US 10,816,069 B2Granted

Hydrodynamic lock-based continuously variable transmission gearbox

OwnerAmir Aghabeygi Saravaniinventor

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Abstract

A hydrodynamic lock-based CVT gearbox is disclosed. The apparatus is configured to continuously convert input rpm into different rpm's without interrupting a gearbox connection with an engine using a suspended and single-speed gearbox, and clockwise and counterclockwise rotation control of hydrodynamic lock. The apparatus is configured to utilize parallel paths pattern for power transfer, which includes a first power path and a second power path parallel to the first power path. The first power path is configured to reduce rotation and increase torque. The second power path is configured to provide equal rotation of the input and output axes. The apparatus is further configured to transfer the power from the first power path to the second power path by disposing a limiter at the first power path. At the end, the rotational force of the paths is combined and transmitted to the output of the gearbox.

Claims16

Dependent claims

A continuous variable transmission apparatus comprising:

an input member receives a rotational drive force from a drive source;
a plurality of rotatable interconnecting members;
a first node operatively connected to the input member via one of the interconnecting members;
a second node meshingly engaged with the first node;
a third node operatively connected to the second node via one of the interconnecting members;
a fourth node meshingly engaged with third node;
an output member operatively connected to the fourth node via one of the interconnecting members, configured to transmit the rotational drive force to a drive wheel;
a casing assembly rotatably couples the input member and the output member wherein the casing assembly encases the first node, the second node, the third node and the fourth node, wherein the interconnecting member connecting the third node and the second node is operatively connected to the casing assembly, the casing assembly comprises a central member sandwiched between a first member and a second member, and a third member, the central member comprises an aperture contoured to encompass the first node and the second node, and
a hydrodynamic-based locking mechanism configured to lock the first node and the second node,
wherein the rotational drive force is transmitted from the input member to the output member through a path connecting the first node, the second node, the third node and the fourth node, wherein the output member resists rotation on receiving the drive force,
wherein selective movement of the input member transmits the force back to the casing assembly that causes rotation of the casing assembly,
wherein movement of the input member increases torque and causes the output member to rotate slowly decreasing output speed forming a first power path, and
wherein the locking of the first node and the second node, and movement of the input member transmits force to the output member through rotation of the casing assembly forming a second power path.

10 more elements

A continuous variable transmission apparatus comprising:

an input member receives a rotational drive force from a drive source;
a plurality of rotatable interconnecting members;
a first node operatively connected to the input member via one of the interconnecting members;
a second node meshingly engaged with the first node;
a third node operatively connected to the second node via one of the interconnecting members;
a fourth node meshingly engaged with third node;
an output member operatively connected to the fourth node via one of the interconnecting members, configured to transmit the rotational drive force to a drive wheel;
a casing assembly rotatably couples the input member and the output member, wherein the casing assembly encases the first node, the second node, the third node and the fourth node, wherein the interconnecting member connecting the third node and the second node is operatively connected to the casing assembly, the casing assembly comprises a central member sandwiched between a first member and a second member, and a third member, the central member comprises an aperture contoured to encompass the first node and the second node, and
a locking mechanism configured to lock the first node and the second node,
wherein the rotational drive force is transmitted from the input member to the output member through a path connecting the first node, the second node, the third node and the fourth node, wherein the output member resists rotation on receiving the drive force,
wherein selective movement of the input member transmits the force back to the casing assembly that causes rotation of the casing assembly,
wherein movement of the input member increases torque and causes the output member to rotate slowly decreasing output speed forming a first power path, and
wherein the locking of the first node and the second node, and movement of the input member transmits force to the output member through rotation of the casing assembly forming a second power path.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/425,867Filed 29 May 2019
Published: US 2020/0063844 A127 Feb 2020
Granted: 27 Oct 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

F16H 47/08
The fluid gearing being of the hydrokinetic type: the mechanical gearing being of the type with members having orbital motion
F16H 47/06
Combinations of mechanical gearing with fluid clutches or fluid gearing: the fluid gearing being of the hydrokinetic type
F16H 48/27
Arrangements for suppressing or influencing the differential action, e.g. locking devices: using internally-actuatable fluid pressure, e.g.…
F16H 48/26
Arrangements for suppressing or influencing the differential action, e.g. locking devices: using fluid action, e.g. viscous clutches