US1237084A - Oiling system for motors. - Google Patents

Description

G. NUS;

OILING SYSTEM FOR MOTORS.

APPLICATION FILED MAR. 16, 1911.

Patented Aug. 14, 1917.

3 SHEETSSHEET I.

INVENTOR glen Wu/5 m m a 5 ATTORNEY G. NUS.

(HUNG SYSTEM FOR MOTORS.

APPLICATION FILED MAR-16, I917.

Patented Aug. 14, 1917.

3 SHEETS-SHEET 2.

INVENTOR ATTORNEY glfTNgEgSSES %2% G. mus. OIUNG SYSTEM FOR MOTORS.

APPLICATION FILED MAR-161 I917.

Patented Aug. 14, 1917.

3 SHEETSSHEET 3.

INVENTOR Wu 3 .QZen

ATTORNEY @TATESAE GLEN NUS, OF ARLINGTON, IOWA.

OILING SYSTEM FOR MOTORS.

motors and is particularly adapted for use in internal combustion motors having an overhead cam shaft and operating valves, though not limited to that use alone.

My invention has for its objects; first, to provide an eflicient oiling system for a motor, second, to provide an oiling system which. is adapted to oil the cam shaft of a motor in a veryefficient manner, thirdly, to

provide an oiling system of a compact form whereby a minimum number of pipes or oil leads are required.

A further object of my invention is to provide an oiling system on internal combustion engines whereby the consumption of oil is-reduced to a minimum.

With the above and other'objects in view, my invention consists in the novel construction and arrangement of parts hereinafter fully described and particularly pointed out in the claims, reference being had to the accompanying drawings forming a part of this specification, in which Figure 1 is a partially sectional. side elevation of an internal combustion motor embodying my invention,

Fig. 2 is a partially sectional front elevation of the same,

Fig. 3 is a sectional front elevation of the same,

Fig. 1 is a top plan view of a portion of the mechanism illustrated in Fig. 1.

Fig. 5 is an enlarged sectional view in front elevation of-the cylinder head showing in detail the valve construction.

Fig. 6 is a similar view taken at another point showing in detail the structure of the cylinder head.

Fig. 7 is an enlarged horizontal sectional view of one of the circulating pumps of the oiling system.

Like characters of reference indicate like parts in the various views.

Referring to the drawings, A designates generally the crank case of an internal combustion motor, B' the cylinder block, G the removable head which is shown as common to all the cylinders, being preferably cast in Specification of Letters Patent. Patentgd Aug, 14 1917 Application filed March 16, 1917. Serial No. 155,317. I

8. Valves 9 and 10 engage said seats and.

constitute therewith intake and outlet ports which communicate with intake and outlet manifolds 11 and 12. A carbureter 13 is in communication with the intake manifold 11. A spark plug 14 communicates with said cavity 6, said plug being screw threaded in a hole in the cylinder wall. The cylinders are all water jacketed as shown at 15.

Extending longitudinally of the head 0 which is fastened to the block of cylinders by bolts 16, as shown in Fig. 4, is a combined oil trough and rocker arm support '17, the same being shown in section in Fig. 2. A water space 18 is formed at its underside and is placed in circulation with the water jacket 15. The oil trough of the said combined oil trough and support is designated at 19 in the drawings and extends practically throughout the entire length of the head C. The side walls of the oil trough 19, designated at 20 in the drawings, are formed with pairs of supports 21 to receive rocker arms 22, said arms being mounted on pivots 23 between each pair of supports.

A cam shaft 24. extending lengthwise of the cylinder head and block is located directly above trough 19. The cam shaft 24: has cams 25 formed thereon, one of said cams being used to cooperate with the oppositely located rocker arms 22, each' cam being of such formation that it alternatelycooperates with said rocker arms to open and close the intake and outlet valves, one after the other at the proper intervals as in all four-cycle internal combustion motors.

Rocker arms 22 are provided at its inner end with an anti-friction roller .26 which bears against the respective cam 25, and each of said rocker arms is provided at its outer end on the lower side thereof with an adjusted tappet screw 27 screw threaded therein which is held affixed at any adjustment by means of a lock nut 29. The valves 9 and 10 are set at an angle as shown in faces 33 which lie in the horizontal plane of the axis of cam shaft 24.. Transverse grooves 34 are formed in enlargements 35 of 'webs 32 constituting the lower half of the bearings of cam shafts 24. Straps 36 form the upper halves of said bearing and are secured to said webs by screws 37. The front end of trough 19 is formed in the same way to provide a bearing for said cam shaft adjacent the front end thereof for purposes hereinafter described. A small hole 38 is formed in each web near the bottom thereof to allow oil to-flow through the various compartments of trough 19 formed by webs 32, said holes being comparatively small to prevent oil in the trough from suddenly running from one end to said trough and overflowing the same when the motor is tipped as when negotiating a grade with an automobile.

The head C extends in front of the block B and has an extension bracket bolt thereon. Mounted on said bracket 39 is a bracket 40 which is secured thereto by bolts 41. A verticaL counter-shaft 42 extends through a loosely fitting hole 43. in said bracket and its upper end is journaled in the bracket 40. A beveled gear 44 is mounted on said shaft 42 and meshes with a fan gear 45 mounted on a fan shaft 46 which is journaled in said jacket 40 and which has a fan 47 mounted on its outer end. Another beveled gear 48 is mounted on said shaft 42 and meshes with a beveled gear 49 mounted on the adjacent end of cam shaft 24. Ball thrusts 50 are placed above and below said beveled gears 44 and 48, the lower ball thrusts contacting a surface of bracket 40 and the under surface of beveled gear 44 thus preventing downward movement of the shaft 42. A yoke 51 is secured to ears formed on bracket 40 and extends over the beveled gears 44 and 48. The upper end of shaft 42 engages a bearing 53 in said yoke, and the upper ball thrusts contacts the upper surface of beveled gear 48 and a surface formed on the yoke thereby preventing upward movement of the shaft 42.

The head C is provided with an upwardly extending flange 54 which extends around the upper edge of the same except in front where flanges 54 formed on bracket 39 have described mechanism.

tirely inclosed thereby. Bolts 56 engage holes in said casing and are screw threaded in the head 0 and serve to hold said casing in proper engagement with said flanges.

The shaft 42 extends downwardly and has its bottom end journaledin a bracket 57 mounted on the crank case A. A beveled gear 58 is mounted on the lower end of said I shaft 42 and meshes with a beveled gear 59 mounted on the crank shaft. Another gear 60 is mounted on the crank shaft and drives a gear train 61 of usual construction by which the various accessories of the motor are driven. Said gear train is inclosed in a casing formed in the crank case in the usual way. The bracket 57 is of such formation that it entirely closes beveled gear 58 and 59 and the gear 60 and a portion of shaft 42 above its lower journal. The cam shaft 24 is driven from the crank shaft by the above A boss 62 is formed on the under side of bracket 39 encircling shaft 42 and having a circular longitudinal shoulder 63 formed thereon. A tube 64 incloses said shaft 42 and engages said shoulder with its upper end and a similar upwardly extending shoulder 65 of bracket 57 with its lower end. Thus all the cam shaft driving members are entirely inclosed.

The casing 56 is provided with a pair of longitudinal downwardly extending webs 66 arranged on either side of the cam shaft and within the sides of the trough 19. Said webs extend the entire length. of the cam operat-' ing mechanism and have transverse members 66 formed at H1611 ends. The lower edge of the webs 6 lies in the plane of the upper surface of the webs 32 and is formed to fit closely over the rocker arms 22. The transverse portions 66 are notched to allow the cam shaft 24 to pass therethrough. Between each pair of webs 32 a splasher trough 68 is formed in such relation with cams 25 that said cams will dip into said troughs during their rotation and pass through oil contained therein and splash the same about in the inclosure formed by webs 66 and 32 thereby oiling the adjacent working parts of the valve mechanism.

The casing 56 is provided with an oil pipe 69 which extends longitudinally thereof and passes through holes in bosses 69 formed on the casing 56 and is supported therein. A hole 70 is provided in the pipe 69 directly over each cam 25. The front end of said 84 having a removable cap 85 screw thread:

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pipe. extends forward over the driving .mechanism oi? the cam shaft and has a hole 71 therein directly over said cam shaft driv- A crank case A is formed of two castings 76 and 77, the castings 76 comprising of upper sides and end ofthe crank and has the crank shaft journaled therein. The

casting 77 has a bottom 78 therein and has an oil.reservoir 7 9 formed below said bottom 78. Webs 80 provide the bottom of the-crank case into troughs 81, there being one trough for each crank. A hole 82 is located in each trough 81 and communicates with the oil reservoir and maintains the oil in said troughs at a standing level by draining the surplus oil therefrom into the reser voir. Spoons 83 are formed on the connect-- ing rod ends and take oil from the troughs 81 and oil the crank case thereby in the usual manner. The crank case is also oiled by the cranks splashing the oil about in the crank case during their rotation. The oil reservoir 79 is provided with al filler pipe ed in its upper end. A float 86: is provided havinga stem 87 which is pivoted for vertical movement upon a bracket 88 which is mounted upon a web on the upper casing '76 and extends downwardly through an opening between two of thewebs 80 into the oil reservoir 79. An extension 89 is formedonbracket 88 having stops 90 thereon to limit the movement of the float 86. A rod 91 is pivotally mounted on the stem 87 and extends upwardly through an incasing tube 92, said tube passing through .a holein the casting 76 and having its upper end aflixed to a bracket 93 which is mounted on a bracket 94 secured to the cylinder block. A dial 95 is formed on said bracket and a pointer 96 is pivotally mounted on said bracket in working relation to said dial. The axle stem 97 of said, pointer extends through journals of the bracket and has a lever 98 aiiixed to its other end., The upper end of rod 91 is-pivotally mounted on the outer end of said lever and the .fioat moves the pointer'thereby in accordance with the level of the oil in the reservoir. v

A longitudinal oil pipe 99 is secured to the far wall of the upper crank casings 76. Holes 100 are provided therein directly above each trough 81. An oil pipe 101 connnunicates with said pipe 99 and extends in an enlarged inclosure 103 of bracket 57.

A short pipe 75 leads from thebot In working relation with said cams are the pumps 104 and 105, which are identical in structure and comprise cylinders secured to the walls of the enlarged inclosure 103, pistons 110 mounted therein and'having stems 111 secured thereto and extending through guide holes said walls of the inclosure 103 and engaging-respective cams 102, springs 112 disposed between-the ends of the cylinders and respective pistons to keep said stems in engagement with said cams, and check valves 113 disposed in respective intakes and outlets of the pumps and coiiperating with the. respective. pistons to circulate oil through the pumps. See Fig.7. A supply pipe 106 leads into the reservoir 79 and has an oil filter 107 attached to its inner end to exclude dirt and foreign particles from the system. The outer end of said supply'pipe communicates with the intake of pumps 104 and 105. The outer end, of oil .pipe 101. communicates with the outlet of supply pipe 106 through the pumps 104 and 105.. The oil which passes through pump 104 passes into oil pipe 101 and from thence into pipe '99 and through holes into the troughs 81, and the said troughs are supplied with oil thereby/ The surplus oil flows through. hole--82 back into the reservoir. "The oil' 'which passes through pump passesinto pipe 72.and thence into pipe 69 and through holes 70 and 71, thus filling the troughs 66 and oiling the cam shaft driving gearing. The cams 25 dip into their respective splashing troughs and the valve operating mechanism is oiled thereby. Webs 32 and 66 prevent the cams from splashing oil sidewise and thereby prevent the oil from being deposited upon the valve stems and spring hereinbefore describedig and thus prevent an excess carbon deposit thereon which would result from the oil contacting these parts in their usual heated condition. The surplus oil runs from the splasher troughs into trough 19 and through pipe 75 into recess 74 and-from there it runs through pipe 73 into the rear crank case trough 81 from whence it flows back into the reservoir 79 with the surplus oil from said. trough through the hole 82. The

oil which flows through hole 71, drops-upon the upper driving gear and passes down through the hole 43 into the pumping inclosure of bracket 57. From there it passes through the lower bearing of shaft 42 which is provided with lengthwise grooves 108 to allow theoil to flow therethrough readily into the gear inclosure of said bracket 57 The oil passing through said gear inclosure of bracket 57 oils the gears therein, which is the gear train hereinbefore referred to. A hole 109 is provided in the casting 7 6 through which the oil passes from said gear inclosure of bracket 57 into the front trough 81 of the crank case from whence it is returned to reservoir 7 9 with the surplus oil therefrom pipe leading from said pump and communicating with: said, splasher troughs, and

,means for draining oil from said trough into said oil reservoir; I

2. In a motor, an oil trough, a cam shaft provided with cams and mounted above said oil trough, splasher troughs mounted on said oil trough in operable relation with said cams, an oil reservoir, a pump, a pipe leading from said oili reservoir to said pump, a

pipe leadingfrom said pump and communieating with said splasher troughs, a crank case having crank splasher troughs therein,

a drain plpe leading from said first mentioned oil trough into said crank splasher troughs, and acommunication between said crank splasher troughs and said oil reservoir.

.3. Ina. motor, an oil trough, a cam shaft provided with cams and mounted above said oil trough, splasher troughs mounted on said oil trough in operablerelation with said cams, an oil reservoir, a pump, a pipe leading from said oil reservoir to said pump, a pipe leading from said pump and communicating with said splasher troughs, a crank case having crank splasher troughs therein,

independent 'means for supplying said crank splasher troughs with oil, a drain'pipe leading from said first mentioned oil trough into said crankspiasher troughs, and a communication between said crank splasher troughs and said oil reservoir.

4. In a motor, a combined support and oil trough, transverse webs formed in said oil trough, a cam shaft provided with cams and mounted on said webs, splasher troughs mounted on said transverse webs and in operable relation with said cams, and means for maintaining oil' in said splasher troughs.

5. In a motor, a combined support and oil trough, transverse webs formed in said oil trough dividing said oil troughs into a plurality of compartments, a cam shaft provided with cams and mounted on said webs, splasher troughs mounted on said transverse webs and in operable relation with said cams, a restricted communication between the compartments of the oil trough, means for maintaining oil in said splasher troughs, and means for draining said oil trough.

6. Ina motor, a combined support and oil trough, transverse webs formed in said oil trough dividing said oil trough into a plurality of compartments, a cam shaft provided with cams and mounted on said webs,

splasher troughs mounted on said transverse webs and In operable relation wlth sald cams, a restricted commumcation between the compartments in the oil trough, a casing inclosing the above mentioned parts, means for malntrainlng 011 1n said splasher troughs,

and means for draining oil from said Olli splasher troughs mounted on said transverse webs and in operable relation with said cams, a restricted communication between the compartments of the oil trough, a casing inclosing the above mentioned parts, an oil reservoir, a pump,'a pipe leading from said oil reservoir to said pump, a pipe leading from said pump' and communicating with said splasher troughs, a crankcase having crank splasher troughs therein, a drain pipe communicating with said oil trough and said casing and leading into said crank case, and a communication between said crank case troughs and said oil reservoir.

8. In a motor, a combined support and oil trough, transverse webs formed in said oil trough dividing said oil trough into a plurality of compartments, a cam shaft provided with cams and mounted on said webs,

splasher troughs mounted on said transverse webs and in operable relation with said cams, a restricted communication between the compartments of the oil troughs, a casing inclosing the above mentioned parts, an oil reservoir, a pump, a pipe leading from said oil reservoir to said pump, a pipe leading from said pump and communicating with said splasher troughs, a crank case having crank splasher troughs therein, a drain pipe communicating with said oil trough and said casing and leading into said crank casing, a communication between said crank splasher troughs and said oil reservoir, and independent means for maintaining oil in said crank splasher troughs.

9. In a motor, an oil trough, a cam shaft provided. with cams and mounted above said oil trough, splasher troughs mounted on said oil trough and in operable relation with said cams, a casing inclosing the above men tioned parts, a pair of longitudinal webs formed on said casing and extending downwardly therefrom on either side of said cam shaft, and means for maintaining oil in said splasher troughs.

10. In a motor, a combined support and oil trough, transverse webs formed in said oil trough, a cam shaft provided with ca and mounted on said webs, splasher troughsmounted on said webs and in operable relation with said earns, a casing inclosing the above mentioned parts, downwardly extending transverse webs 1n saldcaslng positloned directly above said first mentioned transverse webs, and means for-mamtalnmg 011 tion with said cams, a casing inclosing the above mentioned parts, a pair of down- .w-ardly extending longitudinal webs formed on said casing and positioned on either side of said cam shaft, means for mamtammg 011 1 in said splasher trough, and means for draining said oil trough and easing. 12. In a motor, a combined support and oil trough, transverse webs formed in said oil trough, a cam shaft provided with cams 1 and mounted on said webs, splasher troughs mounted on said transverse webs and in operable relation with said cams, a casing inclosing the above mentioned parts, downwardly extending. .transverse webs mounted .upon said casing directly over said first mentioned webs, an oil reservoir, a pump, a

pipe leading from said oil reservoir to said pump, a pipe leading from said pump and communicating with said splasher troughs, crank splasher troughs, a pipe communicab ing with said oil trough and said casing and leading v into said cranksplasher troughs, and a communication between said splasher troughsvand said oil reservoir.

13. In a n1otor, a combined support and oil trough, transverse webs formed in said oil trough, a cam shaft provided with cams and mounted on said webs, splasher troughs mounted on said transverse webs and in operable relation with said cams, a casing inclosing the above mentioned parts, a pair of longitudinal webs mounted upon said casing and positioned on either side of said.

cam shaft, an oil reservoir, a pump, a pipe leading from said oil reservoir to said pump, a pipe leading from said pump and c mmunicating with said splasher trou hs, crank splasher troughs, a pipe communicating with said oil trough and said casing and leading into said crank splasher troughs, a communication between said splasher troughs and said oil reservoir, and

independent means for maintaining .oil in said crank splasher troughs.

In testimony whereof I aflix my signature.

GLEN NUS.

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