US1298068A - Gas-engine governor and auxiliary air-inlet. - Google Patents

Description

B. T. McCANNA & E. R. KLEMM. GAS ENGINLGGVERNOR AND AUXILIARY AIR INLET APPLICATION F!L ED.SEPT. Il, |916.

1,298,068- v Patented Mur. 25, i918..

IIIIIE mv ZZ ran smarte PATENT critica.

BENJAMIN T. MCGANNA AND EMIL It. RLEMM, or CHICAGO, ILLINOIS.

GAS-ENGINE GOVERNOR A-ND 'AUXILIARY AIR-INLET.

. To all whom it may concern.:

Be it known that we, BENJAMIN T. MC-

-CANNA and EMIL R. KLEMM, citizens of the United States, and residents of the city, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in (las-Engine Governors and Auxiliary Air-inlets; and we do hereby declare that the following is a full,

clear, and exact description of the saine, reference being had to the accompanying drawings, and to the numerals of reference marked thereon, which forni a part of this specification.

This invention relatesto a gas engine governor mechanism adapted to utilize the dynamic effect of flow of the inlet fuel mixv ture to the engine, to move a flow impedance kto be connected to the manifold of an en# gine, and provided with an impedance disk mov-ably lmounted therein subJect to the dynamic as well as suction effect of flow of fuel mixture from the carbureter into the intake manifold, and movable automatically to different adjusted positions` acc'ordingto conditions of suction and fiow, to impede the flow and thereby afford a limitation upon the maximum output from the engine both in power and speed by regulating the flow of fuel mixture thereto.

It is also an object; of this invention to construct. a governor mechanism embodying a cylindrical section or casing adapted to be connected between the carbureter and intake manifold ot' the engine, and provided with an impedance disk movable against spring stress toward and within a restricted portion of said casing according to vtlie conditions of suction yand flow induced by the engine. and with means limiting the movement. of said impedance disk to a. certain predcterinined adjusted position whereby the extent of interference of flow of fuel mixture therepast ispredeterniincd, thereby governing the output tothe engine Specification of Letters Patent.

Patented nain 25, iets.

y Application led September 11, 1916.A Seri'al No. 119,556.

by controlling the flow of fuel mixture thereto.

It is also an object of this invention to construct a governor mechanism wherein an impedance disk is mounted between the oat-v let from the carbureter and the inlet of the fuel manifold of an engine, subject te the flow therethrough of fuel mixture from the carbureter, and operating to impede the flow certain predetermined amounts to gov y lern the possible output of the engine, and operating when moved into an extreme position, to admitan additional supply of yair into the fuel mixture as it flows into the manifold.

It is finally an object of this invention to construct a fuel governor and-auxiliary air supply for 'a' hydro-carbon motor operated automatically according to conditions of flow of fuel mixture to the engine. serving to impede th'e How according to certain coni ditions of operation to govern the output of the engine, and serving further to permit an additional supply of air into the mixture dependent upon the adjustment of the device,4

The invention (in a preferred form) is illustrated in the drawings and hereinafter more fully described.

On the drawings:

Figure 1 is a fragmentary elevational view illustrating a device embodying the principles of our invention, connected he- 'tween the carbureter and manifold of a Fig. is a fragmentary view partly broken f laway and shown in section of an auxiliary attachment for the governor device.

As shown in the drawings:

The reference numeral 1, indicates' a pipe section member or easing provided with an attaching flange 2, at the upper end thereof, and another. flange 3, at the lower end thereof, and with the inner wall of the casing restricted or convergent upwardly. from a point near the lower end of the device' toward the upper end thereof. An integral les diametrically disposed cross-piece or member -l, is formed across the upper end of the device, and is provided` with a boss 5, through which an axially disposed aperture or passage is provided, and communicating laterally into 4said passage is another passage (i, drilled through fromone end of saidl cross-piece Ll. A threaded plug 7 having a small passage therethrough, is threaded into the outer enlarged end of the passage 6, flush with the endsurface'of the yflange Slid-V able through the tubular boss 5, is a stem 8, having a reduced portion 9, near its lower end, and at its extreme lower end threaded and having secured thereon an impedance disk 10, with a plurality ofaperturesll, therethrough, the diameter of said disk being less than the greatest diameter of the interior'of the casing l1, andislightly greater than the smallest diameter of the restricted portion. of said casino'. A nut 12, is threaded upon Vthe upier end .of 'the stem 8, `and is retained fromc isengagement therewith by a. Cotter-.pin lfthus serving to limit thedown-z, ward movement ofsaid stem 8, as clearly shown in Fig. 2. A coiled compression spring 14., is seated upon the upper surface of the impedance disk l0, and bears at itsupper end beneath said cross-piece 4, serv-- ving normally to hold the impedance disk downwardly lin the lower enlarged end of the casing 1. Threaded through said crosspiece 4, is a long bolt or screw 15, provided with a lock nut 16, the lowerend of said bolt forming a stop for the impedance disk 10, in its upward movement as shown in Fig. 3, so that by adjustment of said bolt into different positions, the limiting position of said impedance disk 10, in its upward movement may be determined. The'upper flange 2, of the device is bolted through an attaching liange 17, formed on an intake manifold pipe 18, shown fragmentarily in Fig. 1, and secured to the lower flange 3, of thedevice,l is the" attaching Dflange'of a Acarbureter 19, also shown only fragmentarily in Fig. 1.

As shown in Fig. 6, the small aperture inlet air plug 7, may be replaced by a pet-cock 20, having a priming cup 21, so that by ad-y justment eithe valve of the 'pet-cock,` the inflow `of air can be regulated and furthermore, the pet-cock may be used to introduce fuel or other fluids for Vpriming or other purposes. I

The operation is as follows:

When the `engine is ingoperatiom'a flow of fuel mixture from the carbureter 19,takes place to the intake manifold 18, of the engine, through thecasing member 1, of the device embodying the principles of my invention, and the suction effect -as well as the dynamic effect of the flow into the manifold 18, is exerted upon the impedance disk 10, and, as the suction or rate of flow increases, the impedance disk 10, is caused to move upwardly against the compression of its spring 14. Such movement of the disk ll, causes thehsame to move into the restricted portion of the casing l. thus limiting the flow of fuel mixture around the periphery of said impedance disk, although, of course, a certain flow may take place through the apertures 11, therein, and'this limitingeii'eet' or control of fuelserves to governV the maximum possible output of the engine, and therefore the speed in its relation to power output.

When the impedance disk 10, moves npwardly a certain amount,'the reduce'd portion 9, of ythe stem 8, moves upwardly such that` the inner end of the passage 6, cored through the cross-piece l, is opened-and anv in et supply of air is thus providefd, which i'sdraw'n downwardly through the tubular boss 5, and deflected by the disk 10, radially, outwardly to insure a thorough intermixture thereof with the fuel mixture fronrthe carbureter. vAdjustment of theknut 12, serves tol vary the initial stress upon the spi-ingle, `which resists movement of the impedance disk and 'adjustn'ient of the screw er bolt 15, serves to change the limiting vposition of movement of the disk. y y f Ve are awarethat various details of construction may be varied through a wide `range without departing from the principles of this'invetion, and we therefore do not purpose. limiting the patent granted other# wise than necessitated by the prior art.

TvVe claim as our invention: P

1.' In a governor device of the class de-v scribed, a easing member interiorly tapered, an impedance .disk movable therewithin to .vary the area ofpassage between the'periph- `ery of said disk and the Walls of the casing i member, means resisting .movement of said disk, adjustable mechanisms for limiting the extreme movements of said disk and Ameans adapted by movement of the disk to admit air into the fuel mixture to vary the'quality' of the fuel mixture.

. Ina governor device ofgthe class described, an interior-ly tapered 'asiig member, animpedance disk movable therein -to vary the areaof passage through said member, means resisting movement of said disk, 115A mechanism adjustable in said casing member` to limit the movement of said disk by contact therewith and means adapted to admit air into the mixture as the impedance disk restricts the passage through the'member.

3. In a governor deviceof the class de. scribed, a casingV member having a restricted passage therethrough, an impedance disk lof less diameter than the greatest interior diameter of said casing member', a stem on which said disk .is mounted having a reduced portion, means associated with Vsaid stem to limit the extent of movement of said disk and stem in one direction, means adjustable in the casing member to limit the extent of movement of said stem and disk in the other direction and a passage adapted to communicate with -the reduced portion of the stem to admit airv around the stem into the casing when said stem and disk are movedin one direction. .l

et.v In a device of the class described the lcombination of -a tubular casing, having attaching means at earch end and a tapered passageway therethrough, a valve resiliently mounted 1n the passageway and operable by suction to restrict the passageway, said valve' being provided with a plurality of perforations afording a constant area of communication through the casing and adapted to separate the fuel mixture in its passage through the casing, into a plurality of streams. l f

5. In a governor` device of the class rdescribed, a casing member, an impedance disk movable therewithin to vary the area ot' passage through said casing member, means resisting movement of said disk, and mechanism operatingto admit an additional supply of Aair-into the mixture flowing through said device as the area of passage through said casing member is reduced.

G. In a governor device of the class described, ,an interior-ly tapered casing member, an impedance disk movable against spring stress within said member to reduce the area of passage therethrough, mechanism operating to admit/an additional supply of air into theA luid mixture flowing through said casing member as the area of passage through said casing member is varied, and .means limiting the extent of move- 'ment of said disk.

7 In a device of the class described the combination with a carbureter and engine intake pipe 'of'an attachment adapted t0 be interposed therebetween and comprising a tubular casing'having attaching' means at each end and a tapered passageway therethrough, a valve resiliently mounted in the passageway and operable by suction in the intake pipe to restrict said passageway, and means for delivering the vfuel mixture from the carbureter side of the valve tothe intake pipe side of the valve'in a plurality ointermixing streams.

8. In an autom the class described the combination with an integral tubular rasing formed with. a tapered tubular passageway therethrough, at-- taching means at each end and a support for holding a stem axially in the passageway, of a stem mounted in the support, a spring controlled valve on the stem movable axially in the passageway and operatedby suction to yrestrict said passageway, and adjustable means for limiting the movement of the f valve by suction.

In testimony' whereoi:l we have hereunto subscribed our names in the presence of two subscribing witnesses. ,I

BENJAMIN T. MGCANNA. EMIL R. KLEMM.

atie regulating device ofv

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