US1150385A - Primer for internal-combustion engines. - Google Patents

Description

w. 0. RENTZ, JR. PRIMER FOR INTERNALCOMBUSTION ENGINES,

APPLICAHON FILED NOV. 21,1914.

1 1503859 Patented Aug. 17, 1915.

2 SHEETS-SHEET 1.

w. c. RENTZ, 1R.

PRIMER FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED NOV. 21, I914.

Patented Aug. 17

2 SHEETS-SHEET 2.

UNITED STATES Parana OFFICE.

WILLIAM C. RENTZ, JR.,

or ATLANTA, GEORGIA.

PRIMER FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented Aug. 17, 1915.

Application filed November 21, 1914. Serial No. 873,332.

chambers of the several cylinders of the engine, in the proper and requisite quantity for each cylinder, the distributing means being manually controlled by the operator in his seat in the machine, also to render the apparatus safe by preventing any possibility of back fire from the engine, and by maintaming the feed pipes for the priming agent in an empty and dry condition when not in use. I 1

l further object of the invention is to pro- -vide means for controlling the delivery'of the priming agent from the reservoir to the feed pipes, and also means for controlling the discharge ends of said pipes, the said controlling means being operable independently of each other, whereby the supply ot' priming agent to the cylinders may be measured or regulated in accordance with weather and other conditions and whereby also the safety of the apparatus is further increased. v

Another object of the invention is to em- 7 body the invention in an apparatus which is capable of being easily applied to any internal combustion engine already in use, requiring no material alteration of the engine or any part thereof.

lVith the above and other objects in view,

- the invention consists in the novel construction, combination and arrangement of parts, as herein described, illustrated and claimed.

In the accompanying drawings Figure 1. is a 'view partly in .side elevation and partly in section illustrating the application :of this invention to an internal combustion engine as use'd in automobiles and the like.

Fig. 2 is a plan view of the engine, showing the dash controls for the priming apparatus. Fig. 3 is an enlarged vertical longitudinal section through the reservoir for'the priming agent, showing the valve mechanism. Fig. 4 is an enlarged detail elevation showing one of the spark plugs and one of the chambered valve casings used in connection therewith and supported thereby. Fig. 5 is a diametrical section through the chambered valve casing shown in Fig. 4, showing the valve. Fig. 6 is a view partly in side elevae -tion and partly in section of one of the spark plugs. Fig. 7 is a View partly in side elevation and partly in section showing a modified form of the priming apparatus. Fig. 8 is a section through the reservoir illustrating-another modification employing a single controlling valve. Fig. 9 is a horizontal section on the line 9-9ot' Fig. 8.

Referring to the drawings A generally designates an internal combustion engine which is conventionally shown.

2 designates the radiator used in conjunction therewith in automobile practice, 3 the dash of the motor vehicle, 4: the engine hood and 5 the return pipe of the water circulation system, all of said parts being of the usual construction and relative arrangement.

In carrying out the present invention, I employ a reservoir 6 for containing a priming agent of any descriptlon preferably in liquid form, said reservoir 6 being arranged at a suitable elevation above the engine to give the requisite fall for the priming agent. By reference to Fig. 3 it will be seen that the reservoir 6 is provided in the bottomv thereof with a series of valve casings 7, there being one of said casings for each cylinder of the engine. Adjacent'to the bottom of the reservoir 6, each valve casing 7 is provided with inlet holes 8 and with an internal valve seat 9 in connection with which operates a valve 10 shown as of the poppet type. The stem 11 of each valve passes through a guide opening 12 in the upper end of the valve casing and above said casing it is provided with a flange or shoulder 13 against which presses one end of a coiled expansion spring 1a the opposite or lower extremity of Which-bears ceive a threaded nipple 31 preferably pro against a shoulder 15 on the valve casing 7. The spring l-l therefore acts to hold the valve 10 normally closed.

In order to simultaneously open all of the valves 10, I employ a common operating bar 16 which is provided with holes 17 for the stems 12 of the valves. Bearing against the upper side of the common operating bar 16 is the expanded base lb of a plunger stem 19 which works through a stulling box 20 in the top of the reservoir (5 where it is adapted to be acted upon by the arm 21 of a valve operating lever 22 fulcrumed at '23 on the reservoir 6 and having attached thereto an oper ating connection 2t which extends, through thevdash 3 where it is provided with an operating head or handle :25 within reach of the operator in his seat.

26 designates a plug for closing the inlet or filling opening of the reservoir (5.

Each of the valve casings 7 extends throughthe bottom wall of the reservoir (3 and suliiciently below the same to allow for the formation therein of annpen air vent .27 which is provided for the purpose of allowing moisture to eyaporajietrom the feed pipe connected therewith are hereinafter particularly referred to and also to admit air to said pipe to allow the priming liquid to feed through the pi pe; The lower extremity of each valve casing T is reduced and thr *ad ed as shown to receive a union '35 by which one of a series of feed pipes 29 is secured tightly to said valve casing. The pipes 29' are equal in number to the number of-cylinders ot' the engine, and as shown in Figs. 1 and 2, extend to points adjacent to the spark plugs ofthc several cylinders.

Referring now to Figs. 4, 5 and (3, it will be observed that I employ a special form of spark plug which in addition to the usual construction thereof embodies an L-shaped passage 30. The upper end of said passage 30 extends laterally with respect to the spark plug and is internally threaded to revided with right and left hand threads so that it may be crowed s multaneously into the passage referredto m the spark plug and into an internally threaded opening in a chambered valve casing 33 shown as provided with a nipple 3t to which the dis-f charge end of one of the distributing pipes 29 is connected. The casing 33 contains a chamber 35 for the priming liquid which is discharged into the same from the respective feed pipe 29, the priming liquid being held therein by means of the valve 36 which cooperates with a seat 37 within said casing. The lower end of the casing is closed by means of a threaded plug 38. The stem 39 of the valve 36 extends through a 'guide. opening 40 in the upper endot' the casing 33 and the valve 36 is held: normally closed by means of a coiled expansion spring l1 one end of which bears against the upper end of the casing 33 while the other end bears against a shoulder or flange l2 on the stem 39. Cooperating with the stem 3%) is the arm 43 of a valve opening lever ll pivotally mounted at T5 on the valve casing A lever ll is used in connection with the stem 30 of each valve 36 and all of said levers -.l-.l are connected for simultaneous operation by means of a common connecting rod 16 which as shown in Figs. 1 and 2 ex tends through the dash 3 of the vehicle where it is provided with a suitable operating head or handle N. This enables all of the valves 36 to be simultaneously operated and further enables said valves 30 to be operated subsequently to and independently of the primary valves 10 hereinbefore described.

The inner end of the spark plug is shown as provided, with an annular liquid distributing channel or groove lb within which is a concentric liquid guard 49 which operates to detlect the falling liquid away from the spark terminals of the plug.

Under the arrangement illustrated in Fig. 7, the reservoir 6"- is provided with an auxiliary bottom chamber 50 which is.air tight and adapted to hold compressed air furnished by a pump or air compressor :51 from which a pipe 52 leads into said chamber 50. The pipe 52 is provided with a branch 53 over whiclrthc operator may place his finger while forcing'air under pressure into the chamber 50. The feed pipes 29', under this arrangement, have their upper ends open and provided with funnel-shaped receiving ends 54 to catch the priming liquid as itis released by the valves in the bottom of the reservoir 6. The arrangement just described enables the priming liquid to be forced by pressure through the feed pipes '29 to the engine where the necessary fall for the priming liquid cannot be obtained on account of their being insuliicient space in some cars under the hood and above the engine.

Under the arrangement shown in Figs. 5 and 9, the reservoir 6 contains a single controlling outlet valve 55 which has its stem {)6 arranged to be operated by the same means and in the same manneras the stem or plunger 19 shown in Fig. 3. In this case a valve seat 57 is formed centrally of the bottom of the reservoir (3 and beneath said valve and its seat there is arranged a distributing chamber-5S to which the feed pipes 29" are connected, the receiving ends thereof being arranged in a circular series as shown in Fig. 9 while between the receiving ends of said feed pipes there is arranged a cone shaped deflector 0r distributer 59 the apex of which isin line with the center of the' valve 55. Thus as the priming liquid is received in the distributing chamber 58 it is deflected and distributed to the feed pipes 29.

In operation, the handle 25 is operated to open all of the primary valves 10 simultaneously thereby permitting the priming liquid .to pass in equal amounts through the feed pipes 29 to the chambers of the casings The handle is then released and the valves 10 are closed by the springs ll. The operator then manipulates the other handle 47 and simultaneously opens all of the valves 36 thus liberating the charges of priming liquid in the chambers 35 and permitting the same to pass into the combustion chambers of the cylinders. The handle 47' is then releasedand the valves 36 are closed by the springs 41, said valves thereafter preventing back fire. The heat from the engine causes any moisture remaining in the feed pipes 29 to quickly evaporate and pass out through the vents 27. The engine is then ready to start. Under the arrangement shown in Fig. 7 the operator places his finger over the branch pipe 53 and then forces the air into the chamber 50, the valves 10 being open to provide for the discharge of the requisite amount of priming liquid from the reservoir to each of the feed pipes :29, the liquid being forced by the air through said feed pipes. Under the arrangement shown in Figs. 8 and 9 the re lease of gasolene from the reservoir is controlled by a single valve which in connection with a distributer or deflector, causes the priming liquid to be directed and distributed to the feed pipes.

I claim 1. A primer for internal combustion engines, embodying in combination, a reservoir for priming liquid, feed pipes for conducting said liquid from the reservoir to the cylinders of the engine, a spring seat-ed "valve controlling the receiving end of each of said pipes, a common operating bar for simul taneously unseating all of said valves, said bar being located with said reservoir, and manually controlled means for actuating said common operating bar.

' 2. A primer for internal combustion engines, embodying in combination, a reservoir forvpriming liquid, feed pipes for conducting saiddiquid from the reservoir to the cylinders of the engine, valve casings within said reservoir to which said pipes are connectedpa spring seated valve controlling each of said pipes, located in one of said valve casings, a common operating bar for simultaneously unseating all of; said valves, and manually controlled means for actuating said common operating bar.

3. A. primer for internal combustion engines, embodying in combination, a reservoir for priming liquid, feed pipes for conducting said liquid from the reservoir to the cylinders of the engine, a spring seated valve controlling each of said pipes, a common operating bar for simultaneously unseating all of said valves, and manually controlled means for actuating said common operating bar, a second series of valves adjacent to the discharge ends of said pipes, and means for simultaneously operating all of the valves of the second series.

4. A primer for internal combustion engines, embodying in combination, a reser voir for priming liquid, feed pipes for con ducting said liquid from the reservoir to the cylinders of the engine, a spring seated valve controlling each of said pipes, a common op erating bar for simultaneously unseating all of said valves, and manually controlled,

means foractuating said common operating bar, a second series of valves adjacent to the discharge ends'of said pipes, casings for the last named valves each embodying a priming liquid chamber, the exit of which is controlled by one of the last named valves, and means for simultaneously operating all of the valves of the second series.

5. 'A primer for internal combustion engines, embodying in combination, a reservoir for priming liquid, feed pipes for conducting said liquid from the reservoir to the cylinders of the engine, valve casings withing said reservoir to which said pipes are connected, a. spring seated valve controlling each of said pipes, located in one of said valve casings, a common operating bar for simultaneously unseating all of said valves,

' means for actuating said common operating bar, a second series of valves adjacent to the discharge ends of said pipes, casings for the last named valves each embodying a prim.- ing liquid chamber, the exit of which is controlled by one of the lastnamed valves,

and means for simultaneously operating all,

of the valves of the second series, and a.

" spark plug for each of said chambered valve casings, each plug being in communication with the respective chambered casing.

v 7. Ina primer for internal combustion engines, the combination of a reservoir, a valve controlling-the discharge of fluid from said reservoir, a conducting pipe arranged to 10 passage and embodying a measuring cham- Oopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents ber, a feed pipe leading from said reservoir to said valve casing, and a valve in said casmg forming a Wall of said measuring chamher.

In testimony whereof I aifix my signature 15 Washington, D. G.

Images