US1497626A - Engine - Google Patents

Description

ENGINE Filed July 26. 1923 3 Sheets-Sheet 1 lull 11.0. WllllQ,

A TTORIVEY.

' 1NVENTOR.

' 1,497,626 H. 0. WHITE FNGINE June 10, 1924 Filed July 26. 1923 a Sfiets-Sfieet 2 INVENTOR,

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OIQVEY.

June 10, 192 I 1,497,626

H. 0. WHITE ENGINE INVENTCR. H-O. Whiia,

Patented June 10, 1924,

UNITED STATES PATENT HENRY 0. WHITE, OF ALEXIS ILLINOIS.

Application filed July 26,

To all whom it may concern: I

Be it known that I, HnNRY 0. WHITE, a citizen of the United States, residing at Alexis, in county of Warren and State of Illinois, have invented certain new and useful Improvements in Engines, of which the following is a specification.

This invention relates to steam or other motive fluid driven engines, more particularly to an improved engine cylinder and valve controlling mechanism therefor, and although an engine cylinder and its controlling valve mechanism, in accordance with this invention, is designed primarily for use in connection with steam driven engines of the reciprocatory type, yet it is to be understood that it can be employed in connection with any class of power driven engines for which it is found applicable, and the invention has for its object to provide, in a manner as hereinafter set forth, an engine cylinder and its controlling valve mechanism so constructed and arranged relatively to each other that when employed for driving purposes will obtain increased engine power with a reduction in steam or other motive fluid consumption, as well as reducing the expansion of steam or other motive fluid to a minimum when supplied to the valve mechanism and from and to the engine cylinder, thereby obtaining substantially maximum efficiency of the steam or other motive-fluid when acting on the piston in the engine cylinder. and further including means for eX- pediting the exhaust of the steam or other motive fluid from the engine cylinder there by providing for quick action of the piston in such cylinder when. it is impacted upon by the incoming steam "or other motive fluid which has had its maximum efiicicncy sub-- stantially retained.

Further objects of the invention are to provide a steam engine, in a manner as hereinafter set forth, and which is simple in its construction and arrangement, durable. strong, thoroughly efiicient in its use, readily assembled and disassembled when occasion so requires, and comparatively inexpensive to set up.

With the foregoing and other objects in view, the invention consists of the novel construction, combination and arrangement of parts, as hereinafter more specifically described and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood 1923. Serial No. 653,929.

that changes, variations and modifications; can be resorted to which come witinthe scope of the claims hereunto appended.

In the drawings wherein like reference characters denote corresponding parts. throughout the several views Figure .1 is a top plan view of a steam or other motive fluid driven engine in accordance with this invention.

Figure 2 is a side elevation thereof.

Figure 3 is a longitudinal sectional view on line 33, Figure 4.

Figure 4 is a section on line M, Figure 1.

Figure 5 is va grouped perspective View of the engine cylinder and its controlling valve mechanism.

Referring to the drawings in detail, 1 and 2 denote a pair of supports, and the former is employed forsuppor-ting the engine cylinder to he presently referred to and the latter provides bearings for the crank shaft 3. The support 2 is substantiallyv U-shaped to. provide a clearance for the mgeration .of the crank 4 of the shaft 3. The shaft 3 carries a fly wheel 5 and a transmission pulley 6. Formed integral with the support 2 and extending towards the engine cylinder, which is refer-red to generally by the reference character 7, is a semi-cylindrical.casing 8, having'its free end provided with a circular disk 9 which is secured to one end of the engine cylinder 7 by hold-fast devices 22. Secured within the casing 8 is a pair of oppositely disposed track members 11, 12, which constitute guides for a cross head 13 to which the pitman 14 is pivotally connected and also to which is adjustably connected the piston rod 15. of the piston 16 which operates in the cylinder body 17. The bottom of the casing 8 is cut away, as at 18, to provide a clearance for the operation of the crank 4 and the end 19 of the pitman 14, which is connected to the crank 4:.

The disk 9 forms, ahead for the cylinder body '17 and said disk 9 is provided with a circular offset 20 which extends into the cylinder body 17. The cylinder body is flanged, as at 21, and engaging thereagainst is the disk 9 which is also secured to the flange 21 by hold-fast devices 22. The circular offset 20, as well as the disk 9, is provided with a centrallydismsed opening 23 for the passage of the piston rod 15, and said disk 9 has its outer face; formed with a tubular extension 24 constituting a bearing for the piston rod and which is peripherally threaded for the reception of an apertured cap member 25 through which extends the rod 15. The cap member 25 is employed for maintaining a packing 26 against the tubular extension 24 and around the rod 15.

' That endof the cylinderbody 17 which is opposite the end provided with theflange 21 isforined with a flange 27 against which abuts a disk 28 which constitutes the other head. ofthe cylinder 7, and said disk 28 is i V secured to the flange 27 by hold-fast devices 22. The inner face ofthe disk 28 is formed witha circular ofl'set29 which extends into 7 i the cylinder body 17.

is formed with a bevelled cut-out portion The circular offset 30, and the circular off-set 29 isformed with a' bevelled cut-out portion 31. The circular ofi-sets 20, 29, in connection with the cylinder body 17 form a piston chamber 32. The

1 p0rtion 31 associates with the inlet channel 34, and" thejbevelled'walls of said cut-out portions constitute means for deflecting the iii-coming steam or motive fluid intothe piston 'cha1nber32fatthe ends thereof. The

channel 33,.as'well as the channel 34 is also employed-for 'exhaustlng the steam or motive flu'id'frorn the chamber 32,'and the arrangement is such, that when the steam or motive fluid is supplied through the channel 33 it is exhausting through thechannel 34, and

whensupplied through the channel 34 it is exhausting through the channel 33.

The cylinder body 17 atone side is formed with a rectangular oifset 35 through which extend the channels 33, 34, and these channels project towards each other and extend entirely through the offset 35 at' an inclina tion." The offset 35 is formed with a series of sockets 36,hav1ng threaded walls and which are employed for receiving the threaded'en'ds' 37 of securing bolts 38, and the purpose of the said bolts38 will be presently in superposed relation and the exhaust referred to. V r

That side ofthe cylinderbody 17,1which is formed with the offset 35 is provided at each end with a pairof exhaust ports and the exhaust ports of one pair are indicated at'p39 and the exhaust ports of the other pair are indicated 'at 40. The exhaust ports of: one pair extend towards the exhaust ports of the other p'air at an inclination and entirely through the offset 35. Preferably the exhaust ports of each pair are arranged ports;

of each pair are furthermore positioned inwardly with respect to an inlet channel in a manner so that the discharge ends of said )Ol'iS will be positioned inwardly with re spect to the inlet ends of the channels 33 and 34. The inclination of the ports 39 and 4e is greater than the inclination of the channels 33 and 34.

Positioned against the rectangular ollset is a valve housing 41, in the form of a rectangular frame and with said frame provided with openings 42 which register with the sockets 36. Arranged against the housing 41, is a rectangular plate 43, having its inner face provided with a rectangular extension 44, which is positioned within the housing 41 and is of a thickness whereby it will not completely fill the opening formed by the housing 41. The extension 44 is channeled as at 45 and with the channel extending the entire length of the inner face of the extension, 44. That part of the inner face of the extension 44 which is not channeled. is indicated at 46, 47, aud which provides a valve seat for a reciprocatory valve to be presently referred to. he plate 43 is formed with openings 48 which register with the openings 42 in the housing 41, and through the openings 42, 48, extend the bolts 38 whereby the housing 41 and plate are connected together and are further connected to the rectangular oti"- set of the cylinder body 17. The plate 43 centrally thereof, is formed with an opening 49, having a threaded wall, and with which engages a steam or other motive fluid supply pipe 50. The extension 44 is formed with a conoidal-sluiped pocket 51 which registers with the opening 49. and leading from the pocket 51, is a conducting channel which is of materially less diameter than the opening .49 and which opens into the channel 45, and the latter constitutes what may be termed a steam or motive fluid inlet space.

.r-irranged within the housing 41 is a recip ncatorw valve 53, which is of less length than the opening 54 formed by the frame which constitutes the housing 41. The valve 53 rides against the portions 46, 47 of the extension 44 which constitute the seat for the valve 53, and that face of the valve 53 which is mounted on its seat is continuous throughout and said face is used to confine the supplied steam or motive fluid in the channel 45 in a manner whereby the steam will pass around one end or the other end. of, the valve 53 for the purpose of supplying the steam or other fluid in the channel 45 to the chamber 32 through the channel 33 or through the channel 34. The other face of the valve 53 is positioned against the rectan ular otlset 35 and such face is formed with a pair of pockets 55, 56, which extend lengthwise of such face and With the pocket 51 closing the ports 39 and 40. The pockets 55. 56, constitute What may be termed an exhaust steam or motive fluid receiving space and with the exhaust through a channel 33 or 3st discharging into the pocket 55 and with the exhaust from the ports 39 or from the ports 40 discharging into the pocket 56.

The rectangular offset has an angleshaped ezhaust channel 59, which includes a vertical and a horizontal leg and with the horizontal leg communicating with the pocket centrally thereof. Communicating with the vertical leg of the exhaust channel 59 is an exhaust pipe60 which is secured to and depends from the rectangular offset 35.

The flattened portions 61,62, of that face of the valve53, which is provided With the pockets 55, 56, alternately close the inlet channels 33, 34.

The valve housing ll has'one end provided with an opening through which extends a valve stem 63, which is secured to one end of the valve 53. The valve stem 63 is pivotally connected, as at 64, to an eccentric rod 65 which projects from an eccentric 66 carried by the shaft 3,and such connection provides for the reciprocation of the valve 53 during the operation of the engine to provide for alternate supply and exhaust from the ends of the piston chamber 32. y

The setting up of the narrow channel 45 in the manner as shown and which constitutes an inlet space for the motive fluid reduces the expansion ofthe steam or other motive fluid to a minimum as it is beingsupplied to the piston chamber 32, an'd'under such conditions the pressure of the steam or motive fluid. is maintained substantially normal when it acts upon the piston 16, and owing to the employment of What may be termed six exhaust ports, three at each end of the cylinder 32, two of the three formed by a pair of ports 39 or 40 and the other one of the three provided'by an inlet channel or 34, an exhaust area materially greater than an intake area is provided under such conditions. an unusually quick exhaust is had. which provides for the quick shifting of the piston by the incoming steam or motive fluid and under such conditions it has been found that the power of the engine is materially increased Without an increase in motive fluid consumption, in fact the power of the en ine is increased With a reduction of motive uid consumption.

Although the preferred embodiment of the invention is as described and illustrated, yet it IS to be understood that changes in the details of construction can be had which will fall jwithin the light of the invention as claimed.

hat I claim is z- 1.. In a motive fluid driven engine a piston cylinder provided near each end With a com bined intake and exhaust channel and further provided at each end With a pair of exhaust ports, the outer ends of said channels positioned at a point in closer proximity to the ends of the cylinder than the outer ends of said ports, a reciprocatory valve for controlling supply and exhaust through said channels and exhaust through said ports, said valve having one face provided with flattened portions for alternately closing the ports and channel at one end of thecylinder With respect to the ports and channel at the other end of the cylinder, that face of said valve having the flattened portions being further provided with a pair of pocketsof unequal length, the pocket of greater length opening said channels to exhaust and the pocket of less length opening said ports to exhaust.

2'. In a motive fluid driven enginea piston cylinder provided near each end with a combined intake and exhaust channel and further provided at each'end with a :pair ofexhaust ports, the outer ends of said channels positioned at a point in closer proximity-to the ends'of the cylinder than the outer ends of said ports, said channel and ports atone end of the cylinder inclining towards the channel and ports in the other end of the cylinder, a reciprocatory valve for controlling supply and exhaust through said channels and exhaust through said ports, said valve having one face provided with flattened portions for alternately closing the ports and channel at oneend ofthecylinder With respect to the ports "and channel at the other end of the cylinder, that face of said valve having theflattenedportionsbeing further provided With a pair of pockets of unequal length, the pocket of greater length opening said channels to exhaustand the pocket of less length opening said ports to exhaust.

3. In a motive fluid driven engine a piston cylinder provided near each "end With a combined intake and exhaust channel and further provided at each end With a pair of exhaust ports, the outer ends of said channels positioned at a point in closer proxiid ity to the ends of the cylinder than the outer ends of said ports, said channel and ports at one end of the cylinder inclining towards the channel and ports in the other end of the cylinder, the inclination of said ports being greater than the inclination of said channels, areci rocat-ory valve for controlling supply an exhaust through said channels and exhaust through said'ports,

said valve having one face provided with flattened portions for alternately closing the ports and channel at one end of the cylinder with respect to the ports and channel at the other end of the cylinder, that face of said valve having the flattened portions being further provided with a pair of pockets of unequal length, the pocket of greater length opening said channels to exhaust and the pocket of less length opening said ports to exhaust.

' 4'. In a motive fluid driven engine a piston cylinder provided near each end with a combined intake and exhaust channel and furtherprovided at each end with apair of exhaust ports, the outer ends of said channels positioned at a'point in closer proximityto' the ends of the cylinder than the outer ends of said ports, a reciprocatory valve for controlling'supply and exhaust through said channels and exhaust through said ports,

said valve having one face provided with flattened portionsifor alternately closing the ports and channelat one end of the cylin-.

(161' with respect tothe ports and channel at the other end of the cylinder, that face of said valveihav'ing the flattened portions being further provided with a'pair of pockets of unequal length, the pocket of eater length. opening said channels to exhaust and the pocket of'less length opening said ports to exhaust, a valve housing secured to said cylinder andinclosing said valve. said valve of less length than the length ot-sthe housing, and a plate closingthe outer side of said housing and provided with an exten sion constituting a seat fors'aid valve, said extension formed with a lengthwise extending shallow channel constituting a motive fluid inlet space, said extension being of greater length than the length otsaid valve.

"5. Ina motive fluid driven enginea pistoncylinder provided near each end with a combined intake and exhaust channel and further provided at each end with a pair of exhaust ports, the outer endsofsaid channels positioned at a'point in closer proximity to 'the' ends of; the cylinder than the outer ends of said ports, said channel and ports at "one endof the cylinder inclining towards the channel and ports in the other end'of thecylinder, a reciprocatory valve for j controlling supply and exhaust through said channels and exhaust through said ports, said valve having one face provided with flattened portions for alternately closing' the ports and channel atone end of the cylinder with respect to the ports and channel at the other end of the cylinder, that face of said valve having the flattened portions being further provided with a pair length of the housing, and a plate closing the outer side of said housing and provided with an extension constituting a seat for said valve. said extension formed with a lengthwise extending shallow channel constituting a motive fluid inlet space, said extension being of greater length than the length of said valve.

6. In a motive fluid driven engine a piston cylinder provided near each end with a combined intake and exhaust channel and further provided at each end with a pair of exhaust ports, the outer ends of said channels positioned at a point in closer proximity to the ends of the cylinder than the outer ends of said ports, said channel and ports at one end of the cylinder inclining towards'the channel and ports in the other end of the cylinder, the inclination of. said ports being greater than the inclination of said channels, a reciprocatory valve for controlling supply and exhaust through said channels and exhaust through said ports, said valve having one face provided with flattened portions foralternately closing the ports and channel at one end of the cylinder with respect to the ports and channel at the other end of the cylinder. that face of said valve having the flattened portions being further provided with a pair of pockets of unequal length, the pocket of greater length opening said channels to exhaust and the pocket of less length opening said ports to exhaust, a valve housing secured to said cylinder and inclosing said valve, said valve of less length than the length of the housing, and a plate (losing the outer side of said housing and provided with an extension constituting a seat for HENRY O. VVHTTE.

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