US990249A

US990249A - Starting-vaporizer for explosive-engines.

Info

Publication number: US990249A
Application number: US39615807A
Authority: US
Inventors: Joseph F Garcia; Harry Hertzberg
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-10-07
Filing date: 1907-10-07
Publication date: 1911-04-25
Anticipated expiration: 1928-04-25

Description

J. F. GARCIA, H. HERTZBERG & A. A. LQW. STARTING VAPORIZER FOB. EXPLOSIVE ENGINES APPLIGATION FILED OCT. 7, 1907.

Patented Apr. 25, 1911.

Jbsepf. Garcia,

WITNESSES W. 6. MW- t 7 5 A TTORNEYS UNITED s'ra rns P TENT OFFICE.

JOSEPH F. GARCIA AND HARE-Y I-IERTZBERG, 0F BROOKLYN, AND ABBOT A. LOW, OF HORS'ESHOE, NEW YORK; SAID GARCIA AND HERTZBERG ASSIGNORS 'IO SAID LOW.

STARTING-VAPOBIZER FOR' EXPLGSIVE-ENGINES.

Specification of Letters Patent.

Application filed Gctober 7 Patented Apr. 25, 1911.

, 1907. Serial No. 396.158.

To all whom it may concern:

Be it known that we, Josnrn F. GARCIA and HARRY HERTZBERG, of Brooklyn, county of Kings, and Armor A. Low, of Horseshoe, county of St. Lawrence, State of New York, all citizens of the United States, have invented a certain new and useful Starting- Vaporizer for Explosive-Engines, of which the following is a specification.

This invention is a vaporizer for internal combustion engines, partlcularly for engines adapted to utilize kerosene as the motive 'tluid. whereby the engine may be started by the admission of kerosene and kept in operation by a continued supply of kerosene thereto.

The object is to quickly heat a surface to such a temperature as will convert kerosene, brought into contact therewith, into a vapor, and to regulate the admixture of atmospheric air wit-h such vapor, thereby producing a combustible mixture or charge suitable for ignition in the cylinder of the engine. Y

The leading feature of the invention is a hollow member, and means for electrically heating the same. whereby a liquid combustible may be brought into contact with said heated memberfor the purpose of converting the liquid into a vapor, more especially at. the time the engine is started.

In a preferred embodiment of the invention, the hollow member is composed of an electrical resistance material, such as a cylinder of carbon, and this member is included in an electric circuit in such manner that a current is adapted to traverse the same, whereby the hollow member is quickly heated by the electric current before startmg the engine, thus producing a heated vaporizing surface, against which the liquid combustible is sprayed. The hollow member is supportedin a chamber, to which air is supplied through a suitable inlet port, the area of said port being regulatable by a valve which is shiftable relative to the port, whereby more or less air may be admitted to the mixing chamber. It is preferred, also, to incase the hollow resistance member with heat insulating material, such as as bestos, and, further, to employ a battle adjacent to that end of the hollow member by which the vapor passes mto the mixing chamber.

In the accompanying drawings, we have illustrated one practical embodiment of the invention, but the construction shown therein is to be understood as illustrative, only, and not as defining the limits of the invention.

tion, on the line 1--1 of Fig. 3, showing a preferred embodiment of our invention. Figs. 2 and 3 are vertical cross sections on the lines 9-2 and 3-3. respectively, of Fig.

forming a part of the cylinder of an internal combustion engine. Said cylinder head has an intake port, a, in which is pro yided a guide, I), for the stem, B, of an intake valve, G, the latter being normally held to its seat, 0. in the cylinder head by a spring, Z). The valve stem passes through anotherguide, N, which is provided in an elbow shaped end, (Z, of a casing, D, whereby the end of .the .valve stem, B, extends through and beyond the casing, D. The valve, C, may be operated in one direction by the energy of the suction which takes place in the cylinder when the piston moves in one direction, said valve, C. being moved in the opposite direction by the spring, I); but. if desired, the valve may be operated mechanically and positively by appropriate lever and rod connections with a moving part of the engine in a manner well understood by those ski led in the art.

The casing. D, is composed, preferably, 0

a single casting having the elbow shaped end, (Z, the latter being provided with a flange, (Z, which rests upon or against the cylinder head, A, whereby the casing is adapted to be fastened securely to said cylinder head by bolts, (Z adapted to pass throilgh the flange, (Z'. The other end of the casing. D, is flanged at e, and-said end is closed by a head, E, the latter being secured removably in place by suitable bolts, 0, The head, E, is provided with an inlet or spaiy nozzle, F, which is held in place by a 1nd, and to this nozzle is coupled a fuel supply pipe, F. This pipe leads from the vaporizer of our invention to a suitable oil pump which operated at intervals for the purpose of forcing or injecting a proper quantity of kerosene through the nozzle, F. at the time of opening the l intake valve, C.

- The important feature of the present in- Figure 1 is a vertical longitudinal sec-.

1 each looking in the direction of the arrow. A designates a portion of a cylinder head venlion is a vaporizing element adapted to be heated electrically to a temperature sufficient to instantly convert into vapor the charges of kerosene which are injected by the nozzle, F. The vaporizing element consists, preferably, of a hollow member, G, and in the drawings, this member is represented as a cylinder open at its respective ends. The cylinder may be composed of any suitable material, such as metal or an alloy of metals, but itis preferred to make the cylinder of a refractory electrical resistance material, such as carbon.. e have found that carbon is advantageous for many reasons, chiefly because of its durability and of its capability of being heated qulckly to the required temperature by an electric current.

The hollow vaporizing member, G, is provided at its end portions with appropriate means for including it in or as a part of an electric circuit, and in one embodiment of the invention, said hollow member is equipped with metallic caps or rings, g, the latter being fastened securely to the end por tions of the carbon cylinder. The cap or ring, 9, is connected electrically to a wire or conductor, 71, which is attached to a binding post, H, whereas the other cap or ring, 9, is in electrical engagement with another wire. 7L, fastened to another binding post, H. I The two binding posts, H, H, are mounted in bushings, 1', 2", respectively, which are provided in the casing, D, whereby the binding posts are supported externally of said casing and are insulated electrically therefrom.

As shown in the drawings, the hollow vaporizing member, G, is supported in a mixing chamber, D, of the 'cas1ng, D, by the conductors, h, h, the latter servmg to suspend said hollow member, G, within said mixing chamber. It is evident, however, that the hollow member, G, may be supported in any other way within said mixing chamber. As shown in Fig. l, the inlet nozzle, F. is in alinement with the hollow mem ber, G, whereby the liquid combustible admitted by the nozzle is adapted to be sprayed into contact with the inner surfaces of the hollow member, G.

Atmospheric air is admitted to the chamber, D, of the casing by a port, j, herein shown as a slot in the casing, D, see Figs. 1 and 2. This port is provided in the casing at a point near the open endof the hollow member, G. into which the liquid combustible is sprayed by the nozzle, F, whereby air admitted. by the port, 7, is adapted to be drawn into the hollow member, G, and, also, to circulate around said hollow member, G, and in the mixing chamber, D. The area of tliepolt, j, is regulated by a shiftable damper herein shown as a divided ring, J, the sections, 7', j of which are fastened togethcr by screws, j", whereby the annular damper may be fitted to or removed readilv from the casing, D. The shiftable annular damper is provided with a port, is, shown in Fig. 2 as a slot adapted to register with the port, j, of the casing, D, and this damper may be turned on the casing so as to move the port, 1', of the damper out of register with the port, j, or more or less into register with said port, 7', whereby the area of the air inlet is adapted to be varied as desired. The detailed construction of the damper may be 'aried or modified as desired, but as shown, the damper is held in place between flanges, Z, of the casing, D, and furthermore, said damper is provided with a clamp, L, shown in Figs. 1 and 2 as a binding screw which is mounted in the lug, m, of the damper, said binding screw having a suitable hand-wheel, m for its convenient manipulation.

The hollow member, G, is provided with means for protecting it against the action of heat in the mixing chamber, D, thus preventing saidhollow member from becoming too highly heated. Said heat insulating means is represented in Figs. 1 and 3 as a jacket, M, composed, preferably, of asbestos. The asbestos is in the form of a cord or strand wound externally on the hollow member so as to provide a plurality of superimposed layers of insulating material. It is evident, however, that sheet material or solid jacket may be employed.

Adjacent to the end of the hollow member, G, from which the vapor is discharged into the mixing chamber, D, is a baflie. O. Said baffle is shown as being attached to the end portion of said hollow member by suitable screws or stems, 0, fastened to the end plate or ring, -The batlle is represented as a perforated plate which lies quite close to the delivery end of the hollow member, and the air and vapor are caused to circulate through and around this battle as they pass into the mixing chamber, D, whereby the intimate admixture of atmospheric air with the vapor is secured.

The operation of the invention is as follows: The damper, J, is adjusted to the required position so as to produce an air inlet port of the proper area. Before starting the engine an electric current is sup plied to, the hollow vaporizing member, G, in a way to traverse said member, the current being admitted at one binding post and taken oft at the other binding post. The current is supplied for a sufficient length of time to heat the hollow member, G, to a temperature sufiicient to vaporize the kerosene. The oil pump is operated to inject a small quantity of kerosene by the nozzle,

F, into the hollow member, G, said pump being operated at about the period of opening the intake valve,

C. The suction from combustiblevapor.

the engine draws in a supply of air through the port, j,'an(l the vapor due to the contact of the kerosene with the heated surface of the hollow member, G, such air and vapor being mixed by contact with the batlle, O, and the circulation within the chamber, D. The mixture of air and vapor forms a combustible charge which, when admitted to the engine cylinder, is compressed by the action of the piston, and is thereafter ignited by a suitable ignition device in sztidQcflinder,

ignition of the combustible [charge drives the piston in one direction The kerosene is sprayed bythe nozzle, F, directly into the hollow ,member, G, for the purpose of instantly convertingdhe kerosene. into a The vaporized fuel is mixed with atmospheric air as the fuel and air pass through the hollow member, the,

perforated plate and the mixing chamber. The electric current is admitted .to the hollow member, G, for a comparatively short period only, say'fo r the first few explosions,

after which the current is cut off. By this time the engine and the casing, D, are heated sufficiently to vaporize the liquid combustible by contact with the walls of the chamber, D, and with the hollow member, G. The member, G, is kept from being too highly heated by the insulating jacket, M, and by the circulation of air around it, although the material of which themember, G, is composed will not deteriorate readily under the action of the heat.

Having thus fully described the invention, what we claim as new, and desire to secure by Letters Patent isgm 1. In a starting vaporizer, a-mixing chamher, an air inlet thereto, a hollow vaporizing member composed of electrical resistance material, said member being open at its respective ends, means whereby an electric current is adaptedto flow through said resist; 1,nee*"iiiaterial for directly heatingasaid ,meniber, means for supplyinga liquid-combnstible to one open end of said vaporizing m'emberfand a baflie positioned externally to sald vaporizing member and adjacent the v other open end thereof.

In a starting vaporizer for-1nternal combustion engines, a casing having a mixchamber, means for admitting air to said chamber of the casing, a hollow vaporizing member positioned within said mixing chamber, said vaporizing member being composed of electrical resistance material, means for spraying a liquid combustible into direct contact with the interior surface of said vaporizing member, means operating to suspend the vaporizing member and to supply an electrical current thereto, whereby said current is adapted to flow through the electrical resistance material composing said vaporizing member and to directly heat the same, and means for controlling the outflow of a gaseous mixture from said' mixing chamber.

In testimony" whereof we have signed our names to this specification in the presence of two subscribing witnesses.

JOSEPH F. GARCIA. HARRY HERTZBERG. I ABBOT A. LOW.

\Vitnesses:

GEO. E. CoNDrr, GEO. WELLING GloorNes.