1920-03-11

Abstract of GB138305 138,305. Courrejou, M. Jan. 25, 1919, [Convention date]. Cylinders, pipes for; charge, moistening.-Additional air and water are admitted to the induction pipe by a device comprising a suction-actuated air-inlet valve 13, with a passage 14, 30 through the valve and its rod which communicates with a water pipe 27 when the valve is sufficiently opened by the engine suction. The valve casing is secured to the induction pipe by an adapter 5 having a throttled passage 6, and the valve is normally held on its seat by an adjustable spring 17. The pipe 27 is pressed against the stem of the valve 13 by a spring 25, and forms a continuation of the water supply pipe 32. Hot water from the radiator may be admitted to the pipe 27, which is regulated by a needle valve. The Specification as open to inspection under Sect. 91 (3) (a) states that steam from the radiator or from a water pipe heated by the exhaust may be admitted to the pipe 27. This subjectmatter does not appear in the Specification as accepted.

5

1920-03-11

F02B47/02 ; F02M25/022 ; F02B47/00 ; F02M25/00

F02B47/02

GB19190014997 19190613

FRX138305 19190125

1	Improvements in or relating to supplementary air and water injectors for internal combustion engines
	Inventor:	Applicant: MARCEL ANDRE COURREJOU
	EC:F02B47/02	IPC: F02B47/02; F02M25/022;F02B47/00(+1)
	Publication info: GB138305 A - 1920-03-11

1	AIR FUEL INJECTION DEVICE
	Inventor: DODGE NORMAN JAMES (AU)	Applicant: DODGE NORMAN JAMES
	EC:F02B47/02; F02M25/00	IPC: F02B47/02; F02M25/00; F02M25/022(+8)
	Publication info: WO8301979 - 1983-06-09

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:-

1. An additional air and water injector for explosion engines, comprising a casing or body adapted to be connected to the mixture inlet of the engine in the interior of which casing is arranged an automatic spring loaded valve the space below the valve communicating with the said inlet, a chamber located above the valve and in communication with the atmosphere, and a passage through the valve and its rod which can communicate with a water pipe, operating as and for the purpose described.

2. An injector as claimed in Claim 1, in which the casing carries a funnel the base of which communicates through orifices with the chamber above the valve.

3. An injector as claimed'in Claim 1, in which the passage in the valve rod terminates in a transverse channel in said rod and in which a duct leading to the water pipe is provided in the casing arranged in such a manner that the mouth of the channel in the valve rod registers with the inner end of the duct when the valve is in a desired position.

4. An injector as claimed in Claim 3, in which the water admission passages are soarmanged that water enters the engine inlet after the valve has opened to admit additional air thereto.

5. The water and supplementary air injector for internal combustion engines, substantially as described or substantially as illustrated in the accompanying drawings.

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COMPLETE SPECIFICATION.

Improvements in or relating to Supplementary Air and Water

Injectors for Internal Combustion Engines.

I, MARCEL ANDRÉ COURREJOU, of 19, rue de la Gare, Levallois, France,

Engineer, do hereby declare the nature of this invention and in what manner the same is to be performed, to be particularly described and ascertained in and by the following statement:-

This invention relates to apparatus for introducing into the cylinder or cylinders of internal combustion engines during the suction stroke additional air with or without a quantity of sprayed water, the introduction of these being regulated to suit the speed of the engine,

The apparatus according to this invention comprises a casing or body adapted to be connected to the mixture inlet of the engine in the interior of which casing is arranged an automatic spring loaded valve the space below the valve com- municating with the said inlet, a chamber located above the valve, and a passage through the valve and its rod which can communicate with a water pipe.

In the accompanying drawing given merely by way of. example

Figure 1 is a sectional elevation of the apparatus of which

Figure 2 is an end elevation, partly in section.

In the drawing, 1 is the body of the apparatus, the upper part of which has the shape of a funnel 2, in the centre of which rises a boss 3 ; at the bottom, the body 1 has a screwthread 4 for attachment to an adapter 5 intended to secure the apparatus on the suction pipe of the engine, between the latter and the carburettor. The adapter 5 is provided with suitable holes and has a throttled passage 6 connecting a chamber 7 therein and a widened conduit 8 which leads into the suction branch for the explosive mixture.

The boss 3 is bored with an axial hole 9 ofa, suitable diameter for receiving a valve rod 10 ; this hole 9 opens into a chamber 11 in the interior of the body 1' and communicating with the admission branch through the chamber 7 and the conduit 8. Holes 12 establish communication between the chamber 11 and the funnel 2, and provide for the admission of the additional air.

The valve rod 10 terminates in a head 13 forming the valve body, the seat .for which is constituted by the bottom wall of the body 1. At this end, the rod 10 is bored with an axial conduit 14 running into a transverse channel 30 which opens into the chamber 11, and at the other end the rod 10 has a squared 'part 15 and a screw-threaded part 16. This rod 10 passes through the interior of a spring 17 which is held between two washers 18 andly. , A m311e .

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washer '20 with a square 'hole fits on the square 15 and can thus slide but not turn on this pait of the rod 10. Anut 21 for regulating the tension of the spring 17, is provided on the threaded end 16 and the washer 20 carrier a small projection or pin 22 which engages with one of a series of holes in the nut 21 to ensure its locking without the use of a split.pin. The spring. 17 being com- pressible by hand, its setting can be adjusted by pushing down the washer 20 until the nut 21 is freed by the pin 22 leaving the 'hole in -the washer 20. After the adjustment is effected the new position is fixed by allowing the pin 22 to enter a suitable hole in the washer 20. '

On its lateral face, the body 1 has a boss 23 bored in the axial direction, in which is screwed a connection 24 connected by a nut 26 to a suitable water inlet pipe 32 ; a spring 25 is arranged within the said connection 24 and abuts at one end on a sleeve 33 encircling the waterinlet 2, and at the other end against a sleeve 27. This 'sleeve27 .forms a continuation of .the water pipe, and being pushed by the spring 25, it bears on the valve rod 10, to the radius of which the said sleeve is formed at its end in order to obtain a good joint.

A lug 29 on the sleeve closes the orifice 30 of the conduit 14. A needlevalve 31 provides for regulation of the delivery of water.

In order to work properly, the apparatus must be arranged on the inlet pipe for .the fresh mixture as close as possible to the cylinder or cylinders and it could be mounted in any direction, but the water tank should be at a higher level.

With the engine running slow, the suction in the inlet pipe is small, and cannot overcome the rcsistance of the spring 17, and neither additional air nor water will be admitted, since the valve 13 resting on its seat prevents admission of air, and the valve rod 10 closes the water inlet orifice28.

If the speed of the engine is increased, the suction in the inlet pipe caused by the movement of the pistons becomes sufficient to overcome the .pressure of the 'spring 17, the valve 5 leaves its seat and allows atmospheric air .to enter through the conduits 12 .

At a still higher speed, the suction will be still greater, and the spring 17 having been adjusted to allow admission of, water when a .predetermined speed of running is reached, the orifice 30 of the valve .rod will .come opposite the orifice 28 of the sleeve leading to the water pipe, and water will escape through the conduit 14 into the diffusion chamber 7 where currents of air will beat it to spray. The mixture then passes through the throttled passage 6 into the inlet pipe of the engine.

The additional air and water injector described when the engine accelerates provides a supply of extra air, the admission of water being delayed until a greater speed is reached, owing to the inertia of .the valve which takes a certain time to open and to the admission of additional air before the openings28 :and 30 register, which .tends to raise the pressure and thus to retard the injection of water..

When the speed is reduced, the closing of the water inlet is brought about by the spring 17 which pulls the valve 13 back towards its seat. Additional air continues to arrive until the speed of the engine having further slowed down, the suction is not sufficient to move the valve which then rests on its seat and shuts off any admission of wateror, supplementary air. The running at slow speed .is thus not affected, explosive mixture alone arriving in the cylinder or cylinders.

The working of the injector is quite automatic. It can utilise if desired hot - water from the radiator.

This 'supplementary air and ,water injector improves therunning of the engine, increasing the time of running between overhauls and making cleaning of the .explosion chambers less frequently necessary, the oxygen of the water decom- .posed by the heat consuming any .deposits ,formedon ,the walls of the said - chambers.@