US1373346A - Valve-stem lubricator - Google Patents

Description

J. R. MOORE.

VALVE STEM LUBRICATOR.

APPLICATION FILED FEB. 27, 1920.

Patented Mar. 29, 1921.

f UNITEDSTATEISI. PA ENT F C R. NEOORE, OF PITTSBURGH, PENNSYLVANIA.

VALVE-STEM nuanceron.v

Specification of Letters Patent. Patented Dia 29, 1921.

Application filedrebru i'y'ar, 19st. Serial No.'361,909.

To all whom it may concern:

Be it known that I,-JAMns R. MOOR a resident of Pittsburgh, in, the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Valve-Stem Lubricators, of which the following is a specification. V

q The invention relates to intake andexhaust valves of internal combustion engines, or in other words,to valves for controlling the flow of a carbureted mixtureto, and the flow of exhaust from, the cylinders of such on es. 1 ecause such valves are frequently quite inaccessible, it is quite diflicult to properly lubricate them, and in most engines no provision whatever is made for their lubrication. Due either to inadequate lubrication or to the lack of any lubrication, the valvestems frequently become hot and so warp or expand that the stems stick in their surrounding sleeves and the valves-fail to operate.

It is the object of the invention to provide for valves of the character explained a simple and inexpensive, but'at the same time efficient means for lubricating them.

The invention is illustrated in the accompanying drawing which shows in combined vertical'elevation and vertical sectional view a valve installed in an internal combustion me. V

alves of the character contemplated herein comprise a spindle 1, to one end of which there is attached a valve '2 adapted to cooperate with a valve seat 3 to control flow.

of either a carbureted mixture from a manifold 4 to the cylinder of the engine, or to control the flow of exhaust from the cylinder to the manifold. The valve construction includes, also, a sleeve 5 within which.

the spindle 1 is mounted for longitudinal reciprocation, the sleeve 5 extending through the wall of the manifold 4 as indicated. For holding the valve structure in its proper position and in such a manner that the struc ture may be readily disassembled and removed from the engine, the sleeve 5 is usually provided with a laterally extending flange 6 adaptedto bear upwardly upon the lower side of a luglor. other member 7 cast integrally or otherwise attached to the engine. At the lower end of the spindle -1 there is afsleeve washer 8 held in its indicated position by means of a pin 9 extending through a slot formed in the spindle. Be-

of construction than that tween thewasher 8 and the flange 6thereis a coil spring 15 adapted to urge the spindle 1 downwardly and hence to hold the valve;

2' against the seat 3 andthe flangeo against the member 7. Such valves are intermittently opened, as by means of a cam 10 attached to a cam shaft 11 and adapted to bear upon the bottom of the spindle 1.

To properly lubricate the spindle 1 so that it may continuously slide freely within the sleeve 5, a lubricator is provided at the end of the sleeve. Such lubricator preferably comprises a casing 12 surrounding the spindle and containing a bod of lubricant-absorbing material 13. the'casing 12 extends upwardly lower end of the sleeve 5 and is provided at its upper end with an outwardly projecting flange 14 adapted to be held between the upper end of the sprin 15 and the lower face of the flange 6. he portion of the casing 12 above the lower end of the sleeve 5 constitutes an oil supply reservoir into which lubricating oil .may be inserted through a suitable opening 16.

In operation the oil from the reservoir in the upper end of the casing 12 is gradually absorbed by the lubricant-absorbing body '13, and is fed upon the spindle 1 as the spindle is intermittently reciprocated by the cam 10. The lubricant thus fed upon the spindle, works upwardly between the spindle and the sleeve 5 and effectively lubricates the adjacent bearing surfaces of these members, with the result that the valve operates freely and continuously. It has been found that with the construction illustratedin the drawing, suiiicient lubricant may be stored in the lubricator to efiectively lubricate the galve for a period of from a week to ten ays.

According to the provisions of the patent statutes, I have described the principle and operation of my invention, together with within the scope of the appended claims the invention may be practised by other forms particularly shown and described herein. 7

I claim as my invention 1. The combination with an internal combustion engine having a cylindrical bearing element, of a valve having a spindle mounted for longitudinal reciprocatory movement in said bearing, a lubrioator casing .sur rounding said spindle and provided with an outwardly turned flange adjacent to the bearing element, a lubricator within and held by said casing at the end of-said bearing element, and a single spring acting be- 7 tween said flange and said spindle to hold the valve closed and the lubricating casing in position. i

2, The combination with an internal combustion engine, of a valve sleeve having an outwardly projecting flange, a valve having a spindle mounted for longitudinal reciprocatory movement in said sleeve, a lubricator between the flange of said lubricator casing and said spindle to hold the valve closed and they lubricator casing in position.

In testimony whereof, I have hereunto set my hand. v

. JAMES R. MOORE- Witnesses: s

PAUL N. CRI'roHLow,

ALICE A. TRILL.

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