Other

Am International Incorporated

Kleenair Systems, Inc.

James W Davis

Lester P Berriman

John M Zabsky

Edward T Morgan

William M Hylton

Saied A Mabrouk

Saled A-e Mabrouk

A method and apparatus are provided for reducing pollutants and especially nitrogen oxides, or NOx, in the exhaust gases of an engine. The apparatus includes a device for injecting ammonia into a conduit that extends between cylinder exhaust valves and a catalytic converter, to mix the ammonia with the exhaust gases. Ammonia injection occurs at a location a plurality of inches downstream of the exhaust valves to avoid burning of the ammonia by flames. The injection preferably occurs at a location where the exhaust gases are at a temperature of at least about 1200.degree. F. to cause considerable reaction of the ammonia with NOx in the exhaust gases prior to the gases reaching the catalyst, so less NOx must be removed along the catalyst. To minimize ammonia use, it is injected only for a limited period such as a minute after a cold engine is started when the catalyst is too cold to cause significant reactions, and during operation of the engine at high power levels when the greatest amounts of NOx are produced.

Engine NOx reduction

A system for generating electricity in a vehicle when the vehicle is not moving at a sufficient speed to drive the on board generators and when the wind is insufficient to drive the generators. In one embodiment, a control unit receives input signals from sensors which determine the vehicle speed and the speed and direction of the wind. In another embodiment, the control unit receives input signals from sensors which determine the total current produced by the generator. Based on these signals, the control unit controls the discharge of air from storage tanks on the vehicle to power the generators. The generators produce electricity which is stored on the vehicle and is used to run the vehicle.

System for generating electricity in a vehicle

A method and apparatus are provided for reducing pollutants and especially nitrogen oxides, or NOx, in the exhaust gases of an engine. The apparatus includes a device for injecting ammonia into a conduit that extends between cylinder exhaust valves and a catalytic converter, to mix the ammonia with the exhaust gases. Ammonia injection occurs at a location a plurality of inches downstream of the exhaust valves to avoid burning of the ammonia by flames. The injection preferably occurs at a location where the exhaust gases are at a temperature of at least about 1200.degree.F. to cause considerable reaction of the ammonia with NOx in the exhaust gases prior to the gases reaching the catalyst, so less NOx must be removed along the catalyst. To minimize ammonia use, it is injected only for a limited period such as a minute after a cold engine is started when the catalyst is too cold to cause significant reactions, and during operation of the engine at high power levels when the greatest amounts of NOx are produced.

Engine NOx reduction system

A safe, easy and fast procedure and apparatus for sealing by welded steel plugs branch lines connected to conduits through which gas is flowing, uses a low-carbon steel plug which does not develop cracks on cooling from welding temperature; such plug is arranged to carry a resilient sealing and holding element for locating such plug in place in a cut branch line during welding as well as providing a seal against gas passage during welding. A hard metal die element is provided to properly enlarge and form the cut branch line to accept the plug and resilient sealing and holding element.

Process and apparatus for sealing gas lines

A lithographic ink and moisture control system is provided for maintaining copy quality over a wide range of operating and environmental conditions without special operator assistance. The control system, among other things, adjusts the ink and moisture feed rates to compensate for predicted changes in master conditions associated with the absorption of moisture by the master during the course of a copy run.

Ink and moisture control with master condition compensation

A lithographic ink and moisture control system as provided for maintaining copy quality over a wide range of operating and environmental conditions without special operator assistance. The control system, among other things, adjusts the ink and moisture feed rates to compensate for predicted high moisture conditions which occur at several short copy runs, wherein significant moisture is introduced with each new master.

Growing community of inventors

Rancho Mirage, CA, United States of America

James W Davis