Kabushiki Kaisha Toyota Chuo Kenkyusho

Yoshiyuki Mizutani

Yuji Nagasawa

Akio Isogai

Yoshio Shimura

Katsuya Furusu

Shin-ichi Ishiyama

Masaaki Tada

Yasuo Imada

Yasuaki Ichiba

Lynn B Long

A damping pad for preventing brake squeal includes: a first metal plate with a brake shoe fixed to one surface thereof; a second metal plate; a third metal plate; a first damping layer disposed between the other surface of the first metal plate and one surface of the second metal plate, and composed of viscoelastic material for high temperature use having a maximum loss factor at a temperature of 50.degree. C. to 100.degree. C.; and a second damping layer disposed between the other surface of the second metal plate and one surface of the third metal plate, and composed of viscoelastic material for low temperature use having a maximum loss factor at a temperature of 0.degree. C. to 30.degree. C. Since the first and second damping layers are formed of different damping materials having different temperature ranges for good damping efficiencies, the use of different kinds of damping materials are employed, so that vibrations which may cause the brake squeal are damped through a wide temperature range, thus preventing the brake squeal.

Backing plate for disc brake with different damping layers for brake

A high temperature sliding element is provided with a metallic film formed of any one of metals Ni, Mn, Cr, Fe and Co, and alloys of these metals on a sliding surface of a substrate of carbide ceramics or nitride ceramics in accordance with physical vapor deposition. When the substrate and a sliding counterpart ceramic member are slid in a high temperature atmosphere 500.degree. C. or higher with the metallic film intervening therebetween, wear due to sliding motion between the substrate and the counterpart ceramic member can effectively be reduced. The metallic film forms an oxidized sliding surface layer at the high temperature.

High temperature sliding element and method for preventing high

The coefficient-of-friction of iron base alloys containing molybdenum is lowered by incorporation of sulphur or selenium. The wear resistance is greatly increased by adding carbon with little if any increase in the coefficient-of-friction. A method of preparation is disclosed.

Self-lubricating iron base alloy

Growing community of inventors

Nagoya, Japan

Yoshiyuki Mizutani