US 2016/0258519 A1 · TORSIONAL VIBRATION DAMPER

Abstract

A torsional vibration damper that can be arranged in a fluid coupling to downsize a powertrain is provided. The torsional vibration damper has a mass body held in a rotary member in such a manner to be oscillated by torque pulse of the rotary member. The rotary member is arranged in an internal space of a fluid coupling in which a pump impeller, a turbine runner and a predetermined stationary member are held in a casing. A planetary unit that performs a differential action among three rotary elements is arranged in the casing. In the planetary unit, a first rotary element is connected to the stationary member, a second rotary element is connected to the rotary member, and a third rotary element is connected to the turbine runner.

Claims4

Dependent claims

A torsional vibration damper having a mass body held in a rotary member in such a manner to be oscillated by torque pulse of the rotary member, wherein:

the rotary member is arranged in an internal space of a fluid coupling in which a pump impeller, a turbine runner and a predetermined stationary member are held in a casing;
a planetary unit that performs a differential action among three rotary elements is arranged in the casing;
a first rotary element of the planetary unit is connected to the stationary member;
a second rotary element of the planetary unit is connected to the rotary member;
and
a third rotary element of the planetary unit is connected to the turbine runner.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/057,232Filed 1 Mar 2016

Priority

JP 2015-0413583 Mar 2015

Published

8 Sep 2016

Term ends

Not estimatedThe source records don’t support an estimate.

Classification8 codes

F16H 45/00
Combinations of fluid gearings for conveying rotary motion with couplings or clutches
F16F 15/1457
Masses mounted with play with respect to driving means thus enabling free movement over a limited range: systems with a single mass
F16H 45/02
Combinations of fluid gearings for conveying rotary motion with couplings or clutches: with mechanical clutches for bridging a fluid gearing of…
F16H 2045/0221
With mechanical clutches for bridging a fluid gearing of the hydrokinetic type: with damping means

Torsional vibration damper

Life of this patent

Torsional vibration damper

Life of this patent

Abstract

Claims4