William G Mears

US Patent:

48256900, 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.

US Patent:

46795812, 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.

US Patent:

47199490, 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. '.