US1125725A - Lubricating device for steam-engine valves. - Google Patents

Description

S. ROSENZWBIG.

LUBRIOATING DEVICE FOR STEAM ENGINE VALVES.

APPLICATION FILED AUG. 1, 1914.

1,125,725. r Patented M1119, 1915.

l j C e pnrrnn snares Parana pension.

SIE-GFRI-ED RGSENZWEIG, OF YORK, PENNSY L VANIA.

. LUBRIGATING DEVICE FOR STEAM-ENGINE VALVES.

To all whom it may concern: 7

Be" it .known that I, Srsorarnn RosanzwEIo, a citizen of theGerman Em ire, residing at York, in the county of ork and State of Pennsylvania, have invented a new ance chamber between-said port'a and the valve. There will be one of these valves at each end of the steam cylinder, as usual in s ecification-.01 Letters Patent.-

Patented Jan. 19, 119l5.

source of supply of the lubricant under suit able pressure, connected with and discharging into .the duct or passage e 'in the rear wall 6 of the valve chest, which leads the lubricant into a shallow chamber 6' in the ance chamber to there meet and mingle with the steam. Thus the lubricant which is and useful Improvement inLubricating Deguide D surrounding the valve spindle C.

vices for Steam-Engine Valves, of which the The contacting surfaces of the valve spindle following is a specification. C and the guide D, between the chamber e My improvement has to do more particuand the valve are suitably formed to cause larly with steam valves of the puppet type, the lubricant to pass from the chamber 6 and its object is to effect thorough and efbetween them to the head of the valve, this fective lubrication of the parts as well as to result is attained inthe present instance by supply the requisite quantity of lubricant to means of a spiral peripheral groove 7 in the the entering steam as it passes through the spindle. This groove terminates in a shalsteam chest to the steam cylinder. To this low chamber 9 between the front end of the end the lubricant is fed into the tubular guide and the base or inner end of the head guide in the steam chest which receives and h of the valve; and in the head are formed supports the valvespindle, and is caused to apertures i-in any suitable number, four pass along between the spindle and guide in the present instanceextending through until it reaches the valve,.through apertures it from the chamber 9 to the front of the in the head of which it is discharged and valve, through which apertures the oil. permitted to escape into the steam chest, to which gathers in the chamber 9 after there meet and mingle with the live steam. it has passed between and lubricated the It is this feature which mainly characterizes meeting surfaces of the valve spindle and .my improvement. its guide, will pass into the steam space in 0 In the accompanying drawings, to which the steam chest to there meet and mingle I shall now refer for a better understanding with the entering steam. The head h of the of my improvementFigure 1 is a vertical valve in this instance forms the 'front end axial sectionof so much of a steam chest, of a cylindrical hub H which fits and is valve and engine cylinder as needed for puradapted to slide or reciprocate upon the ex- 35 poses of explanation. Fig. 2 is a like sec.- teriorof the front portion of the guide D, i

' tional view, on enlarged scale, of so much of the hub and rim of the valve being connected the valve, and its supporting guide, as needby spider arms H (Fig. 2) cast in one with ed to fully illustrate the lubricating devices. the hub and rim: v

t A is the steam cylinder; B is the steam In order to lubricate the meeting surfaces chest, cast in one, as usual, with the steam of the guide and hub H, suitable feed decylinder; and C is the steam inlet valve with vices leading from the chamber 9 may be its spindle C supported in a central tubular provided, consisting in the present instance guide D in the steam chest, in which it can of a feed groove k in the periphery of that reciprocate to cause the valve C to move portion of the guide encircled by the hub from or seat itself upon the annular valve H, said groove communicating with the seats I), b, with whiclf'the' steam chest is chamber 9 and leading lubricant therefrom provided. I to and between the meeting faces of the hub The port or entrance into the steam cyland guide, the lubricant, after passing back I inder is indicated at a; and c is the clearbeyond the hub, discharging into the clearsupplied to the'steam chest, first of all lubricates the valve spindle (and hub, when one is used), and it is only after having done l engines of this character. The valve may be operated ,by any suitable. gear, preferably by valve gear such as set forth in my Patent No. 1,059,567 of April 22, 1913.

I come now to those parts of the structure in which my invention is found.

that-work that it enters the steam space 'to there meet and be taken up by the steam. In this way thorough and eiiicient lubrication is effected.

v E is a pipei leading from any. suitable Suitable means are provided for prevent- 11o ing undue escape of the lubricant from the rear of the guide D, there being provided for this purpose in the present instance in the. spindle what is known as labyrinth packing, indicated diagrammatically atZ.

The invention hereinbefore described is applicable to the exhaust valve as well as to a the steam inlet valve, and I desire to be 1. The combination with the steam chest,

the tubular guide therein, and a lubricant or oil feed conduit leading from a force feed source and communicating with the interior of said guide, of the valve; the valve spindle carrying said valve and mounted and movable in, andsupported by, said guide; feed channels between the meeting faces of the guide and valve spindle through which the lubricant supplied to the interior of the guide is caused to pass forward toward the head of the valve; and discharge ducts in the valve head through which the lubricant passing beyond the feed channels between the guide and the valve spindle is ejected into the steam chest to there meet and mingle with the live steam entering said steam chest.

2. The combination with the steam chest,

the tubular guide therein, and a lubricant or oil feed conduit communicating with the interior of said guide, of the valve spindle mounted and movable in, and supported by,

said guide; the valve carried by and mov-.

ing with said spindle, and provided with a tubular hub which encircles and fits around the front portion of the guide and moves with the valve; feed channels between the meeting faces of the guide and valve spindle through which the lubricant supplied to the interior of the guide is caused to pass forward toward the head of the valve; a

chamber in rear of the head into which the lubricant as it passes beyond the meeting faces ofthe guide and the valve spindle is received; discharge ducts in the valve head through which a portion of the lubricant which gathers in said chamber is permitted to escape into the steam chest; and feed channels between the meeting faces of the valve hub and guide, also communicating with said chamber, through which,another portion of the lubricant which gathers in said chamber is carried back between and caused to lubricate thelmeeting faces of the hub and guide, and then, after passing back beyond said hub, to escape into the steam chest.

In testimony whereof I afiiX my signature in presence of two witnesses.

SIEGFRIED ROSENZVVEIG. Witnesses:

H. B. MARsToN, CHAS. S. HYER.

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