3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

Paul D Stroom

Stephen M Sanocki

Richard P Merry

Loyd R Hornback, Iii

Joel H Sabean

Gary F Howorth

Michael T Schweitzer

Carl J Braunreiter

A pollution control device has a metal housing, a solid pollution control device disposed within the metal housing, and a mounting mat disposed between the pollution control element and the housing for positioning the pollution control element and for absorbing mechanical and thermal shock. The mounting mat includes a layer of intumescent material having at least one insert formed of a resilient, flexible, fibrous non-intumescent material. The insert is positioned along at least a portion of at least one lateral edge of the mounting mat to prevent erosion of the intumescent material and to provide a seal between the pollution control element and the housing.

Hybrid mounting system for pollution control devices

Catalytic converter or diesel particulate filter or trap having edge protectant which reduces erosion of a lateral edge of an intumescent mounting mat when exposed to hot, impinging gases.

Catalytic converter and diesel particulate filter

An improved regenerative, high temperature gas, high efficiency heat exchanger has a heat absorbing rotor formed of a plurality of gas flow passages and a housing that includes partition columns for dividing the rotor passages into at least one high temperature and at least one low temperature duct. A two section drive shaft supports the rotor in the housing and pressure plates securely connect the rotor to the drive shaft. The rotor is of a size to provide an annular gas bypass channel between the rotor and the housing, which channel is greater than the hydraulic diameter of the rotor flow passages in order that bypass of gas through the channel provides a continual flushing of contaminants therefrom. To prevent leakage between the high and low temperature ducts through this annular channel, air curtains may be employed at the top and bottom of the partition columns. In addition, air curtains may be employed along the length of the partition columns to prevent leakage of contaminants from occurring through the space between the columns and the rotor. SU

High efficiency heat exchanger with ceramic rotor

Growing community of inventors

Minneapolis, MN, United States of America

Paul D Stroom