US1107232A - Internal-combustion engine. - Google Patents

Description

G. G. NICHOLS 8: W. H. WRIGHT. INTERNAL COMBUSTION ENGINE. APPLIOATIOH)IILBD rm. 6, 1m.

1,107,232 Patented Aug. 11,191

7 czwz @zA-Nar W1'r 77@5sas 4 MAW l UNITED STATES PATENT orrron.

CHARLESC. NICHOLS AND WILLIAM H. WRIGHT, 0F BUFFALO, NEW YORK, AS- SIGNORS TO NIGHOLS & WRIGHT MOTOR 00., OF BUFFALO, NEW YORK, A COR- PORATION OF NEW YORK.

, INTERNAL-COMBUSTION ENGINE.

Specification of Letters Patent.

Patented Aug. 11, 1914.

Application filed February 6, 1914. Serial No. 816,949.

and lViLLIAM H. WRIGHT, citizens of the' United States, residing at Buffalo, in the county of Erie and State of New York,have invented new and useful Improvements in Internal-Combustion Engines, of which the following is a specification;

-Our invention relates to improvements in internal combustion engines. More particularly it relates to improvements in fuel and ignition control.

The object of our invention is to provide, in connection with a governor, electrical means for controlling the charging of the cylinder with fuel when the engine exceeds a predetermined speed and for reestablishing the charging when the speed falls below such predetermined speed, and also for controlling the ignition to correspond therewith.

Referring to the drawings forming a part of this specification, Figure 1 is a sectional view of an engine provided with our .improvements, the electric circuits being shown diagrammatically. Fig. 2 is a section on the line 2 2 of Fig. 1. I

We have shown our invention adapted to a two-cycle engine, in which 1 is the cylinder, 3 is the piston, 4 is the crank-case, '5 is the crank-shaft provided with the usual flywheel, and 6 is a governor of well-known type. The exhaust port is not shown, but is of the usual form and operates in the usual manner. The crank-chamber is normally closed. The fuel inlet port is at 7 and is uncovered by the piston as it nears the end of; its stroke downwardly. In this port is placed a fuel valve 8 provided witha needle 9 for controlling the volume, an atomizing nozzle 10, and a ball or float 11 therein to as. Air for admixture with the fuel is, admitted through the port 12, which'is uncovered hythe piston at the close of its outward fstroke. A source of electric ener 13, is-provided in the usual manner, an also a spark-coil 14 which connects with the spark-plug 15 by a wire 23, the other pole going to ground as usual.

Mounted upon the crank-case 4 IS a yoke 24 which takes over, but clear from, the

shaft 5. Within this yoke is a ring 16, which is an electrical conductor and which is pivoted to the governor 6 by a connectingrod 17 Upon one inner face of the yoke 24 but insulated therefrom are segmental plates 18 and 19, and upon, the other inner face of said yoke, similarly constructed and insulated, are segmental plates 25 and 26. The plates 25 and 26 are more clearly shown in Fig. 2, and the plates 18 and 19 are substantially identical therewith. When the ring 16 is in contact with the plates 18 and 19 current will flow from battery 13 through wire 20 to plate 19, thence through the ring 16 to plate 18, thence by wire 21 to the sparkcoil 14 and back to battery by wire 22. This will energize the spark-coil which Willproduce the firin spark in the usualmanner. When the englne exceeds the predetermined maximum speed, the governor 6 will move the ring 16 out of contact with the plates 18 and 19 and break the electrical connection between battery and spark-coil.

Opening into the crank-case 41 is a port 27, which is opened and closed by a valve 28. The stem of this valve 28 connects with the core of a solenoid 29. This port is normally closed, being. opened only when the engine exceeds the predetermined maximum speed as now described. When the engine exceeds the maximum speed the ring 16 is moved out of contact with the plates 18 and 19, as above described, by the governor -6 and is moved into contact with the plates 25 and 26. This movement not only sto s ignition by breaking the circuit of the spar coil but stops charging the engine in the following mahner: The ring 16 being in contact with the plates 25 and 26, current flows from'battery 13 through wire 30, solenoid 29, wire '31, plate 25, ring 16, plate 26, and wire 32 back to battery. This energizes the solenoid 29 and causes it to open the valve 28. Consequently, with the valve 27 open, when th'episton 3 moves down on the explosion stroke, the air in the crank-chamber gravity or by spring action, if desired, and normal action is resumed.

Having thus described our invention, we claim 1. In an internal combustion engine, in

combination with a governor, a yoke mount-l ed over the crank-shaft, a ring on said shaft Within said yoke connected to said governor to be moved axially thereby, electrical contacts on said yoke insulated therefrom and capable of making electrical connection with said ring, a source of electric energy, a spark-coil and wires connecting the same with said contacts, a second pair of contacts on said yoke capable of being electrically connected by said ring, and a valve for preventing air charge when said ring is out of electrical connection with said first-mentioned pair ofcontacts.

2. In an internal combustion engine, in combination with a governor, means for regulating the fuel-charging of the engine comprising an opening from atmosphere into the crank-chamber, a valve 'in said opening, a solenoid governing said valve, a circuit and source of electric energy for said solenoid, and an electric switch operated by said governor for opening and closing said circult.

3. lln an internal combustion engine, in combination with a governor, a yoke mounted over the crank-shaft, a ringv on said shaft withinsaid yoke connected to said governor to be moved axially thereby, electrical contacts on said yoke insulated therefrom and capable of being electrically connected by said ring, a source of electric energy, a spark-coil and Wires connecting the same With said contacts, whereby the spark-coil circuit is closed through said ring excepting When said governormoves said ring out of contact: a second pair e11. v. contacts on sand yoke insulated therefrom, wires connecting said contacts with said battery-,- an opening closes the circuit of said solenoid to open said valve.

4. In a two-cycle internal combustion engine, in combination with a governor and means actuated by said governor for controlling the spark-coil circuit, means for preventing the normal charging of thecylinder with fuel by letting off the crank-chamber pressure upon the explosion stroke comprising an opening in said crank-chamber, a

valve in said opening and means for actuating said valve controlled by said governor.

5. In a two-cycle internal combustion engine, in combination With a governor, means for preventing the normal charging of the cylinder with fuel comprising an opening in the crank-chamber to atmosphere, a valve in said opening, an electromagnetic device for operating said valve, and an electric switch opened and closed by the action of said governor for controlling said electromagnetic device, whereby pressure in said crankchamber is removed atthe charging period when said governor is acting to retard the speed of the engine.

In testimony that we claim the foregoing invention We have hereunto set our hands in the presence of two WltIlGSSBS.

enannns e motions. WILLIAM H. vvnrenr.

Witnesses:

D. H. HARPER, L. A. DEUTHER.

Images