US1350344A - Apparatus for priming engines - Google Patents

Description

F. D. swan. APPARATUS FOR PRHMNG ENGINES.

APPLICATION FILED JULY 12. 1917.

I Patented Aug. 24, 1920.

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FREDERICK 1). SWEET, or CLEVELAND, OHIO.

APPARATUS FOR PRIMING ENGINES.

Specification of Letters Patent; Patented 24 1920.

Application filed July 12, 1917. Serial No. 1803031.

orimin an en ine. The olo'ect of the inl b 23 vention is to provide an apparatus which may be operated from the dash of the vehicle, and while priming to heat the fluid'fuel as it passes from the priming cup.

A further object is to provide an apparatus of the kind which is simple of construction and reliable in its action.

Generally speaking, the invention may be said to comprise the elements and combinations thereof set forth in the accompanying claims;

Reference should be had'to the accompanying drawing, forminga part of this specification, in which Figure 1 is an elevation of a portion of a vehicle upon which the apparatus of my invention is employed; Fig. 2 is a vertical section through the priming cup and the adjuncts thereto; Fig. 3 is a sectional plan view transversely of the priming cup. 7

The practice of priming an engine for the purpose of starting thereof is too old and well understood at this time to require any explanation, and the present invention is a carrying forward of that'idea in a manner that permits the priming to be accomplished from where the driver of the car is sitting, and also provides a signal by which the driver may know that the priming apparatus is working, and in addition to all the foregoing, heats the fluid fuel as it passes from the priming cup to the engine, therebyincreasing its ability to ignite.

In the drawing, the engine is indicated at 1 and. the manifold thereof at 2. Mounted upon the manifold is the priming cup proper which is generally referred to at The priming cup comprises a casing 4 forming a container within which is a float 5, which is provided with acentral rod or stem 6. The float in its movement is guided by a frame 7 which is within the body 4.

At the lower end the container 4 has an opening which receives a pipe or conducting member 8, which has a seat 9 at the upper portion thereof with which seat a ball 10 cooperates. This ball 10 is carried by the lower end of the rod 6 and the ball acts as a valve to open and close the passageway through the conducting member 8. u Surrounding the conducting member 8 and incased in any suitable manner, as by a portion 4 of the casing 4, is an electrical resistance element 11, which is thoroughly insulated. from the casing. This element 11 surrounds the conduit 8 and thoroughly andv completely heats the conduit when electrical energy issupplied to the coil 11. Fitting in the lower part of the conduit 8 ma pipe 12. This pipe at the portion which cooperates with the conduit 8 is held in proper relation by means of a nut 13.

- The pipe 12 telescopes with a pipe 14 which is also of nonconducting material, and the pipe 14 has a head portion which seats within a suitable opening to cooperate with a head nut 15, the pipe 14 being'held to the nut 15 by means of a nut 16; The head nut 15 has an opening extending through it, and has a threaded portion 15 which is adapted to be threaded into the manifold of an engins. Within the head nut 15 there is a chamber in which there is a ball 17,'which controlsthe passageway through the head nut 15. This ball is spring-held by a spring indicated at 18, and the spring is held in place by a threaded plug 19, which will be clear from the drawing. It will be apparent that the valve 17 will operate to open upon a suction stroke of the engine. Preferably the nut 15 is insulated from the part of the engine on which it is mounted.

The coil 11 cooperates with a terminal post 20 which is secured to the casing 4 and passes through a bushing 21 which is of insulating material. The coil 11 is electrically grounded. to the casing 4. v

The upper end of the casing 4 is closed by a cover 21 which is of insulating material. In the cover there is an inner terminal mem her 22 which is in direct line with the movement of the rod 6 so that as the float 5 may rise the rod 6 may come into contact with {the terminal 22. This terminal extends upon the outside of the cover, and thcreis provided a thumb nut 23 for engaging and'holding a conductor. 1 It will be apparent from the foregoing description that as the float rises and the'rod 6 comes in contact with the terminal 22, an electric circuit is closed through the coil and through the rod 6 which circuit is'energized from an external circuit, such as the battery circuit of an automobile, which automobile circuit is connected to the portions 20 and 23 which have just been described.

- The cover 21 is provided with an opening 2a with which communicates a pipe 25. This pipe 25 communicates with the outer end of a pump 26, the intake side being connected by a pipe 27 with a source of gasolene supply, as indicated at 28. hen the pump is operated, it will pump gasolene through the pipe 25 to the receptacle 4, and when suflicient gasolenc has been thus pumped the float 5 will rise, opening the passageway from the receptacle 4- through the heating tube 8, until the gasolene reaches the valve 17, which will be opened as previously explained upon the suction stroke of the en gine.

r In the electrical circuit which includes the heating coil 11, the rod (3, and the terminal members 20 and 23, there is placed a lamp 29, which lamp, inasmuch as it is in circuit with the various instrumentalities which have been mentioned, will become lighted when the circuit is closed by the rising of the float This lamp is placed upon the dashboard of a vehicle, and it forms a signal to notify the operator that the priming device is Working.

As previously explained, the heating coil 11 becomes effective when the circuit is closed-by this rise of the float 5. Consequently, the rise of the float 5 not only permits the gasolene to pass through the heating coil, but by closing the circuit and causing the lamp 29 to light it is indicative that the heating coil 11 is in working order.

Having described my invention,I claim 1. The combination with an internal combustion engine of a priming device comprising a receptacle adapted to be mounted adjacent the engine and in communication with the fuel supply for the engine, means for controlling said communication, a valve controlling the outlet from said receptacle, a float within the receptacle said float being operatively connected with the valve whereby as fluid fuel is supplied to the receptacle the float will rise and open the valve.

2. The combination with an internal combustion engine of a priming device comprising a receptacle adapted to receive fluid fuel, said receptacle being adapted .to be mounted adjacent the engine and in communication with the fuel supply for'the engine, means for controlling said communication, said receptacle having an outlet, a valve controlling said outlet, a float Within the receptacle said float being operatively connected with the valve, means for supplying an electric current to pass through the valve stem, a terminal mounted upon the casingwith which the valve stem may cooperate as it rises, thereby to. close the circuit, and an electrically operated signaling device in the beforementioned circuit which becomes operative when the cirried by the float a contact member carried said contacts engaging by the receptacle,

rise of the float, an elecupon the sufficient -trical circuit which includes the said contact members said circuit being closed when the contact members engage, an electrically operated signaling device included in the said circuit which becomes operative upon the closing of the circuit. r

l. The combination with an internal combustion engine of a priming device comprising a receptacle adapted to receive fluid fuel and adapted to-be mounted adjacent the engine and in communication with the fuel supply for the engine, means for controlling said communication, an outlet from the said receptacle, a valve controlling the outlet, a float Within the receptacle, a rod upon which the said valve is mounted and connected to.

the float, a contact member carried by the receptacle and in line with the said rod, a circuit of which the rod and the contact member are a part said circuit being closed by the engagement of the rod and contact member and an electrically operated signaling device forming a part of the said circuit and operated when the said circuit 1S closed.

5. The combination with an internal combustion engine of a priming device comprising a receptacle adapted to receive fluid fuel and adapted to be mounted adjacent the engine and inconnection with the fuel supply from the engine, means for controlling said communication, an outlet forthe said recep= tacle, a valve controlling the outlet, a float within the receptacle said float being operatively connected with the valve, a conduit leading from 'the outlet of the receptacle, means for electrically heating said conduit, a contact member carried by the float, a contact member carried by the receptacle the said electrical heating means and said contacts forming part of a circuit fsaid circuit being closed when the contacts engage. V

6. The combination "with an internalcomibustion engine of a priming device compris ing a receptacle adapted to receive fluid fuel and also adapted to be mounted adjacent the .engine and in communication with the fuel supply for the'engine, means'for con trolling said communication, said receptacle having an outlet, a valve controlling the outlet, a float within the receptacle said float being operatively connected with the valve, a fuel conducting conduit cooperating with the outlet from the receptacle,-means for electrically heating said conduit, a contact carried by the float, a contact member carried by the receptacle, the said contacts and electrical heating means forming a part of a circuit which is closed when the contacts carried by the float and the receptacle are in engagement, and an electrically operated signaling device which is included in the aforesaid circuit and becomes operative when the said circuit is closed.

7. The combination with an internal combustion engine of a priming device comprising a receptacle mounted adjacent the engine and in connection with the fuel supply for the engine, a pump for supplying fuel to said priming receptacle said receptacle having an outlet, a valve controlling the outlet of the said fuel from said receptacle, a float within the said receptacle said float being operatively connected with the valve whereby when the fluid fuel is pumped to the re ceptacle the float will rise and open the valve.

8. The combination with an internal combustion engine of a priming device comprising a receptacle adapted to be mounted adj acent the engine and in communication with the fuel su 31 forthe en ine a um) v P Y a: P

to supply fuel to said priming receptacle said receptacle having an outlet, a valve-controlling the outlet from said receptacle, a float within the receptacle said float being operatively connected with the valve, a conducting conduit associated with the outlet of the receptacle, an electrical heating coil associated with said conduit, a contact member carried by the float and a contact member a11'1'ied by the receptacle, a circuit including the electrical heating means, and the aforesaid contacts said circuit being closed by the engagement of the contacts, an electrically operated signaling device included in the said circuit which becomes operative when the circuit is closed.

9. The combination with an internal combustion engine of a priming device comprising a receptacle adapted to receive fluid fuel said receptacle being adapted to be mounted adjacent the engine and in communication with the fuel supply for the engine, means for controlling said communication said receptacle having an outlet said outlet communicating with the engine, a valve controlling the said outlet, a float within the receptacle said float being operatively connected with the valve, an electrically operated signaling device, a pair of contact members which are adapted to be moved to contact position by the rise of the float within valve controlling the said outlet and float within the receptacle said float being operatively connected with the valve, a pair of contacts within the receptacle said contacts being brought into engaging position by the rise of the float, an electrically operated heating means associated with the receptacle, a circuit including the said heating means and the contacts whereby the electric heating means is energized when the c011- tacts are closed.

11. In an apparatus for priming an engine, a receptacle mounted adjacent the engine said receptacle having an outlet which communicates with the fuel supply to the engine, a pump for supplying fuel to said priming receptacle, a valve controlling the outlet of said fuel from the said receptacle, a

float within the receptacle said float being operatively connected with the valve whereby when the fluid fuel is pumped into the receptacle the float rising to open the valve, a pair of contacts within the receptacle, said contacts being moved to closed position by the rise of the float, an electric heating means associated with the said receptacle, a circuit including the said contacts, andthe electrical heating means whereby when the float rises and closes the contacts the heating means is operated.

In testimony whereof I hereunto aflix my signature.

FREDERICK D. SWEET.

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