US1267728A - Fuel-feeding mechanism. - Google Patents

Description

NEWTON FUEL FEEDHuG MECHAHESFYT. APPLICATION HLED MAR. 29, 192:

.-wmmm. FUEL FEEDING MECHANISM. APPLICATHJN FILED FYI/L29, YQEZ.

Eatente May 28,1918.

A. WINTON.

FUEL FEEDBNG MEfiHANlSM.

APPLICATION F L ED MAR, 2&1.- 1917.

Patented May 28, 1918.

3 SHEETSSHEET 3.

42f? J Q49 coming UNITED PATENT OFFICE.

AKHETZAIN 17133 71151 T 31?,

State of (l. I

(341.1 by. end useici voils eec This 1H to bussioto. movore end portion feeding mechanism. therefor.

In supplyin foe-i to internal combusiioo motors has been customary to employ an injecting device with means 1 c. oer controlling the stroke or conti'olliii the amount injected by using a. constantstiolie injecting device and bypassing a portion the charge or cutting ofi the supply of fuel on. the receiving stroke to limit the amount pas ing to the injecting device in proper amount for the charge; The lest named de vice is the most effective is cpplicent eble to cscei but even; in this case, in. some iiie'be'lie-Uions; the ump seems to iojcc: too groe'f; en amount for the PlOlJBl amount o charge when the governor is clieckii: o a i tie motor builds upiced It would be ve d1 "*5 out just why iscis occurs but 1.1531355; and the present device To 1 r the purgose of meeting ciiis d over? 5 Au. 1 z" stroke eceive the iuei from.

J to the i1 tion v lves so i eccing pumps they would Quill choc 1 every stroke tow wed ihe cylinder. amount of she charge or IIlQiHlS for determining factor is controlled by utilizing separate or indepeiidcair "motor means such as an air engine which drives the fuel pump and which is cvcrned in so for its speed is concern-2 by 'zlie the main motor or engine, In the iniei; valves oi the in usual manner e2" is determined 3 governor of words s cpl-retool The ZRVGHtl-Qlfi may be iiiitiier sumore-sent 3F LAKE??? $313, 0510.

Patented May 28, 1918.

gene No. 158522133.

ing soccer and cam; Fig. 3 is a, sectional view throu h the injection device and taken on a line through one of the doubie pump structures and their valve mechanism; Fig.

is :1 detailed view of the air valve for controlling air motor; Fig. 5 is a side elevation of the device with the gear casing broken away to Show gearing between the air motor and the injecting device; and Fig 6 is to plan view of the device with portions broken In the amongement shown 1 represents the crank of internal combustion motor cdcpied to support she several cylinders 9, e ch of which. has a piston, not shown, and suitable Zl L'ln inlet and exhaust valve mechanism of an preferred form, but

of any importance, so far as the ention is concerned. The engine 0 provided with a suitable governor 3 y oieferrcd type adapted to actuate l cseiik lever 4 mounted upon a supend having one of its arms conn the governor and the other to the in ecting motor valve structure wluch will 1 1 cc oesci'ibed i the cylinders is provided with an "ve device of any preferred form of the form shown in my icmsion Serial No. 876,971 filed 1915 i is unnecessary to V s vibe this valve in view of its complete oisclosui'e in the former apglicwcion but it comprises in the main a casing 6 having a valve seat 7 at its lower end and suitable chambers for receiving mixing devices 8 end wmixing block 9 which is provided with ports 10 connected with the fuel inlet 11! Engaging the valve seat is an injection valve 12 arranged on the lower end of e valve stem 13 which passes up through the air let opening M and out through a, smiling box structure 15 at the top where is receives a thrust washer 16 adapted to be moved upward in, the usual manner by the spring 1?. This valve stem is endgfiiged by one end of a rocker lever 18 suppo on suitable bracket 19 mounted on the engine. The other end of this rocker lever 18 is provided with a friction roller '20 engaging the fuel inlet cam 21 mounted upon a cam shaft 22 driven by the engine in any preferred manner, but in step so that the fuel inlet valve is opened at the proper point inv the cycle of operations of the engine. There is one of these inlet valve devices for each 4 cylinder, and it is obvious that they will be timed properly throughout the engine.

The fuel injection mechanism, which forms the specific subject matter of this application, comprises a main pump body supported by the engine in any preferred manner and comprises two halves 23 and 24-. These two halves are so formed that they, provide an eccentric chamber 25 at the center with laterally extending bores or pump barrels 26 ex tendingin opposite directions from this crank or eccentric chamber. Each of these barrels extends outward to a valve body 27 preferably integral with the corresponding half portion of the pump body and each of these valve bodies is provided with a port 28 connected to the end of the corresponding pump barrel and receiving a discharge valve 29. The lower end ofthis port communicates with an inlet check valve 30 arranged in a block 31 and this check valvev port3l. These blocks'are held in place by of ,being controlled by .detailed structure of this air motor suitable bolts 35. Above the discharge valve 29 are similar check valve blocks 36 and 3'? and above these there is a discharge connection blocl: 38 receiving several discharge connections 39 which in turn receive discharge pipes l0 leading to the several cylinders.

There isa pump for every cylinder and they are arranged in a manner so that the pump barrels of any two cylinders. opposeeach other.

Eachpair of opposing pump'barrels receives a pump plunger structure comprising pump plungers 4:1 and 42 connected by a scotch yoke structure 43 and each of tllese yokes receives an eccentric 44 arranged upon an eccentric shaft 45 extending through the chamber 25 mounted in suitable bearings in the body and extended beyond the same to a point where it enters a gear casing 46 supported upon suitable posts 47 secured to the pump body. Within this casing is a main tlI'IVII Ig gear 48 which meshes with the drivmg p1n1on l9 mounted upon a shaft 50 which is driven by and preferably forms a part of an air motor. 51 of any preferred type capable a throt'tle'valve arranged in a line connected to it. Since the forms no part r the invention it is deemed unnecessary to describe it in detail or show it other than in a conventional way. The controlling throttle valve, however, is shown in Fig. 4e and it comprises the casing 52 havinga valve opening 53. therein connected to an air supply connection 5flleading to any source of fluid pressure, and a discharge opening 55 leading to the motor. Within the valve opening is the slide valve having an opening 57 therein adapted to be brought in registry with the inlet ope and the discharge opening. 'llhestemvalve passes through a stufiing hon struc 58 and is connected to a clevis connected to the bell cranlz: lever control of the governor oi. the en ine.

The device operates in the following manner: Assuming that the engine inlet vflves are properly timed and that the rest of the engine mechanism is in operative condition and that the engine is started by any of the well known devices or instriimentalities for that purpose the governor of the engine or main motor, through its connection with throttle or controlling valve of the fluid ire jection motor, opens this control valve adinitting fluid pressure to the motor. Thereupon the injection device is operated i'uel is supplied in a quantity, according to the speed. of the injection motor, several injection valves which the incl. to the proper cylinder at the proper time.

Having described my invention, claim I 1. in an internal combustion met a cylinder, a piston, a governing .e- :ror motor and fuel feeding mechanism under control thereof and comprising a fuel in jecting device, fuel inlet mechanism for the cylinder, and motor means for actuating the fuel injecting device and controlled by I governing device for the internal combustion motor.

2. ln an internal combustion motor, a cyl inder, a piston, fuel injecting valve therefor, a governor for said internal combustion mo tor, and fuel injecting mechanism comprising an injecting device, and independent motor means for actuating the same and controlledin its operation by said governor.

' 3. I an. internal combustion motor, a cyl inder, a piston, fuel injecting valve therefor, a governor for said internal combustion motor, and fuel injecting mechanism comprising an injecting device, an independeni'fmm tor for actuating the injecting device, and connections between said motor and said governor whereby the operation. of said in dependent motor is controlled thereby.

4:. in an internal combustion motor, acylinder, a piston, fuel injecting valve therefor,

a governor for said internal combustion motor, and fuel in ecting mechanism eompr1smg an lllflefitlniqliievme an independent incllll

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