US1194703A - Ments - Google Patents

Description

J. J. BOTTLANDER.

IGNITION DEVICE.

APPLICATION FILED MAR. 4. I9I5.

Patented Aug. '15, 1916.

FIELE a one.

. JACOB J. BOTTLANDER, OF TOLEDO, OHIO, ASSIQNOR, BY DIRECT AND MESNE ASSIGN- MENTS, OF ONE-THIRD TO JOHN RUSSELL HARRY AND ONE-THIRD TO HARRY C.

COTTER, BOTH OF TOLEDO, OHIO.

IGNITION DEVICE.

Application filed March 4, 1915.

To all whom it may concern:

Be it known that I, JACOB J. BOTTLANDER, a citizen of the United States, residing at Toledo, Lucas county, Ohio, have invented new and useful Ignition Devices, of which the following is a specification.

This invention relatesto auxiliary fueling means in connection with ignition apparatus, especially for initially promoting combustion, as in internal combustion motors.

This invention has utility when incorporated in spark plugs for economic priming.

Referring to the drawings: Figure 1 isa side elevation of a spark plug embodying the invention; Fig. 2 is a medial vertical section through the spark plug of Fig. 1; Fig. 3 is a section on the line III-III, Fig. 1, looking in the direction of the arrow; and Fig. 4 is a fragmentary side elevation of the reservoir electrode.

The spark plug comprises the cylinder engaging bushing or ground electrode 1 in which may nest the porcelain or insulator 2 having concentrically cemented therein the second electrode 3. Upon this electrode 3 above the porcelain 2 are threaded the elements 4, 5, for engaging an electric conductor therebetween. Mounted on the threaded upper end of the electrode 3 beyond these electric terminal connections 4, 5, is the valve 6 having the rotatable stem 7 movable to open or close the passage from the bowl or priming funnel 8 to the duct 9 of the tubular electrode 3. This duct 9 extends past the openings 10 and terminates at the reservoir or fuel holder 11 therebeyond in the closed end of this tubular electrode 3.

The ground electrode 1 has electrode extensions or points 12 extending adjacent the openings 10 forming a spark gap at the top of the reservoir 11.

With the spark plug installed in a cylinder of an internal combustion engine, for readily starting the engine, a small charge of fuel, say gasolene, may be supplied, by opening the valve 7. This fuel will pass by way of the duct 9 to the holder or reservoir 11. The valve 7 may be closed. The engine may be cranked, either manually or by power, and the electric current made and broken, or rather sparkingproperly timed with the normal fuel supply to the engine Specification of Letters Patent.

Patented Aug. 15, 1916.

Serial No. 12,097.

cylinder and compression thereof. As the flash occurs across the spark gap between the electrodes from the openings 10 to the points 12, the fuel entrained in the reservoir 11 has its surface region in such close proximity to this flame as to be ignited most readily and in its explosion promote combustion throughout the entire cylinder for a working pressure upon the piston. A very small quantity of priming liquid is sufficient for starting even a cold motor, and due to the reservoir, the priming charge is flashed off to serve for several explosions. The position of the reservoir is such that in the actual flashing and explosion, as well as the compression and exhaust periods, there is not a current flow of gas to blow the fuel out of the reservoir 11.

In the supply of priming fluid, the connections and control for the valve may be extended or conformed to suit convenience in installation or operation.

What is claimed and it is desired to secure by Letters Patent is:

1. A priming spark plug embodying a bushing, an insulator mounted therein, a tubular electrode extending through the insulator, said electrode having its inner end closed and an opening spaced from the closed end, whereby in the tube below said opening a reservoir is provided which may be supplied through the electrode, which reservoir has an opening independent of the supply intake, and a terminal adjacent the opening and spaced therefrom to form a spark gap adjacent the reservoir.

2. A priming spark plug embodying an insulator, a tubular electrode therethrough, said electrode being closed at one end beyond the insulator to form an open surface reservoir, a valve in the electrode beyond the opposite end of the insulator and spark gap forming means over the reservoir surface.

3. The combination with a pair of electrodes spaced to form a spark gap therebetween, of a fuel holder in one of said electrodes, said holder having a fuel retaining bottom and providing a surface immediately below the spark gap, there being a duct to duct.

spark gap, a duct leading to said reservoir, and a valve in the duct.

5. The combination with a pair of electrodes spaced to form a spark gap therebetween, of a reservoir below the spark gap,

one of said electrodes providing a duct leading to said reservoir, and a valve in said 6. The combination with a pair of electrodes spaced to form a spark gap therebetween, one of said-electrodes providing a reservoir and a reservoir supplying duct past the spark gap to the reservoir.

7. A priming spark plug having a duct therethrough terminating in a reservoir, a valve in the duct, and a pair of electrodes forming a spark gap adjacent the top of said reservoir.

8. A priming plug provided 'With an

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