USRE14359E

USRE14359E - Internal-combustion engine

Info

Publication number: USRE14359E
Authority: US
Inventors: Charles Day
Filing date: 1917-07-13
Publication date: 1917-09-18

Description

(%.' DAY, G. E. WINDELER 61. P. GRANT.

INTERNAL COMBUSTION ENGINE.

Reissued Sept fArvucmou man JULY 13.1911.

Connected to 'LO8dre$b0h$ive Device.

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Inventor-s: Char-Les na' Georie C. DAY, 6. E.-WINDELER 61 P. GRANT.

INTERNAL COMBUSTION ENGINE.

Eek-Sued Sept v APPLICATLON men JULY 13, i911. v

3 SHEETS-SHEET 2.

Inventor's. Cl arLes Day; George Edward WindeLer & Peter- Grnt, y 1 -Their-dltfor'ne;g

C. DAY. G. E. WINDEL ER III P. GRANT.

INTERNAL COMBUSTION ENGINE.

Reissued Sept. 18. 1917.

APPLICATION FILED JULY I3, I917.

Inven'tbrs. Charles Day, GeorgeEdwardWindeler; b5 etirCa-ant,

The i r-d ttprn 'k UNITED STATES ear-ins OFFICE.

CHARLES DAY, enonon EDWAR wINnnLnR, AND PETER GRANT, or HAZEL GROVE, NEAR s'rocxron'r, ENGLAND, AssIGNons TO GENERAL ELECTRIC COMPANY, A

GORPOIRATION 0 NEW YORK.

HT'IERNAL-COMBUSTIDN EN EIEE.

Original No. 1,221,696, dated April reissue filed July 13, 1917. Serial No. 180,488.

To ZZ whom it may concern:

Be it known that .we, CnARLns DAY, Gnoncn EDWARD WINDELER, and Pn'rnn GRANT, subjects of the King of Great Britsin, and residents of Haaei Grove, near Stockport, county of Chester, England, have invented certain new and useful-Improvements in Internal-Conibustion Engines, of which the following is a specification.

The present invention relates to internal combustion engines in which liquid fuel is forced into the cylinder or cylinders by compressed air furnished by a suitable air compressor. In the operation of such engines it is desirable that the pressure of the air furnished by the compressors shall vary with the load on the engine, 2'. 4 increase as the load increases and vice versa. The ob ject of the present invention is to provide an improved arrangement for this purpose which will automatically vary the pressure in. accordance with the load. 7

For a consideration of what we believe to be novel and our invention, attention is directed to the following specification and claims appended thereto.

In the accompanying drawing Figure 1 is a diagrammatic View of an embodiment of our invention; Fig. 2 is a diagrammatic view illustrating a specific arrangement of connection with a speed governor; Fig. 8 is a side elevation partly in section of the con tacting indicating instrument shown in Fig. 1; Fig. 4 shows a modification of a detail of the invention; Figs. 5 and. i iilustrate modifications of certain parts oi the structure going to make up the invention, and Fig. 7

shows our invention as appiied to an internal combustion engine.

Referring to the drawing, Figs. 1 to and Fi 7. 9 in. ice. es the cas of an compressor and 10 its inlet, said compress being used to supply compressed air for injecting fuel into an intcrnui coi'nbustion engine indicated at A in Fig. i. The coinpressor of which the casing 9 forms a part may be of any suitable type and coi'nprises one or more stages as found desirable. In the present instancait is shown as being driven from the crank shaft of the engine A 9 indicates the suction valve of the compressor 9, and 9 the delivery conduit arrangement being ordinary and well known.

11 is a throttling valve controlling inlet 10 and having its stem 12 connected to a pivotedlever 1.3, the "connection being convenientiy formed by two spaced nuts 14, threaded on the end of the stem and between which one end. of lever 13 is arranged." The other end of the lever is connected with the core 15 of an electromagnet 16, as by having such end project between two shoulders 17 on the core. 18 is a spring surrounding an extension 19 of the magnet core and hearing at one end against a bracket 20 and at the other against an adjustable nut 21 by which its tension may be varied. This spring biases the core of the magnet toward a position tending to close the valve 11. 22 indi- Application for eates a contacting indicating instrument comprising two

pointers

23 and 24 carrying

contacts

25 and 26 respectively. The pointer 28 is the indicating pointer of a suitable pressure gage, 23 being thescale plate thereof. This gage is connected to the delivery side of the compressor in any suitable manner,as by a ipe 23 so that the pointer 23 indicates such pressure. Pointer'24 is insulated from pointer 23 as indicated at 27 and is connected through a rod 28 and lever 29 to a suitable means which is responsive to the load on the engine. The pointers 23 and 2 1 connected by wires 30' to the electromagnet 1d, the connections includin .suitabie source of'electlic energy as the i l 3 iiery 31. pointer which responds the pressure of the compressor moves in ciocl'rwise direction upon increase in pres sure and the pointer moves in a similardirection uon increase in load. The s n from Figs 1 and 3 the pointer 2d, and gement of contacts 26 vaivc ied. This will mean that more air will admitted to the compressor and the den .1. y pressure thereof will increase.

nove in substantially the Assuming the parts to be in a position shown in Fig. 1, if new the load further increases, the pointer 24. will be moved to bring contact 26 into engagement with contact on pointer This will immediately'energize electromagnet 16 and open the valve 11. More air will then be admit ted to the compressor and the pressure willbegin to build up. As soon as the pressure of the compressor increases beyond the point V tact with it, so as to maintain the pressure of the compressor at the desired value.

Referring to Figs. 2 and 7, we have illus trated one arrangement for controlling the pointer 2-1 in accordance with the load on the engine. In these figures indicates a portion of the engine-frame and a suitable type of speed governor which responds to the load on the engine. This speed governor is connected to the lever 29, here shown as a bell crank lever, by a governor lever 34 and a rod 35. In Fig. 2 the full line position shows what may be considered full loader substantially full load position and the dotted lines indicate a condition of lighter load.

\Vith ordinary pressure gages, the indicating pointer can usually be pushed along independently oit' the in'nnediate pressure responsive element ot the gage, and this will, as a. rule, permit the pointer when moved by the speed governor, to push the pointer 23 along ahead of it. If, lujiwever, this is not considered desirable with any particular" pressure gage, then the indicating pointer may be formed in two parts yieldingly connected together as shown by way of example in Fig. 4;. In this figure the pointer is shown as oon'i 'irising two parts 37 and yieldingly coimccted by spring 39. Part 37 is connected with the gage tube or other n'iovable. part of the gage, while the part indepemlently pivoted and mow able relative thereto. \Vith this arrangement it will be obvious that the pointer 2% can move the part 3'8 indepcndently of the part 37.

In Fig. 5 we have shown a modified arrangement for coi'inecting the pointer 24: to thespced. governor 33. A rod 40 is connect ed to the governor lever 34.- at one end and at the other end is conncc .d to a floating lever t l. which has one and connected to a part it} wh' iscontinuously reciprorated by an eccentric 4-? during the o aa-ation of the engine. Connectedat a point intermediate between the ends of the floating lever 41 is a rod 48 pivoted to a supportingarm 49. Adj acent one endthis rod carries spaced abutinents 50 between which an end of the bell governor 33. The abutments 50 will move the lever 29 so that its arm is midway between them. It will then have no effect on this lever since the throw of the eccentric will not be sufficient to move either abutment into engagement with it, and the pointer 24: will stand in the'position in which it is placed by friction. In case of a change in the load, however, the speed governor will move to raise or lower, as the case may be, the rod 40, rod 4.8 and consequently the abutments 50. This will cause them to take up a new region of reci iirocatiion and. they will'act on lever 29 to position the pointer 24 at a point corresponding to the change in load, as will be obvious. This arrangement as just described has the advantage that it takes the work of moving the pointer 24 off of the governor, the governor having merely to position the abutments 50. This results in rendering the governor more sensitive since it is not called upon to move any parts which i'nay offer more or less resistance to movement. The pointer 2t and other parts, in an :lITHI'IgGII'IGilt, for example, as shown in Fig. 2, may offer more resistance to movement than is desired in any particular instance.

In Fig (3 we have shown a n'iod'lfied arrangement tttlELPlIGtl tor use where the en- .gine is utilized to drive an electric generator. In such cases the load on the engine will be practically proportional in quantity of current generated. W e have accordingly shown the load I'O.S1')()]1SlVG device as l'ieing in the form of an elcctromagnet througl'i which the current of the generator may be passed. The plunger 52 of this electromag net is connected by a rod 53 to a segment 5 L which engages a toothed member 55 fixed to the pointer 24. The pull of the magnet is controlled by a sprin 56 the tension of which may be adjusted by the nut 57. This nut is threaded on to a fixed sleeve 58 supported onthe magnet frame and through which the plunger of the cliaitromagnet projects. The one end 01? the spring surrounds the upper portion of the sleeve 58 and'rests against the face of the nut 57,

while the other end takes against an abutment 60 on the plunger. As-will be obvious, the pointer 24 will be positioned by the electromagnet in accordance with the load on the engine. The operation of the arrange ment shown in this figure is thesame as that already described in connection with the other figures of the drawing and further explanation. is considered unnecessary.

In accordance with the provisions of the patent statutes, we have described the principle of operation of our invention, together with the apparatus which we now consider to represent the best embodiment thereof; but we desire to have it understood that the apparatus shown is only illustrative and that the invention can be carried out by other means.

What we claim as new and desire to secure by Letters Patent of the United States, is: r

1. The combination with an internal combustion engine and a compressor for sup plying air thereto for injecting fuel into it, of a valve controlling the admission of air to the inlet of the compressor, and means responsive to the load on the engine and the pressure of the air delivered by the .compressor for positioning said valve.

2. The combination with an internal combustion engine and a compressor for supplying air thereto for injecting fuel into it, of a valve controlling the inlet of the compressor, a device which moves in response to the pressure on the delivery side of the comp -ssor, a second device which moves in res nise to variations in the load on the engnie, and means controlled by said two devices for positioning the valve.

The combination with an internal combustion engine and a compressor for supplying air thereto for injecting fuel into it, of a valve in the inlet of the compressor, an electromagnet for controlling the position of said valve, an electric circuit connected with said electromagnet, and means responsive to the load on the engine and the pressure on the delivery side of the compressor for opening and closing said circuit.

4. The combination with an internal combustion engine, and a compressor for supplying air thereto for injecting fuel into it, of a valve in the inlet of the compressor, and-means for regulating it to vary the delivery pressure of the compressor in accordance with the load on the engine, said means comprising an electric contact which is positioned by the load on the engine, a cooperating contact which is positioned by the delivery pressure of the compressor, an electric circuit which is controlled by said contacts, and means in said circuit for opening and closingsaid valve.

5. The combination with an internal combustion engine having a goverl'. Q, and a compressor for supplying air for injecting fuel into the engine, of a valve in the inlet of the compressor, an electroresponsir e device for positioning it, an electric circuit in which said device is included, a pair of contacts movable relative to each other for opening and closing said circuit, a pressure responsive device which is moved in response to the pressure on the delivery side of the compressor for moving one of said contacts, and means connecting the other contact to said governor.

6. The combination with an internal combustion engine and a compressor for sup plying air thereto for injecting fuel into it, of a valve in the inlet of the compressor and means for regulating it to vary the delivery ressure of the compressor in accordance with the load on the engine, said means comprising a pressure gage connected with the delivery side of the compressor and having an electric contact on its pointer, a second pointer carried by the gage and having a contact which cooperates with the first named contact and is positioned in accordance with the load on the engine, an electric circuit which is controlled by said contacts, and means in said circuit for closing said valve.

In witness whereof, we have hereunto set our hands this 19th day of October 1915.

CHARLES DAY. GEORGE EDWARD WVINDELER. PETER GRANT.

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