US1250639A - Valve. - Google Patents

Description

TED sTATEs PATENT oEEIoE.

GEORGE M. 4PATRICK, OF AUBURN, NEW YORK.

VALVE.

Specification of Letters Patent.

Patented Dec. 1s, 1917.

Application filed October 13, 1916. Serial No. 125,464.

To all whom t may concern.'

Be it known that I, GEORGE M. PATRICK, citizen of the United States, residing at Auburn, in the county of Cayuga and State of New York, have invented certain new and useful Improvements in Valves; and I do hereby declare the following to be a full,

clear, and exact description of the invention,A

selected by me for purposes of illustration,

and the said invention is fully disclosed in the following description and more particularly pointed out in the appended claims.

Referring to the drawing:--

Figure 1 is a side view of the upper por tion of an internal combustion engine cylinder, showing the valve passages in section and my' improved selfV grinding valves mounted in said passages.

Fig. 2 is a diagrammatic view showing one of the valves and its connected parts.

Fig. 3 is a detail sectional View of the lower end of one of the valve stems and its base, to which it is connected for rotary movement. A

One ofthe objects of my invention is to provide a self grinding puppet valve for internal combustion engines, which will be rotated by a fluid passing through the valve passage and will attain such a. velocity of .rotation that upon seating, it will turn sutliciently on its seat to loosen any carbon or the like, which has been deposited on the valve or valve seat. v

To accomplish the above result, I rotatably. mount the valve stem in a suitable base, which is-intermittently reciprocated by a push rod from the cam shaft, and I provide the valve stem with a propeller which is acted upon by the explosive mixture in an inletA valve passage, where thev device is used in the inlet or by the exhaust gases, where the device is used in the exhaust valve passa e. l

In practice I propose'to use my improved construction in both the inlet and exhaust assages, as I nd from actual use, that it 1s ,successfully operable with either valve passage.

.A further object of my invention is to pro vide a self grinding valve, which will/also function as a mixer for the explosive charge.

lVith the .foregoing objects outlined, and

with other objects in View, it will be apparent as the nature of the invention is better understood, that my present improvement resides in the combination and arrangement of parts, and inthe details hereinafter set forth, itbeing understood that changes in the precise embodiment of the invention herein disclosed-may be made within the 4scope of What is claimed, Without departing from the spirit of the invention or sacrificing any of its advantages.

In the drawing 1 deslgnates aninternal combustion cylinder of any `suitable construction having an inlet passage 2 provided with a beveled valve seat 3, and an outlet or exhaust passage 4 having a similar valve seat 5.

Each of the valve passages is provided 'A with an integral sleeve 6 forming a bearing in which a valve stem 7 is mounted for reciprocating and rotary movements, and freely mounted upon the lower end of each valve stem is a collar 8 having an internal beveled edge 9, which rotateson the beveled -I edge 10, of a nut 11, screwed on to the lower end of the valve stem, to prevent the collar 8 from coming oil'. A valve stem base 12 having internal threads 13 is screwed onto external threads 14 of each of the collars 8, and a. screw 15 passes through said base and engages the threads 14 to lock the base to the Coiled springs 16 are mounted between the bases 12 and the valve passages andv act to the device is as follows:

When the piston (not shown) is moved down in the cylinder 1, the valve 17 is raised from the cam shaft (not shown) by means of its push rod 19, andas the explosive mixture is drawn into the cylinder, it passes the propeller 21 on the inlet valve stem, and causes said propeller to rotate and with it the valve 17. .As the charge passes the propeller it is agitated so that a more perfect mixture is formed, and as the valve rescate itself, it

4 the stems to the most advantageous positions for obtaining the highest velocity in rotation.

Also by connecting the valve stems to the bases in the manner set forth, the'tension of the springs 16 may be varied without affecting the rotation of the valve stems.

I am aware that devices have been constructed for rotating the valves to remove carbon, but I believe that I am the first to rotate the valves by mechanism operated by fluid passing through the valves.

What I claim and desire to secure by Letters Patent is 1. The combination with an internal combustion engine having a valve passage provided with a valve seat, of a valve mounted in said passage for reciprocating movement. and cooperating with said seat, mechanical means for raising and lowering said valve,

and means operable by a fluid passing through said passage for rotating said valve while it is raised from its seat whereby the valve in re-seating will rotate slightly Aon its seat and rind any carbon deposit orl the like there rom.

2. The combination with an internal combustion engine having a valve passage provided with a valve seat, of a valve mounted in said passage for reciprocating movement `and coperating with said seat, mechanical means for raising and lowering said valve,

and a propeller mounted on said valve operable by fluid passing through said passage for rotating saidvalve while it is raised from its seat whereby the valve in re-seating will rotate slightly on its seat and grind any carbonI deposit or the like therefrom.

3. The combination with an internal compeller mounted on said stem and bastion engine having a valve passage provided with a valve seat, a valve having a head which coperates with said seat and a 4stem passing through thev wall of-said passage, a base in which said stem is mounted for free rotary movement, mechanical means for raising said valve, a spring located between said base and the wall of the passage for closing said valve, and a propeller mounted on the valve stem operable by a fluid passage rotating said valve while it is raised fromv ,its seat, whereby the valve in re-seating4 will rotate slightly on its seat and grind carbon or the like therefrom.

4. The combination with an en 'ne valve passage having a valve seat, o a valve mounted therein and provided with a stem having its lower end screw threaded, a prolocated in said passage, a collar loosely mounted on the lower end of screw threads, a nut, engaging the screw threads of said stem for securing the collar on said stem, a base engaging the threads of the collar, a coil spring located between said base and passage for moving the valve in one direction, and a push rod for moving the valve in the opposite direction.

5. The combination with an internal combustion engine having an inlet and exhaust through'said passage for said stem, and having-exterior p t passage provided with valve seats, of valves mounted in said passages for reciprocating movement and coperating with said seats,

mechanical means for raising and lowering said valves, a propeller mounted on the inlet valve and operable by the explosive mixture passing through the inlet passage for rotating said inlet valve while 1t is raised Afrom its seat to compel the inlet valve to grind its seat as it re-seats, and 'another propeller mounted on the exhaust valve and operable by exhaust gases passing through the exhaust passage for rotating said exhaust valve while it is raised from its seat,

`whereby the exhaust valve in re-seating will grind its seat. l

In testimony whereof I aiiix my signature...

GEORGE M. rxrniox.

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