US1999269A - Apparatus for drawing off compressed gases from internal combustion engines - Google Patents

Description

April 360; 1.3., A. ANDERBERG farm. a 1,999,269

APPARATUS FOR DRAWING COMPRESSED GASES FROM INTERNAL COMBUSTION ENGINES Filed June 16, 1955 ga -L Patented Apr. 30, 1935 smear OFFICE APPARATUS FOR DRAW ING OFF COM- PRESSED GASES FROM INTERNAL COM- BUSTION ENGINES Anders Anderberg and Lund,

Erik Anders Anderberg, Sweden Application June l6, 1933, Serial No. 676,084 In Great Britain July 15, 1932 3 Claims.

The present invention refers to a valve device for taking off compressed gases from the cylinders of internal combustion engines. This relatively high pressure fluid may be employed for any suitable purpose, such as for instance applying brakes or operating doors. One of the objects of my invention is to provide a valve member proper, a seat, and a stop for limiting the lift of the valve member which together form an aggregate which may be taken out for in spection and cleaning and replaced without disturbing the lift, which is fixed during manufacture of the valve. Another object of my invention is the provision of a valve device in which both the aggregate asa whole and its different parts are symmetrical-or identical in such a way that, in assembling the aggregate or placing the same in position in the valve-device, there is no possibility of placing one of its parts or the whole valve-device, respectively, in a wrong position. These objects are of special advantage inasmuch as the valve device is commonly in the care of unskilled persons.

The invention is more fully described in the following, referring to the attached drawing, in which:-

Figure 1 shows a valve device according to the present invention in vertical section;

Figure 2 shows the same valve device in plan view;

Figure 3 shows a part of Figure l on a larger scale and in vertical section; and

Figure 4 shows the same part in plan view.

In Figure 1, reference character denotes the means for connecting the valve device to the cylinder of an internal combustion engine. The channel for drawing off combustion gases is denoted by 2 and a housing member by 3. The housing is arranged for cooling by a fluid, the inlet for which is denoted by A and the outlet by 5. The channel 2 opens through a conical projection denoted by 211 into a recess formed in housing 3. The valve member proper is indicated by ii and the seat member by l. The stop member for limiting the lift of the valve member is denoted by 8. The parts 6, 1 and 8 are held together by a ring 9, these parts 6, l, 8 and 9 together forming an aggregate. The pipe for leading oil the combustion gases is marked by H and the end E2 of this pipe extends into the recess and is formed with a conical surface.

The gases drawn off from the cylinder of the internal combustion engine will, during certain parts of the cycle, flow through the channel 2, lift the valve member 6 and pass through the channel ID in the ring 9 and through the channel 53 into the outlet pipe II.

The contact surface of the valve member 5 cooperating with part 8 acting as a stop is formed conically and with the same conicity as the valve sealing surface cooperating with part 1 acting as a seat. In the same way the cone denoted 2a and the conical end of the pipe H are formed with the same conicity as said sealing and contact surfaces of the valve member. In this way the seat member '5 and the stop member 8 can be made identical and it does not matter how they are screwed into the ring 9, which keeps them together, as, being made of the same material, the part 8 without any difficulty may serve as a seat and part l asa stop. As, according to what has been stated, the conical surfaces of the valve member are identical, it is immaterial how the valve member is inserted when the aggregate is put together. For screwing the parts I and 8 20 into the part 9 slots l5 are provided. When putting the parts together, the parts i and 8 have first to be screwed into ring 9 in such a way that they both contact the valve member. If the screw thread marked Iii has for instance 24 turns per inch and the desired lift of the valve member 6 is for instance 0.35 mm. this lift will be exactly obtained by loosening one of the parts I or 8 onethird of a turn. After the aggregate, comprising the parts 6, l, 8 and 9 has been put into the hous- 3O ing member 3 and the outlet pipe I i has been screwed fast by means of member I 4, the aggregate is kept in its right position, and at the same time the fixed lifting height is exactly maintained. When the aggregate is taken out for inspection or cleaning, these operations will not have any influence upon the fixed lift of the valve member. The aggregate may, on the contrary, be put back into the valve device after inspection or rinsing, and in doing so it will be of no importance which of the parts 1 or 8 is placed upwards or downwards.

While I have shown and described one more or less specific embodiment of my invention, this is for the purpose of illustration only, and is not intended as a limitation of the scope of the invention, which is to be determined by the appended claims viewed in the light of the prior art.

We claim:

1. Apparatus of the class described including a check valve including a valve member having opposite "conical surfaces, a stop member having opposite conical surfaces and a seat member having opposite conical surfaces, one of the surfaces of said valve member cooperating with one surface of said stop member and the other surface of said valve member cooperating with one surface of said seat member, a housing member having a recess formed therein and provided with a projection having a conical surface extending into said recess, said housing member being formed with a channel passing therethrough and through said projection to communicate with said recess, a conduit having a conical surface extending into said recess, all of said surfaces being of substantially the same conicity, and means for clamping said check valve in said recess between said projection and said conduit with the other conical surfaces of said seat member and said stop member cooperating with the conical surfaces of said projection and said conduit, respectively.

2. Apparatus of the class described including a check valve including a valve member having opposite conical surfaces, a stop member having opposite conical surfaces, a seat member having opposite conical surfaces and means for holding said stop member and said seat member in fixed relationship with said valve member between them, one of the surfaces of said valve member cooperating with one surface of said stop member and the other surface of said valve member cooperating with one surface of said seat member, a housing member having a recess formed therein and provided with a projection having a conical surface extending into such recess, said housing member being formed with a channel passing therethrough and through said projection to communicate with said recess, a conduit having a conical surface extending into said recess, all of said surfaces being of substantially the same conicity, and means for clamping said check valve between said projection and said conduit with the other conical surfaces of said seat member and said stop member cooperating with the conical surfaces of said projection and said conduit, 7

respectively. 7

3. Apparatus of the class described including a check valve including a valve member having opposite conical surfaces, an externally threaded stop member having opposite conical surfaces, an externally threaded seat member having opposite conical surfaces and an internally threaded ring member, said stop member and said seat member being adapted to be screwed into said ring member with said valve member between them, one of the surfaces of said valve member cooperating with one surface of said stop member and the other surface of said valve member cooperating with one surface of said seat member, a housing member having a recess formed therein and provided with a projection having a conical surface extending into said recess, said housing member being formed with a channel passing therethrough and through said projection to communicate with said recess, a conduit having a conical surface extending into said recess, all of said surfaces being of substantially the same conicity, and means for clamping said check valve between said projection and said conduit with the other conical surfaces of said seat member and said stop member cooperating with the conical surfaces of said projection and said conduit, respectively.

ANDERS ANDERBERG. ERIK AN ANDERBERG.

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