable of changing a height in the radial direction of the annular space.

### Claim 2 (depends on 1)

The squeeze film damper bearing device according to claim 1, wherein a guide pin that projects radially outward from an outer periphery of each of the plurality of sleeve elements is slidably fitted into a respective guide hole extending through the bearing retaining member in the radial direction, a pair of return springs extending in the radial direction are disposed between opposite end parts in the peripheral direction of each of the plurality of sleeve elements and respective spring seats projecting radially outward from an inner periphery of the bearing retaining member, and a drive mechanism that makes each of the plurality of sleeve elements move in the radial direction is connected to an outer end in the radial direction of each guide pin.

### Claim 3 (depends on 2)

The squeeze film damper bearing device according to claim 2, further comprising a vibration sensor that detects vibration of the rotating shaft, and a controller that controls operation of the drive mechanism according to vibration of the rotating shaft detected by the vibration sensor.

### Claim 4 (depends on 1)

The squeeze film damper bearing device according to claim 1, further comprising a vibration sensor that detects vibration of the rotating shaft, and a controller that controls operation of a drive mechanism that makes each of the plurality of sleeve elements move in the radial direction according to vibration of the rotating shaft detected by the vibration sensor.