公开(公告)号：US10132391B2

公开(公告)日：2018-11-20

申请号：US15303781

申请日：2014-04-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chengwu Duan ,  Robert J. Gonzalez ,  Farzad Samie ,  Yongsheng He ,  Chunhao J. Lee ,  David J. Cleary

IPC: F16H9/18 ,  F16H55/56 ,  F16H9/00 ,  F16H9/24

Abstract: A continuously variable transmission includes a first pulley, a second pulley, and an endless rotatable device operatively interconnecting the first and second pulleys. The endless rotatable device includes a device body and a plurality of device teeth protruding from the device body. Each of the first and second pulleys includes a first sheave, a second sheave, and a pulley axle operatively coupled between the first sheave and the second sheave. The pulley axle defines a pulley center. The first sheave is movable relative to the second sheave along the pulley axle. Each of the first and second sheaves includes a sheave body and a plurality of sheave teeth protruding from the sheave body. The sheave teeth are annularly arranged around the pulley center. The sheave teeth are shaped to mate with the device teeth.

公开(公告)号：US10393032B2

公开(公告)日：2019-08-27

申请号：US15558024

申请日：2015-03-13

Applicant: GM Global Technology Operations LLC

Inventor： Yongsheng He ,  David J. Cleary ,  Paul M. Najt ,  Jim Liu ,  David Sun ,  Bin Zhu

IPC: F02D13/02 ,  F01L1/08 ,  F02D23/02 ,  F02B37/04 ,  F01L1/18 ,  F01L9/04 ,  F01L13/00 ,  F01L1/20

Abstract: An internal combustion engine includes a cylinder block that defines a cylinder and a cylinder head mounted to the cylinder block. A reciprocating piston is arranged inside the cylinder for compressing an air and fuel mixture at a geometric compression ratio of at least 10:1. A crankshaft is arranged in the cylinder block and rotated by the piston. An intake valve is operatively connected to the cylinder head and controls delivery of air to the cylinder for combustion therein. A mechanism provides a constant peak lift of the intake valve over an angle of rotation of the crankshaft that is at least 5 degrees, i.e., an extended dwell at peak lift. A multi-stage boosting system having first and second gas compressors is selectively controlled to pressurize air that is received from the ambient for delivery to the cylinder. A vehicle having such an engine is also disclosed.

公开(公告)号：US20170030436A1

公开(公告)日：2017-02-02

申请号：US15303781

申请日：2014-04-16

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Chengwu Duan ,  Robert J. Gonzalez ,  Farzad Samie ,  Yongsheng He ,  Chunhao J. Lee ,  David J. Cleary

IPC: F16H9/18 ,  F16H9/24 ,  F16H55/56

CPC classification number: F16H9/18 ,  F16H9/00 ,  F16H9/24 ,  F16H55/56

Abstract: A continuously variable transmission includes a first pulley, a second pulley, and an endless rotatable device operatively interconnecting the first and second pulleys. The endless rotatable device includes a device body and a plurality of device teeth protruding from the device body. Each of the first and second pulleys includes a first sheave, a second sheave, and a pulley axle operatively coupled between the first sheave and the second sheave. The pulley axle defines a pulley center. The first sheave is movable relative to the second sheave along the pulley axle. Each of the first and second sheaves includes a sheave body and a plurality of sheave teeth protruding from the sheave body. The sheave teeth are annularly arranged around the pulley center. The sheave teeth are shaped to mate with the device teeth.

Abstract translation: 无级变速器包括第一滑轮，第二滑轮和可操作地互连第一和第二滑轮的环形可旋转装置。 无端可旋转装置包括装置主体和从装置主体突出的多个装置齿。 第一和第二滑轮中的每一个包括可操作地联接在第一滑轮和第二滑轮之间的第一滑轮，第二滑轮和滑轮轴。 滑轮轴限定滑轮中心。 第一滑轮相对于第二滑轮沿滑轮轴可移动。 第一和第二滑轮中的每一个包括滑轮主体和从滑轮主体突出的多个滑轮齿。 滑轮齿围绕皮带轮中心环形布置。 滑轮齿形成与装置齿匹配。