US1229571A - Valve. - Google Patents

Description

J. P BARKER. VALVE. APPLICATION FILED AUG-28. 1916- Patented J 11119 12, 1917.

- wzznesses, f222/erz J02;- r7652? .2 ,Eareh- Tlhl TTE s'rarus PATENT JOHN P. BARKER, OF LOS ANGELES, CALIFORNIA, ASSIGNOR TO LOS ANGELES MOTOR CAR COMPANY, OF LOS ANGELES, CALIFORNIA, A CORPORATION OF CALIFORNIA.

VALVE.

To all whom it may concern:

Be it known that 1, JOHN P. BARKER, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented new and useful Improvements in Valves, of which the following is a specification.

This invention relates to valves, and more particularly to valves for internal combustion motors and the like, and it has for its object to provide an improved valve which may be accurately regulated as to extent of opening or capacity and which may be readily removed for purposes of repair, adjustment or the like and which will be relatively simple in construction and organlzation. The improved valve is shown as used it being understood that the valve is of the automatic orself-acting type.

lVith the above and other objects in vlew,

the invention consists in the novel and useful provision, formation, combination, association, and relative arrangement of parts,

members and features, all. as hereinafter de-. scribed, shown 1n the drawlng, and finally pointed out in claims.

In the drawing:

Figure 1 is a central vertical sectional view of an improvedvalve constructed and organized in accordance with the invention, the same being shown as installed .in place on an internal combustion motor cylinder, the valve casing in part forming the intake duct of such motor; v v

Fig. 2 is a transverse sectional view taken on the line an -m Fig. 1, and looking inthe direction of the appended arrows; and F ig. 3 is a transverse sectional view taken on the line a2 -m Fig. 1, and looking in the direction of the appended arrows.

Corresponding parts in all the figures are designated by the same reference characters.

Referring with particularity to the drawing, in the embodiment of the invention Specification of Letters Patent.

Patented June 12, 1917.

Application filed August 28, 1916. Serial N o. 117,267.

therein shown A designates a valve casing, B designates a valve supporting means, 0 designates a valve body, D designates yielding means for holding the valve body C to its seat, E designates a quick detachable plug for holding the parts in assemblage, F designates adjustable means for limiting the valve travel, and G designates the cylinder. of an internal combustion motor to whioh'the valve is shown as applied.

The valve casing A preferably consists of a tubular body 4 provided with an aperture 5 preferably formed for communication with a motor intake pipe, not shown, which may lead from a suitable carbureter. Such intake pipe may be connected with the valve casing at 6, the valve casing being suitably faced and provided with flanges 8 in which threaded apertures 9 are provided to accommodate bolts passing throughv suitable flanges in the intake pipe. The casing 5 is further provided with a faced portion 10 adapted to bring the hollow interior of the valve into registration and communication with. a passage 11 in the motor cylinder casting and leading to the interior of such motor cylinder. Ears 12 are provided at the faced portion 10, such ears being apertured as at 13 to accommodate suitable bolts 14 which serves to unite the valve casing with the motor cylinder. The end of the valve casing 5 opposite the faced portion 10 is provided with a threaded aperture 15 into which the plug E is fitted. Between orifice 5 and the point of communication of the interior of the valve body and motor cylinder an internal annular seat 16 is provided, such seat being preferably rabbeted as at 17. A relatively narrow bridge 18 is provided interiorly of the tubular body 5 and below the seat 16.

The valve supporting means B preferably consists of a tubular member 19. provided with an annular flange '20 adapted to rest upon the seat 16 and be securely held thereto when the plug E is in place. The member 19 is apertured as at .21 so that communication between the valve casing orifice 5 and the interior of the member 19 is established. A transverse spider 22 is preferably formed integrally with the member 19 and supports a boss 23 centrally in the member 19. The boss is provided with aperture 24; and serves as a guide for the stem of the valve body C. The lower edge of the member 19 is formed into a valve seat 25. The member 19 is preferably fitted to match interior portions of the casing A as at 25.

The valve body C is preferably of the puppet type and the disk 26 thereof is preferably beveled as at 26 to match the seat 25. The stem 27 extends from the disk through the aperture 24: in the boss 23 and is held in position by a compression spring 28, constituting the yielding means D. Said spring 28 is seated on the spider 22 at its one end as at 28 and bears against a washer 29 secured to the valve stem at its other end.

The plug E preferably consists of an externally threaded member 30 threaded into the tubular body 4: and provided with a portion 31 whereby by means of a suitable tool the plug may be unscrewed. The member is shouldered as at 32 to accommodate the upper portion of the member 19 against which it bears when in position.

The adjustable means F preferably comprises a cap screw or the likev33 threaded into an aperture 34 providedin the bridge 18 and preferably centrally of the tubular body 4, and a lock nut 35 threaded upon the cap screw 33 andpreferably of larger diameter than the head 33 of the cap screw.

' The motor cylinder shown at G is of the 1 type illustrated and claimed in a companion application for U. S. patent to be filed by me, though it will be understood that the improved valve may be used in connection with any other suitable motor cylinder or in totally different fields, without departing from the spirit of the invention.

The operation, method of use and advantages of the invention will be readily understood from the foregoing description taken in connection with the accompanying drawing and the following statement:

' during the induction stroke.

A charge of gaseous fuel being inducted by the piston of the motor due to the partial vacuum formed in the motor cylinder will unseat the valve disk 26 the spring 28 permitting su h unseating of the valve during the inductlon stroke and reseating of the valve when the partial vacuum has been filled. Upon the compression stroke of the motor piston the compressed charge may act against the valve 26 but none of the gaseous fuel will pass the same as the valve is held tightly to its seat by the spring, the compressed charge further aiding in seating the' valve. After the charge has been fired in the motor cylinder and exhausted therefrom, the valve may again open in response to the pressure of the gaseous fuel fixture thereon I I In order to limit the travel of the valve 26, and by such means regulate the volume of the charge admitted, the means F are provided and, in multi-cylinder motors each such means F will be independently adjusted to suit the requirements of the particular motor cylinremoved from its position in the valve casing A. This will give access to the means F and by means of a suitable tool such as a socket wrench the cap screw 33 may be adjusted so that its head 33" will stop the valve in its travel in an opening direction at just the desired point to make for highest valve efiiciency or permit the piston to induct the proper charge. After the cap screw 33 has been so positioned a larger socket wrench may be passed over the head 33 and engage the nut 35 which nut by rotation on the cap screw may be caused to lock the screw in a position of adjustment in the bridge 18. It is apparent that the valve may be easily ground to its seat while the mounting carrying the same is in detached position, and after all proper adjustments have been made the mounting with the valve 26 may be returned to the casing and the plug E screwed into place clamping the valve mounting between such nut Eand-the annular seat 16 in'the casing.

The provision of adjustable means in the path of travel of the valve disk avoids the necessity of using a heavy valve stem reciprocating with the body and means on such valvestem to stop the valve in its travel, the elimination of such parts permitting the use of a considerably lightened valve stem for a given installation and likewise the use of a valve for internal combustion motors and the like, or for other high speed work; in the use of valves of large sizes as intake valves for internal combustion motors and the like, the great weight of the valve'and its stem, in case the valve is controlled as to travel, or limited as to its travel bythe stem, can only be used for slow speed work due to the pounding or clashing of heavy valves if it is attempted to cause their reciprocation at highspeeds; furtherclaim and desire'to secure by Letters Patent:

1.' Infan internal combustion motor intake valve, a valve casing adapted to communicate with the interior of a cylinder of an internal combustion motor at one end of.

such casing and adapted for connection with an intake pipe at another zone in the said casing, a removable valve cage fitted in said casing and provided with an annular valve seat, a puppet valve comprising a disk and stem portion mounted in said valve cage and adapted for coaction with said seat, a removable plug for maintaining said valve cage in position in said valve casing, and means for limiting the travel of the valve in a direction away from its seat; said limiting means comprising a support in said valve casing and extending into the path of travel of said valve, and a member adjustable with respect to said support and adapted to arrest said valve in its travel whereby said valve and cage may be removed and access had to said limiting means to adjust the same upon removal of the plug.

2. In an internal combustion motor intake valve, a valve casing adapted to communicate with the interior of a cylinder of an internal combustion motor at one end of such casing and adapted for connection with an intake pipe at another zone in the said casing, a removable valve cage fitted in said casing and provided with an annular valve seat, a puppet valve comprising a disk and stem portion mounted in said valve cage and adapted for co-action with said seat, a removable plug for maintaining said valve cage in position in said valve casing, and means for limiting the travel of the valve in a direction away from its seat; said limiting means comprising a support in said valve casing and extending into the path of travel of said valve, and a member adj ustable with respect to said support and adapted to arrest said valve in its travel whereby said valve and cage may be removed and access had to said limiting means to adjust the same upon removal of the plug; said adjustable member being accessible for adjustment only after removal of said plug and withdrawal of said valve cage with the valve carried thereby.

3. In a valve for internal combustion motors, a casing having an orifice for communication with an internal combustion motor cylinder and an orifice at an angle thereto adapted for communication with an intake pipe, a cylindrical valve supporting cage in said casing, an annular seat for said valve supporting cage, a plug adapted to be applied to said valve casing and between which and said annular seat said valve supporting cage is clamped, a relatively thin puppet valve having a stem supported in said valve cage, a spring co-acting with said stem to hold said thin valve in contact with an annular seat provided on said valve supporting cage, and means in said casing for adjustably limiting the travel of said valve; said valve limiting means comprising a support springing from the internal walls of said valve casing, and a member threaded into said support and extending into the path of valve travel and provided with looking means to lock the same in any position of adjustment; said plug sealing said valve casing and said threaded member and said valve being accessible only after removal of said plug.

4. In an internal combustion motor intake valve, a valve easing adapted to communicate with the interior of the cylinder of an internal combustion motor at one end of such casing and adapted for connection with an intake pipe at another zone in said casing, a removable valve cage fitted in said casing and provided with an annular valve seat, a puppet valve comprising a disk and a stem portion mounted in said valve cage and adapted for co-action with said seat, a removable plug for maintaining said valve cage in position in said valve casing, and means for limiting the travel of the valve in a direction away from its seat; said limiting means comprising a support in said valve casing and extending into the path of travel of said valve, and a member adjustable with respect to said support and adapted to arrest said valve in its travel whereby said valve and cage may be removed and access had to said limiting means to adjust the same upon removal of the plug; said limiting means being entirely independent of said valve.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN P. BARKER.

lVitnesses:

ALFRED H. DAEHLER, WILLIS S. MITCHELL.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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