公开(公告)号：US20240309820A1

公开(公告)日：2024-09-19

申请号：US18186177

申请日：2023-03-19

Applicant: JAY TRAN

Inventor： JAY TRAN

IPC: F02D13/02 ,  F02B21/02 ,  F02B69/06 ,  F02D15/02

CPC classification number: F02D13/0219 ,  F02B21/02 ,  F02B69/06 ,  F02D13/0269 ,  F02D15/02

Abstract: A combustion engine comprises a main combustion cylinder configured to enable a piston to move therein; a main valve configured to move in the main combustion cylinder; an upper non-combustion chamber operatively adjacent to the main combustion cylinder; an upper intake valve configured to move in the upper non-combustion chamber and to communicate with an intake manifold; and an upper exhaust valve configured to move in the upper non-combustion chamber and to communicate with an exhaust manifold.

公开(公告)号：US20230040266A1

公开(公告)日：2023-02-09

申请号：US17444653

申请日：2021-08-06

Applicant: JAY TRAN

Inventor： JAY TRAN

IPC: F01L1/348 ,  F01L9/22 ,  F01L1/047

Abstract: A variable valve timing assembly includes an electric motor; a first set of gears driven by the electric motor; a first set of grooves and ball bearings driven by the first set of gears; a second set of grooves and ball bearings driven by the first of grooves and ball bearings; wherein the first set of grooves and ball bearings converts rotational movement of the first set of gears to axial rotational movement of the first set of ball bearings; wherein the axial movement of the first set of ball bearings causes rotational movement of the second set of grooves; whereby the rotational movement of the second set of grooves enables rotation of a camshaft engaged to a valve.