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Publication numberUS1761931 A
Publication typeGrant
Publication dateJun 3, 1930
Filing dateJul 9, 1928
Priority dateJul 9, 1928
Publication numberUS 1761931 A, US 1761931A, US-A-1761931, US1761931 A, US1761931A
InventorsMckinley Charles W
Original AssigneeAc Spark Plug Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Carbon-removing-liquid injector
US 1761931 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

June 3, 1.930. c. w. MGKINLEY 1,751,931

CARBON REMOVNG LIQUID INJECTOR Filed July 9, 1928 $511 d 4W @Je sa M' l Srl-migo ap lied thereto.

Patented June l3b, 1930 U-NITED STATI-:s v'PA'raN'r oFFicE CHARLES w.

HCHINLEY, or rLIN'r, MICHIGAN, AssIGNon 'ro A C seam: PLUG Co PANLOI' FLINT, MICHIGAN, A CoMrnNY or MICHIGAN CARBON-REMOVING-LIQUID Application led July 9, V1928. Serial No. 291,371.

This invention relates to internal combustion engines, and more particularly to a device for attachment on the intake manifold of lhe engine for the purpose of yintroducin a carbon 'softening or dissolving compoun into the en 'ne cylinders.

It is an o ject ofthe invention to provide a device which will be simple in des1gn.and economical in manufacture, and which may be readily applied at small cost on existing engines without necessitating the drillin .and tappin of-holes for attachment, an' which may e left on-the car as a permanent engine accessory. The device comprises a container for thedecarbonizing liquid,of a

ca acity suiiicient for one treatment, having a ller opening that is normally covered by a closure plate to preclude the entranceof dirt when the device is not in use, and an 2oA outlet valve controlling the 'iow Aof liquid into the intake manifold, thef valve being yieldingl held on its seat by a tension spring w 'ch also bears-against the closure plate, resulting in a certain amount of fric-, tionalresistance to the movement of the closure plate. Y

= Avpreferred, but not necessarily the only embodiment of the invention, is .Ilustrated in the accompanying drawing in which Figure 1 isa side elevation of an internal combustion engine with the present invention i ure 2 lis an elevation of the device forming the present subject `matter.

Figure 3 is a vertical sectional view thereof and .ligure 4 is a top-plan view with parts broken away. Referring to the drawings, the numeral 1 indicates an internal combustion engine hav- 'ing a carburetor 2 and an intakemanifold 3 1eading to the combustion chambers of the engine. -Most engines now on the market have intake manifolds th are provided with fittings threaded therein for the atl tachment of a suction conduit leading to either a'suction operated winds 'eld wiper orja vacuum operated fuel feed ystem. 'It is proposedv in the presentjinstance to substif tutelfor the standard screw threaded fitting,

a T-tting 4 to one leg of which the suction vacuum tank is connected, andl to the other lelg of which is attached the device with w ich the present invention is concerned.

This device consists-of a receptacle'or container 6, preferably formed fromA sheet metal, having an opening in'the bottom wall 7 thereof, throu ed projection o a hollow fitting 8, the marginal edge portions at the opening in the wall 7 beingclamped between the fitting 8 and a fitting 9 screw threaded thereon and having an extension 10 for engagement withv the T-fitting 4.' Seated against a shoulder in the hollow tting 8 isa valve head 11 carried by the stem 12 having at its upper end aknob 13. The stem 12 extends through a cap 14 secured over the top'of the receptacle 6 and a plate 15, the cap and plate having corresponding openings -16 yand 17 respectively which ma be brought into alignment upon rece liquld. A tongue or ear 18 is preferably struck up from rotation 'of the plate about the stem 12. Surrounding the stem and interposed between the knob 13 and plate 15 is a coiled tension spring 19 which tends to yieldinglyl hold the valve on its -seat and at the same time bears against the plate, pressing the plate toward the cap 14 and serving therey to hold the plate against movement relative to the cap'.

At such regular intervals, when it is deslred to in]ect the decarbonizing liquid into` the engine cylinders, the container' is rst filled with the duid and the engine started. When the engine is running at a fair rate of speed the carburetor throttle. valve is allowed -to'suddenl snap shut and at the samel instance thekno 13 is depressed, whereby the vacuum -present in' the manifoldv sucks the contents of-the container into the manifold and distributes it to the several cylinders. The high vacuum'produces a spray h which extends the threadrotation Io the plate 18, to permit the tacle to be filled with decarbonizing v vline 5 leading to the windshield wiper or the plate 15 to facilitate the which can be easily and uniforml distributed to the cylinders.l As soon as t e engine combustion chambers become filled with the decarbonizing Huid the engine will cease-to operate, and 1f the engine is allowed to stand idle for a certain period long enough to allow the fluid to attack'and dissolve or soften thecarbon, the loosened carbon will be rblown out through the exhaust when the engine vis again started.

I claim: l

1. AA .decarboniz'er of the character. de# scribed, including a fluid container adapted for attachment with an engine intake passage, a closure cap for` the'top of the container, having a filler opening therein, a plate movablerelative to said cap to cover or uncover said filler opening, a valve manually movable in one direction to open position to allow the flow of decarbonizing fluid from the container into the intake passage under `influence of suct1on 1n the passage,.

and having a stem projecting thru the closure cap, and a tension spring between the end of the'valve stem and said plate holding the valve normally on its seat against engine suction and resisting movement of said plate. 2. A decarbonizer of the class described, including a fluid container, adapted for attachment with an engine intake passageway, and having a ller opening therein, a rotary closure plate adapted upon movement to .cover or uncover said opening, a valve controlling luid flow from-the container into the intake passage under influence of suction in the passage and having a st em projecting thru the plate and forming a pivotal .mounting therefor, a knob on the end of the l stem, the depression ,of 1 which unseats said valve, and a tension spring surrounding the valve stem and bearlng at opposite ends.

against the knob and said plate and serving to normally hold the valve closed and the plate against movement.

In testimony whereof I aix my si nature. i CHARLES W. MQKIN EY.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2576509 *Jul 18, 1949Nov 27, 1951Hren Ralph RSelf-sealing cap having relatively axially slidable tubular members
US2887997 *Feb 23, 1956May 26, 1959Robert H ThornerSelf cleaning means for air or gas flow devices
US4162747 *Apr 21, 1977Jul 31, 1979Bosch Siemens Hausgerate GmbhRefill container for pumpable active ingredients of washing agents
U.S. Classification123/198.00A, 123/179.9, 134/166.00R, 222/510
International ClassificationF02B77/04, F02M25/00
Cooperative ClassificationF02M25/00, F02B77/04
European ClassificationF02M25/00