US1455986A - Hydrocarbon motor - Google Patents

Description

May 22, 1923. 1,455,986

W. E. BLAINE HYD-ROCARBON MOTOR Filed Aug. 8

1917 2 Sheets-Sheet 1 I INVENTOR walier ifilame m 65 E i I ATTORNEYZ;

May 22, 1923. 1,455,986

W. E. BLAINE HYDROCARBON MOTOR Filed Aug. 8, 917

2 Sheets-Sheet 2 ATTORNEY Patented May 22, 1923.

UNITED STATES PATENT OFFICE.

WALTER E. BLAINE, OF DETROIT, MICHIGAN, ASSIGNOR TO PACKARD MOTOR CAR COMPANY, OF DETROIT, MICHIGAN, CORPORATION OF MICHIGAN.

HYDROCARBON MOTOR.

Application filed August 8, 1917. Serial No. 185,141.

To all whom it may concern:

Be it known that I, WALTER E. BLAINE, a citizen of the United States, and resident of Detroit, Wayne County, State of Michigan, have invented certain new and useful Improvements in Hydrocarbon Motors, of which the following is a specification.

This invention relates to hydrocarbon m0- tors and more particularly to a motor control mechanism. In hydrocarbon motors as used on commercial vehicles it is common practice to provide the motor with a governor connected to control a throttle valve so that the amount of mixture supplied to the engine may be automatically regulated inversely to the speed of the engine, thereby making it impossible for the vehicle operator to exceed a certain predetermined speed. In devices of this kind as heretofore constructed the governor has been connected to the valve more or less indirectly through several levers, links and rods. Such construct-ions take up considerable space, are expensive to build and because of the numerous bearings soon develop lost motion which makes the apparatus unreliable.

The objects of this invention are to provide. a construction which will not be subject to the above mentioned defects; to provide a simple and compact governor and to construct and arrange the governor so that the minimum number of parts are used in connecting it to the valve. Other objects and features of. the invention will be apparent from the description taken in connection with the drawings, in which Fig. 1 is a side elevation of the forward portion of a hydrocarbon motor having the invention embodied therein;

Fig. 2 is a front elevation of the parts shown in Fig. 1;

Fig. Sis a sectional view in plan taken substantially on the line 33 of Fig. 1;

Fig. 4 is a sectional detail view taken substantially on the line H of Fig. 3 and looking in the direction indicated by the arrows, and

Fig. 5 is a detailsectional view similar to Fig. 4 and showing the throttle valve in closed position.

Referring to the drawings, the carbureter 10 is connected to the engine cylinders 11 by means of the intake manifold 12, the stem 13 of which has a valve 14 rotatively mountof the engine.

ed therein to control the flow of gas therethrough. At the front of .the engine is a casing 15 for a plurality of gears which drive the various parts of the engine; At substantially the same elevation as the throttle valve 14 this casing on its rearward side is formed with a housing 16 in which is rotatively mounted a centrifugally actuated member for controlling the throttle valve. Referring to Fig. 3, a hollow element or sleeve 17 is rotatively mounted within the housing 16, being supported at its forward end by the bearing 18 in the casing 15 and at its rearward end by the bearing 19 in the reafwall of the housing 16. At its forward end this element 17 carries to rotate therewith a. gear 20 which is driven from a gear 21 connected with the crank shaft of the engine. Thus the angular velocity of the element 17 varies directly with the speed Pivoted to the sleeve 17 as at 22 is ring weight 23 which surrounds the said sleeve and is adapted to be swung about I an axis transverse to the axis of the sleeve by the centrifugal force developed by the rotation of the sleeve. Mounted within the bore of the element 17 is a slidable block 24 which is connectedto the weight 23 by means of a link 25. As shown in Fig. 3,

the weight 23 is in the position which corresponds to a low speed. As the rotation of the element 17 is increased the weight 23 will swing about the pivot 22 and approach a posit-ion transverse to the axis of the element 17. This swinging movement of the weight 23 will be communicated by means of the link 25 to the block 24 causing it to slide to the right as viewedv in Fig. 3. The means for utilizing this motion for closing the valve will now be described.

Threaded into the rear wall of the housing 16 is a tube 26 which extends rearwardly toward the stem 13 of the intake manifold and the opposite end thereof has an enlarged tubular member 27 threadedithereon. This tubular member is formed with a boss 28 I00 on one side thereof which aligns and abuts a boss 29 formed on the stem 13 of the intake manifold. The boss 29 is formed with a bore 30 for the stem 31. of the valve. This stem 31 has an arm or crank 22 which carries a 1 pin 33, the arm and pin being arranged within the boss 28. Joined to the arm 32 and making an angle of substantially 90 therewith is a lug 34 which is adapted to strike against the adjustable abutment to thereby limit the extent to which the valve may be closed. Slidably and nonrotatively mounted in the bearings '36 and 37 of the tube 26 is a rod 38, one end of which engages the block 24 and the other end of which has threaded thereon the grooved collar 39 which is adapted to be held in position on the rod by the lock nut 40. The pin 33 on the arm 32 of the valve is positioned in the groove of the collar 39 so that longitudinal mo ement of the rod 38 causes rotation of the arm 32 and the valve 14. In order to oppose the outward swinging movement of the weight 23 a spring 41 is arranged in a cap 42 threaded to the member 27 so that the spring acts against the lock nut 40. As shown in the drawings the construction and arrangement of parts is such that the governor and its connections to the throttle valve are disposed between the valve and the engine cyl inders, and under the intake manifold 12. Thus the parts of the governor are not liable to be injured by being struck with tools or other objects. Furthermore, the entire governor construction and connections are enclosed by stationary housings, whereby the parts are not only protected, but they are no exposed rotating members.

The normal positions of the valve and the governor weight 23 are shown in Figs. 3 and 4. It will be observed that the valve is substantially wide open and that it can be adjusted totake other positions by turning the collar 39 on the rod 38. If the engine speed is increased then the weight 23 tends to swing out and through the link 25 and block 24 move the rod 38 longitudinally in a direction to close the valve, thus reducing the amount of mixture admitted to the engine and consequently the speed of the engine. It will be apparent from the above description that the apparatus is exceedingly simple and that because of the straight line connection between the gearing and the valve, a minimum number of parts are used. Furthermore because of the novel form and arrangement of the governor, a very simple and direct connection to the valve is permitted,

Although a specific structural embodiment of the invention has been described it is apparent that the details thereof may be varied within wide limits without departing from the spirit of the invention. I

Having thus descirbed my invention, what I claim and desire to secure by Letters Patent is 1- 1. The combination with a hydrocarbon motor having gearing at one end thereof, an intake manifold at one side with a depending stem and a valve for controlling the flow of explosive mixture in said stem; of automatic means responsive to the speed of the motor for actuating said valve disposed under the manifold between the stem and the cylinders of the motor and substantially at the same elevation as the valve, and means to drive the automatic means from said gearing disposed.

at substantially the same elevation as the automatic means.

2. The combination with a hydrocarbon motor having an intake manifold, a valve for controlling the flow of fluid therein and gearing at one end of the motor enclosed in a housing; of a speed responsive governor substantially at the same elevation as the valve, actuated by said gearing, a housing surrounding said governor secured to the gearing housing and having a substantially horizontal tubular extension coaxial with the axis of rotation of the governor connected to said manifold adjacent the valve, and mechanism for operatively connecting the governor and valve disposed in said extension..

3. The combination with a hydrocarbon motor having gearing at one end thereof and enclosed in a housing, an intake manifold having a depending stem and a throttle valve therein, of a speed responsive governor actuated by said gearing, a housing surrounding said governor and secured to said gearing housing, a substantially horizontal tubular member connecting said governor housing and stem, and coaxial with said governor, mechanism within said member operatively connecting the governor and valve including a slidable rod, and means at the stem end of said member to adjust the responsiveness of said governor.

4. The combination with a hydrocarbon motor having gearing at one end thereof enclosed in a housing, an intake manifold having a depending stem and a throttle valve therein; of a speed responsive governor actuated by said gearing, a housing surrounding said governor and connected to said gearing housing, a tubular member connecting said governor housing and stem and substantially coaxial with the governor member, a crank arm on the valve and a slidable rod within said member connecting the governor and said arm and a spring at the stem end of said member opposing movement of said rod in one direction.

. 5. The combination with a hydrocarbon motor having an intake manifold, a, valve for controlling the flow of fluid therein; of automatic means for operating said valve comprising gearing at the front of the motor, a speed responsive member aligned with one of the gears and rotatable therewith, and a horizontal element coaxial with said member operatively interposed between said mem-' her and valve and having one end directly connected to said valve and the other end directly actuated by said member, said memernor driven by said aring, a housing for her being at substantially the same elevation said governor secure? as said valve. ing, the axis of the governor being at sub- 6. The combination With a hydrocarbon sta'ntially the same elevation as the valve,

5 motor having an intake, manifold, a valve and horizontally disposed mechanism eonfor controlling the flow of fluid therein, gearnecting said governor and valve.

to the gearing hous- 10 ing at one end of the motor and a housing In testimony whereof I aflix my signature. 15

for said gearing; of a speed responsive gov- K WALTER E. BLAINE.

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