James M Hardy

US Patent:

50366688, Aug 6, 1991

Filed:

Jul 3, 1990

Appl. No.:

7/547666

Inventors:

James A. Hardy - Playa Del Rey CA

Assignee:

Allied-Signal Inc. - Morristown NJ

International Classification:

F02B 2900

US Classification:

60599

Abstract:

A combustion air induction system for an internal combustion engine equipped with a turbocharger to provide charge air to the engine includes a pair of heat exchangers arranged in series in the conduit communicating the charge air outlet of the turbocharger to the induction manifold of the engine. Charge air from the turbocharger first travels through a charge air to engine coolant heat exchanger, and then travels through a charge air to ambient air heat exchanger. A bypass passage is controlled by a valve to bypass charge air around the charge air to ambient air heat exchanger under predetermined conditions.

US Patent:

60521902, Apr 18, 2000

Filed:

Sep 9, 1997

Appl. No.:

8/925628

Inventors:

Marek Sekowski - Tarzana CA
Thomas Summers - Los Lunas NM
James M. Hardy - Albuquerque NM

Assignee:

Utoptics, Inc. - Tarzana CA

International Classification:

G01B 1124

US Classification:

356376

Abstract:

A distance-measuring system includes a light source for transmitting a beam of light to a target, thereby generating a received beam. A calibration unit periodically calibrates the system by positioning a calibration target between the light source and the target so that the transmitted beam is interrupted, thereby generating a received calibration beam. The calibration unit also generates a calibration signal which is indicative of when the calibration target is generating the received calibration beam. A target sensor receives the reflected target and calibration beams and provides a target signal indicative of the reflected target and calibration beams. A reference sensor receives light from the light source and provides a reference signal to the processing circuitry. Processing circuitry receives the calibration, target, and reference signals and calculates the distance to the target based upon the target and reference signals and/or calibrates the system based upon the calibration signal. The processing circuitry may provide data based upon the calibration and target signals to a computer for distance calculations and calibration.

US Patent:

48359637, Jun 6, 1989

Filed:

Aug 28, 1986

Appl. No.:

6/901483

Inventors:

James A. Hardy - Playa Del Rey CA

Assignee:

Allied-Signal Inc. - Morristown NJ

International Classification:

F01N 302
F02B 3700
F02D 906

US Classification:

60274

Abstract:

A diesel engine exhaust particulate trap and regeneration system for trapping of particulates in the engine gases and periodic burning thereof is disclosed. Collected particulates are burned in the trap by increasing the trap temperature utilizing a backpressure valve in the exhaust gas line. A microprocessor, which receives engine operating parameters via sensors, compares the sensed parameter valves to engine maps stored in its memory and opens or closes the valve via an actuator in response thereto.

US Patent:

46778233, Jul 7, 1987

Filed:

Nov 1, 1985

Appl. No.:

6/794346

Inventors:

James A. Hardy - Playa Del Rey CA

Assignee:

The Garrett Corporation - Los Angeles CA

International Classification:

F01N 302

US Classification:

60274

Abstract:

A diesel engine exhaust particulate trap and regeneration system for trapping of particulates in the engine exhaust gases and periodic burning thereof. Collected particulates in the trap are burned utilizing a burner means immediately upstream of the trap. An air and fuel supply system are associated with the burner which controls the combustion temperature within the burner in order to completely and efficiently burn the particulates.

US Patent:

50503766, Sep 24, 1991

Filed:

Feb 8, 1990

Appl. No.:

7/477019

Inventors:

Paul M. Stiglic - Torrance CA
Brian C. Gabelman - Los Angeles CA
James A. Hardy - Playa Del Rey CA

Assignee:

Allied-Signal Inc. - Morristown NJ

International Classification:

F01N 302

US Classification:

60274

Abstract:

A control system for regenerating a particulate trap in the exhaust system of a diesel engine includes control logic which controls the air/fuel ratio of the engine by operating a backpressure valve in the engine exhaust system to provide a proper amount of excess oxygen to permit efficient combustion of the particulate content of the trap, but to avoid rapid and damaging combustion rates. Actual engine air/fuel ratio is compared to a commanded air/fuel ratio, and the position of the backpressure valve is adjusted accordingly. The commanded air/fuel ratio is ratcheted upwardly or downwardly once in a predetermined time period in response to a temperature error signal between exhaust gas temperature sensed in the engine exhaust manifold and a predetermined commanded temperature. An override is provided to permit the vehicle operator to override regeneration when power is required from the engine, and a low power cut-off is provided to suspend regeneration when the engine is operated for a period of time at low power conditions where regeneration is inefficient.