Borgwarner Inc.

Timothy K White

Christopher Van Loon

Matthew W Crump

Joseph P Goodsell

Sean R Simmons

Bradley F Adams

Franklin R Smith

Chad M McCloy

Marty Gardner

Bruce Alan Churchill

Hiroyuki Fukuyama

Alan L Moster

Douglas S Fornell

Robert Mario Mariuz

Nicholas R Dunn

Seth G G Wraight

Woo-Serk Park

Monica A Crowe

A tooth jump protection device is used to control chain slack and delay the torque at which chain jump occurs, thus increasing jump torque performance. The tooth jump protection device is preferably mounted to the transfer case.

Tooth jump protection device

A bicycle chain which includes internal links which are formed to act as both a rotating joint for the pin and a supporting surface for the roller. Two internal links together form an internal link assembly, along with rollers and bushings.

Bicycle chain with bushing link

A pattern for application to the face of the tensioner arm, guide or snubber in contact with a chain to intentionally break up the chain contact force between the back of the chain links and the tensioner arm, guide or snubber face. This is done to prevent alignment with the chain related orders which are causing NVH within the chain system or to increase overall NVH to obscure chain related orders.

Face of tensioner guide or arm with pattern to influence chain system NVH performance

A chain guide and tensioning apparatus is disclosed that is configured for engagement (contact) with a driven chain (e.g., in an automotive engine). The chain guide and tensioning apparatus includes a guide body and a guide face overlying the guide body. The guide face defines an inner surface and an opposite outer surface that is configured to guide and tension the driven chain. The guide face includes a plurality of spacers that extend therefrom into engagement (contact) with the guide body so as to define at least one channel that is configured to facilitate air and/or lubricant circulation between the guide body and the guide face to reduce heat and friction generated by engagement of the driven chain with the guide face.

Chain guide and tensioning apparatus for vehicles

A random pattern chain assembly of the present invention improves noise, vibration and harshness (NVH) performance of a silent or inverted tooth chain. The chain assembly preferably uses at least three different link types arranged in a known pattern. The pattern is arranged such that the first link type is never adjacent the third link type, in that there is always a second link type between the first link type and the third link type.

Tertiary chain lacing assembly

The present invention increases cold temperature oil flow through the variable cam timing (VCT) phaser to reduce the amount of time it takes to replace this oil with warmer low viscosity oil and thereby improve performance. Furthermore the oil flow through the VCT phaser is reduced once the oil temperature reaches the minimum operating temperature for the VCT phaser to operate and the VCT phaser is commanded to move from the park position. Therefore, the VCT phaser is charged with hot engine oil and is commanded to move from the parked position. The VCT phaser reduces oil flow through the phaser at high oil temperatures and low oil viscosity while adding the benefit of increased oil flow through the phaser at low oil temperatures and high oil viscosity to facilitate getting warmer oil into the VCT phaser sooner for increased VCT performance.

Venting mechanism to enhance warming of a variable cam timing mechanism

Growing community of inventors

Sterling Heights, MI, United States of America

Timothy K White