Borgwarner Inc.

Ntn Corporation

Borgwarner Morse Systems Japan K.k.

Hiroyuki Fukuyama

Akio Kato

Hisataka Hasegawa

Takahiro Yamashita

Timothy K White

Shinji Tsuruta

Nobuhiro Mizuno

Alan L Moster

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

To simplify a structure and reduce costs. A shoe for a chain guide or for a chain tensioner arm is constructed. Here, a shoe () has a chain sliding surface () on which a chain slides. A locking protrusion such as a clip, a tab or a hook for locking the shoe () to a tensioner arm main body () of a chain tensioner arm () is not provided on an end surface of the shoe () or on a surface on the rear side of the chain sliding surface (). Furthermore, the shoe () has a uniform cross-sectional shape over the whole length and extends linearly in the longitudinal direction.

Shoe for chain guide and for chain tensioner arm, and chain guide and chain tensioner arm provided with said shoe

A chain guide includes a curved guide base extending along the direction in which a torque transmitting chain moves. The guide base includes, on its surface opposed to the chain, a rolling guide portion including a plurality of roller element bearings which are rotatable and configured to guide the chain while kept in rolling contact with the chain, and a sliding guide portion in the form of a curved surface. The rolling guide portion reduces a loss in torque transmission, while the sliding guide portion reduces flapping of the chain, thus reducing noise and vibrations of the chain.

Chain guide and chain transmission device

Growing community of inventors

Mie, Japan

Hiroyuki Fukuyama