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Publication numberUS3835819 A
Publication typeGrant
Publication dateSep 17, 1974
Filing dateDec 29, 1972
Priority dateDec 29, 1972
Also published asCA1006941A, CA1006941A1, DE2349670A1
Publication numberUS 3835819 A, US 3835819A, US-A-3835819, US3835819 A, US3835819A
InventorsR Anderson
Original AssigneeEssex International Inc
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Digital engine control apparatus and method
US 3835819 A
Abstract
The disclosure describes digital apparatus and a digital method for operating a multicylinder internal combustion engine having spark plugs that are fired in response to an electrical fire signal and having fuel injectors that are opened to admit a quantity of fuel in response to an electrical fuel signal having a duration determined by the speed of the engine and the position of a throttle controlled by an operator of the engine.
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Claims  available in
Description  (OCR text may contain errors)

United States Patent Anderson, Jr.

DIGITAL ENGINE CONTROL APPARATUS AND METHOD Robert L. Anderson, Jr., Pittsburgh. Pa.

Essex International, Inc., Fort Wayne, 1nd.

Filed: Dec, 29, 1972 Appl, No.: 319,345

lnventor:

Assignee:

US. Cl.. 123/32 EA, 123/139 AW, 123/119 R, 123/117 R, 23S/l50.21, 340/1725 Int. Cl. F02m 52/00 Field of Search..... 123/32 EA, 119 R, 139 AL, 123/139 R, 139 AW, [40 MC, 140 CC; 235/150, 1502, 150,21; 340/1725 References Cited UNITED STATES PATENTS 1/1959 Reggio 123/140 CC 9/1962 Schmidt 123/139 AL Sept. 17, 1974 3,606,869 9/l97l Hunlzingcr ct a1 H 123/139 AW 3,659,563 5/1972 Monpetit H 123/32 EA 3,689,753 9/1972 Williams et al, 235/15021 FOREIGN PATENTS OR APPLICATIONS 2,004,269 8/1970 Germany 123/32 EA Primary ExaminerLaurence M. Goodridge Attorney, Agent, or FirmMolinare, Allegretti, Newitt & Witcoff [57] ABSTRACT The disclosure describes digital apparatus and a digital method for operating a multicylinder internal combustion engine having spark plugs that are fired in response to an electrical fire signal and having fuel injectors that are opened to admit a quantity of fuel in response to an electrical fuel signal having a duration determined by the speed of the engine and the position of a throttle controlled by an operator of the engme.

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Classifications
U.S. Classification123/406.47, 123/480, 701/123, 123/406.6, 123/486
International ClassificationF02D35/00, F02D41/34, F02D41/24, F02P5/15, F02D41/26
Cooperative ClassificationF02P5/1512, Y02T10/46, F02D41/2416, F02D41/26
European ClassificationF02P5/15B10, F02D41/26, F02D41/24D2D
Legal Events
DateCodeEventDescription
Jul 11, 1988ASAssignment
Owner name: UNITED TECHNOLOGIES AUTOMOTIVES, INC., A CORP. OF
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ESSEX GROUP, INC.;REEL/FRAME:004933/0578
Effective date: 19880223