WILLIAM G MEARS
Engineers in Kennett Sq, PA
License number
Pennsylvania PE026643E
Category
Engineers
Type
Professional Engineer
Address
Address
Kennett Sq, PA 19348
Professional information
Method Of Controlling A Dynamometer
US Patent:
4825690, May 2, 1989
Filed:
Jan 25, 1988
Appl. No.:
7/147969
Inventors:
William G. Mears - Kennett Square PA
Assignee:
Mobil Oil Corporation - New York NY
International Classification:
G01L 322, G01L 513
US Classification:
73117
Abstract:
A method for controlling a dynamometer used to simulate the on-road operation of a vehicle during testing on a dynamometer so as to achieve a more accurate matching of the on-road speed profile of the vehicle by the dynamometer. The dynamometer includes means for drivingly connecting the dynamometer to the powertrain of the vehicle, such as rollers on which the drive wheels of the vehicle rest and which are rotated by the vehicle drive wheels, or a direct drive to the output shaft of the vehicle engine and transmission. A power absorption and motoring unit is connected to the rollers or direct drive to simulate road operating forces. A force transducer is provided for measuring the force of the power absorption and motoring unit and a speed transducer is provided for measuring the speed of the power absorption and motoring unit. The force and speed of the power absorption and motoring unit are determined at short, precise time intervals to determine changes in the force produced by changes in the power of the vehicle. The feed-forward force necessary to bring the force of power absorption and motoring unit to the force required to control vehicle acceleration and speed to road equivalency is determined, and the power absorption and motoring unit force is adjusted to the determined value.
Automotive Nozzle-Actuated Refueling Emission System Shutoff Valve
US Patent:
4719949, Jan 19, 1988
Filed:
Jun 30, 1986
Appl. No.:
6/880426
Inventors:
William G. Mears - Kennett Square PA
Assignee:
Mobil Oil Corporation - New York NY
International Classification:
B65B 304
US Classification:
141301
Abstract:
A valve activated by inserting a fuel nozzle in a fuel tank fill line allows hydrocarbon vapors from the tank to be displaced into an adsorbent canister. The valve closes when nozzle is withdrawn. The valve prevents loss of liquid when fuel tank is accidentally inverted. '.
Fuel Tank Vent Valve
US Patent:
4679581, Jul 14, 1987
Filed:
Apr 18, 1986
Appl. No.:
6/853513
Inventors:
William G. Mears - Kennett Square PA
Assignee:
Mobil Oil Corporation - New York NY
International Classification:
F16K 1736
US Classification:
137 43
Abstract:
Disclosed is a valve configuration including a spring balanced, semi buoyant valve head containing within it a ball in a vertical channel. Closure of the valve head against a valve seat permits the escape of vapors through the veritcal channel until the presence of liquid fuel closes the ball against a second seat.