US1375140A - Internal-combustion engine - Google Patents

Description

I w. H. FASEY. INTERNAL COMBUSTION ENGINE.

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INTERNAL APPLICATIO COMBUSTION ENGINE.

N FILED ocT.14, |918.

Patented Apr. 19, 1921.

f6 SHEETS-SHEET 2.

W. R. FASEY.

INTERNAL COMBUSTION ENGIN. APPLICATION FILED ocT.14. 1918.

Patented Apr. 19, 1921 6 SHEETS-SHEET 3.

W. R. FASEY.

INTERNAL COMBUSTION ENGINE.l APPLyATIoN FILED ocT.14. 191e.

1,375,140. Y Y l 6 SHEETS-SHEET 4.

i Patented Apr. 19, 1921.

9" WI M W. R. FASEY..

A l INTERNAL COMBUSTIN ENGINE.

APPLICATION FILED OCT. T4, 1.91.8.

- Ptented Apr; 19,1921.

6 SHEETS-'SHEET 5.

W. R. FASEY.

INTERNAL COMBUSTON ENGINE.

APPLICATION FILED OCT. I4, 1918.

' Patented Apr. 19, 1921.

SHEETS-SHEET e.

UNITED s'mfrlf3sv PATENT OFFICE.

WILLIAM 'Rosina FAsEY', or sNAnEsBRooK, ENGLAND.

INTERNAL-coMBUsrIoN ENGINE.

Specification ofLetters Patent... Patented Apr, v19, 1921-,

Application mea october 14, 191s. serial No. 258,'050.

To all whom t may concern:

Be it known that I, WILLIAM ltoBERTv F AsEY, a subject of the King'of Great Britain, and a resident of Snaresbrook, Essex, England, have invented certainnew and useful Improvements in Internal-Combustion Engines, of whichv the following is a specification. l

This invention relates to internal combustion enginesof that general character where reciprocation of the pistons is converted into rotary motion of the shaft by the copera tion of rollers carried by the pistons with a rib formed upon the periphery of a rotor.

In order to insure the satisfactory working of engines of this type there are certain conditions which must be observed. In particular it is essential that the rollers are adjusted accurately upon the cam rib and that the thrust of the. rollers is in a ldirect line with the axis of the piston and'cylinders and further the movement of the rollers upon the cam rib must approximate as nearly as possible a true rolling motion and the present invention consists of a particular construction and arrangement 'of engine of this type in which these desiderata are accomplished. The invention further comprises an improved arrangement of valves and operating mechanism therefor and certain improvements in the cylinder and piston construction.

In the accompanying drawin s I have illustrated an engine constructed 1n accordance with and embodying the essential features of the invention, Figure 1 being an elevational view partly in section.

Fig. 2 an end elevational view of Fig. 1.

'Fig 8 is an enlarged end view illustrating the valve actuating mechanism.

Fig. 4 is a planview of Fig. 3 parts being broken away for the sake of clearness.

Fig. 5 is a longitudinal section through one cylinder on the line A-A of Fig. 1.

Fig. 6 is a similar view of the cylinder. end lie sezction being taken `on the line B-B of Fig. 7 is an enlarged end section, the section being taken substantially on the line C-C of Figs. 5 and 6. 4

kFigs. 8 and 9 are detail views of the inlet and exhaust valve operating cams respectively, and I F ig.- 10 is a detail view of a modified method of taking up the thrust of the rollers.

Referring to these drawings the numeral of one piston operating upon one face of the rib land the roller on the other piston working on the other face.

In the drawings one cylinder 5 and piston 6 and its associated valve mechanism is shown but it will be understood that all the cylinders and pistons are identical and the one end of the engine similar to the other it being one of the advantages of the engine that it is substantially symmetrical.

As will be seen upon reference to Fig. 2

the particular example illustrated has twelve cylinders-six at each end-and these cylinders 5l are formed ofcastings which for the sake of lightness are made of aluminum lined internally with steel liners 7. The pistons 6 are of hollow form and each pair of pistons consists of a single casting with Aa piston member at each end and the interior of the istons may be provided with radiation rigs 8 which serve to strengthen the structure. The tubular form. of the pistons is important because it provides long skirts 9 which are essential. The pistons are each provided with transverse bearing tubes 10 for the support of the gudgeon pins upon 4which the'rollers 4 run and the arrangement of finite adjustment relative to the cam rib,

and this is not only important from then point of View of adjustment for wear but is also important from the point of View of inl- 'tial adjustment since itis almostv impossible `to manufacture the parts so accurately that `an absolutely true running-fit is insured j upon assembly.

In order to accomplish this" I ,providevv what amounts to amicrometer adjustment. The bearing tubes 10 are screw threaded and a udgeon pin v1l screws into these bearing tues 10 or into bushes secured in their ends. The conical rollers 4 proper are supported upon each side by thrust bearings d 12 and 13 carried upon the gudgeon pins 11 ployel as shown in and it will be seen that by screwing the gudgeon pins a bodily movement of the' roller 4 relative to the rib 3 is effected so that its periphery can be adjusted to a nicety upon the rib. The thrust bearings shown in the drawings are ball thrust bearings but in some cases a hydraulic bearing formed by a film of oil under ressure may be emig. 10 where-liquid under -pressure preferably lubricating oil is supplied tothe interior of the gudgeon pins through the passage 11a and led to the surfaces tending to abut through the passage 12a. It will be understood that the hollow gudgeon pins will be closed for instance by the plugs 13a and 14a. The disposition of the rollers 4 is such that the thrust of thepistons transmitted through the rollers to the ribtakes place in a direct line with the axis of the piston 6.

Another point of great importance in engines of the type to which my invention belongs is the proper actuation and timing of the valve. l

The cylinder end is provided'w'ith one or more inlet ports 14 and one or more ex-4 haust ports 15. In the present example two of each are shown.' The valves 16 and 17 controlling these ports are of mushroom type and slide through suitably supported bearings -18 and 19. They are normally biased to closed position by springs 2O and 21 and the end of each valve stem co-acts .witha roller, 24 carried bythe bell cranks 23'and 25. In order to enable the duplicate .valves to be operated in unison the bell cranks each have two arms at one en d but each' have only One arm 26 and 27 respectively connected at 28 and 29 respectively 'to their actuating rodsv30 and 31 respectively. In order to enable both bell cranks 35 and 36 and'their rods 37 and 38 which slide in guides 39 and 40 are provided with rollers 41 and 42 which coperate with cams or tappets 43 and 44 respectively which ro' itate with the engine shaft and actuate the valves of `all. thecylinders successively andin proper sequence.

The inlet chamber 45 to which the induction pipe 46 connects and the exhaust chamber 47 to which the exhaust pipes48 (see Fig. 2) connectare both annular yand are centrally of the cylinders and having a cam in position while another series of bolts 55 also serve to form means lfor securing the brackets 32 of the valve actuating mechanism. The exhaust chambers 47 are formed by sheet metal outer casings 56 v secured to rings 57 and58 and similarly a sheet metal outer jacket surrounds the cylinder and forms an annular'chamber` 59. The induction pipes 46 connect up to the annular induction chambers 45 which are closed by the end castings 61. The necessary magnetos, lubricating pumps and the like accessories will of course be provided and driven in any suitable manner from 4the shaft 1.

What I claim and desire to secure by Letters Patent is 1. An improved internal combustion engine having a plurality of cylinders arranged annularly, hollow pistons operating in the cylinders, adjustable rollers carried by the piston, a rotor having a shaft mounted rib with which the rollers coperate, the rollers having axes at obtuse angles to the axis of the rotor and so disposed that the thrust' of the rollers upon the cam rib is substantially in line with the axes of the cylinders, inlet and exhaust valves in the cylinder ends and cams common to and centrally of all said valves, said cams being mounted u on the rotor shaft, substantially as Specified).

2. 'In an internal combustion engine, the combination of a rotor having a cam rib, a cylinder, a' hollow piston `in the cylinder, a gudgeon pin extending across the piston and having its ends mounted in the wall of 110i the piston, a roller mounted for rotation on said gudgeon pin and coacting with said cam rib to rotate the rotor, said roller being mounted with the axis thereof at an angle to the driving face of the cam rib, and .means for adjusting the axial position of 4said roller to cause the peripheral surface thereof to be adjustedirelatively to the cooperatlng surface of the cam rib.

In vtestimony whereof I affix my signature.

vWILLIAM ROBERT FAsEY.

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