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US 9,810,301 B2Granted
Torque converter in vehicle
AssigneeKorea Powertrain Co., Ltd
InventorsKi-Hyun Kwon, Gi-Woo Kim, Soon-Seok Hong
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AssigneeKorea Powertrain Co., Ltd
InventorsKi-Hyun Kwon, Gi-Woo Kim, Soon-Seok Hong
Estimating the term…
Disclosed is a torque converter in a vehicle, in which a torsional damper reduces a natural frequency and absorbs vibration energy in an anti-resonance state for enhancing a vibration isolation function. The torque converter in a vehicle includes a torsional damper including a retaining plate coupled to the piston, a plurality of springs arranged at the retaining plate for imparting elastic force in a circumferential direction, a driven plate coupled to a spline hub which acts as a reaction force on the springs and forwards driving power to a transmission, and an inertial lever arranged between the piston and the driven plate, the inertial lever including a fixed pivot coupling portion coupled to the piston with a fixed pivot and a movable pivot coupling portion coupled to the driven plate with a movable pivot.
A torque converter in a vehicle comprising:
Dependencies are inferred from the claim text.
From the US filing history. Foreign family members aren’t listed.
Combinations of fluid gearings for conveying rotary motion with couplings or clutches: with mechanical clutches for bridging a fluid gearing of…
Using springs as elastic members, e.g. metallic springs: wound springs
The rotating system comprising two or more gyratory masses: the damping action being at least partially controlled by centrifugal masses
Masses connected to driveline by a kinematic mechanism or gear system: with a kinematic mechanism, i.e. linkages, levers
About 7 years of term left · ends 4 Nov 2033 (estimated)
This application is the U.S. National Phase of PCT/KR2013/002938 filed Apr. 9, 2013, which claims priority of Korean Patent Application No. 10-2012-0136545 filed Nov. 28, 2012.
(a) Field of the Invention
The present invention relates to a torque converter in a vehicle, in which a torsional damper reduces a natural frequency and absorbs vibration energy in an anti-resonance state for enhancing a vibration isolation function.
FIG. 1 is an axial half cross-sectional view of a torque converter for describing an exemplary embodiment of the present invention.
FIG. 2 is a drawing showing an inertial lever coupled to a driven plate for describing an exemplary embodiment of the present invention.
FIG. 3 is a drawing showing an example of an inertial lever coupled to a piston and a driven plate for schematically describing an exemplary embodiment of the present invention.
Hereafter, a torque converter in a vehicle in accordance with exemplary embodiments of the present invention will be described with reference to the accompanying drawings such that persons ordinarily skilled in the art may carry easily out the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Parts in the drawings that are not relevant to the description of the present invention are omitted for describing the present invention clearly, and like reference numerals designate like elements throughout the specification.
FIG. 1 is an axial half cross-sectional view of a torque converter in a vehicle for describing a first exemplary embodiment of the present invention.
The torque converter in accordance with a first exemplary embodiment of the present invention includes a front cover 4 rotatably connected to a crankshaft of an engine, an impeller 6 connected to the front cover 4 to rotate together with the front cover 4, a turbine 8 arranged at a position opposite to the impeller 6, and a reactor (called a ‘stator’) 10 positioned between the impeller 6 and the turbine 8 for changing an oil flow from the turbine 8 to forward the oil flow toward the impeller 6. The reactor 10 which forwards the oil toward the impeller 6 has the same rotation center as the front cover 4. A lock-up clutch 14 used as means for connecting the engine to the transmission directly is arranged between the front cover 4 and the turbine 8.