US2221287A

US2221287A - Internal combustion engine

Info

Publication number: US2221287A
Application number: US306645A
Authority: US
Inventors: Huber Fritz
Original assignee: Heinrich Lanz AG
Current assignee: Heinrich Lanz AG
Priority date: 1934-11-16
Filing date: 1939-11-29
Publication date: 1940-11-12
Anticipated expiration: 1957-11-12

Description

: 'Nbv. 12, 1940; F H 2,221,287

INTERNAL COMBUSTION ENGINE Filed Nov. 29, 1939 In venlor Frilz Huber /QM/f/17 Patented Nov. 12, 1940 UNITED STATES INTERNAL CODIBUSTION ENGINE Fritz Huber, Mannheim, Germany, as Signor to Heinrich Lanz A.-G., Mannheim, Germany Application November 29, 1939, Serial No. 306,645 In Germany November 16, 1934 6 Claims. (Cl. 123-33) This invention relates to an internal combustion engine provided with an eddy chamber.

In eddy chamber engines having a vertical ignition or discharge duct it is known to arrange the nozzle in the direction of the duct so that fuel is squirted into the cylinder when the engine is started. It is further known to have the discharge duct enter obliquely at the edge of the cylinder and to construct a portion of the eddy l0 chamber in the form of a removable separate member which is heated from the outside.

The invention difiers from the known art in providing for a novel arrangement of the removable member, the nozzle and an electric heating 15 means in eddy chamber engines in which the nozzle and the discharge duct are disposed obliquely and nearly alike in such manner that during starting fuel is squirted approximately at v the edge of the cylinder into the gap formed be- 20 tween the piston head and the cylinder cover. The feature of the invention is that the removable or insertable member constituting the -un-,

cooled'portion of the eddy chamber and being heatable from without extends from the nozzle 25 at least up to the discharge duct and that the electric heating means is positioned at the other side of the nozzle.

This arrangement involves the following advantages: The uncooled removable member may 30 be made relatively large with respect to the cooled portion of the eddy chamber, and it may be taken out without interfering with other connections to permit inspection of the eddy chamber, the discharge duct and of the piston head 35 from the outside. Furthermore, the construction of the cylinder cover is quite simple with respect to the casting and machining work involved, it avoids protruding parts and leaves sufficient space on the cylinder for the accommoda- 0 tion of large valves, the eddy chamber, the removable member and the heating means being all contained within the cover.

The invention is illustrated by way of example in the accompanying drawing, in which Figures 1 and 2 show two constructional embodiments of the invention.

In the constructions shown,'a represents the cylinder; (1., the edge of the cylinder; b, the

cylinder cover; 0, the eddy chamber; (1, the dis- 50 charge duct; e, the nozzle; and I, an electric heating device. In both embodiments the axis of the nozzle e is arranged at an acute angle to the axis of. the duct 11 which tangentially enters the eddy chamber 0 and extends at an acute 55 angle to the axis of the cylinder a.

In Fig. 1 the letter 9 and in Fig. 2 the letter 1' designate the removable or insertable member whose bottoms h. and 7c, respectively, form the withdrawable portion of the eddy chamber 0. The parts It and k are located directly and on one side next to the nozzle e, and the heating device 1 is disposed at the other side thereof. The central axes of the members 9 andi lie in planes running either at right angles (Fig. l) or parallel (Fig. 2) to the cylinder axis. As shown in 10 Fig. 2, the axis of the removable member i is positioned between the cylinder axis and the equidirected axis of the eddy chamber 0.

In the construction shown in Fig. 1 the member It extends up to the discharge duct (1. In Fig. 2 the removable member 1 has been drawn down to the edge of the cylinder and in its lower portion takes up the discharge duct 02. To insure uniform temperature of the eddy chamber 0 in the latter construction a free space v 2" must remain between the member 10 and the opposite wall and extend up to the combustion space of the cylinder.

I claim:

1. A cylinder head for an internal combustion engine comprising, in combination, an eddy chamber, passage means tangentially connected with said eddy chamber and being inclined with respect to the head wall and to the axis of the engine cylinder a fuel nozzle means terminating in said eddy chamber and having an axis inclined with respect to the cylinder axis generally in the same direction as is the axis of said passage means, a heating device terminating in said 'eddy chamberon one side of said nozzle means,

and a substantially hollow, uncooled removable member disposed on the other side of said nozzle means and having a curved surface portion forming apart of the interior wall of said eddy chamber extending from said nozzle to said 40 passage means.

2. A cylinder head for an internal combustion engine comprising, in combination, an eddy chamber, passage means tangentially connected with said eddy chamber and being disposed at .an acute angle with respect to the axis of the engine cylinder, a fuel nozzle means terminating in said eddy chamber and having an axis inclined with respect to the cylinder axis in substantially the same direction as is the axis of said passage means, a heating device disposed laterally with respect to said nozzle means and terminating in said eddy chamber, and a substantially hollow,- uncooled plug member removable directly from outside and disposed at the with said eddy chamber and being inclined with respect to the head wall and to the axis of the engine cylinder a fuel nozzle means terminating in said eddy chamber and having an axis inclined with respect to the cylinder axis generally in the same direction as is the axis of said passage means, a heating device disposed laterally with respect to said nozzle means and terminating in said eddy chamber, and a substantially hollow, uncooled removable member having a curved surface portion forming a substantial portion of the interior wall of said eddy chamber, said portion extending from said nozzle to said passage means and continuing tangentially. into a wall portion of said passage means.

4. A cylinder head for an internal combustion engine comprising, in combination, an eddy chamber, passage means tangentially connected with said eddy chamber and being inclined with respect to the head wall and to the axis of the engine cylinder, a fuel nozzle means terminating in said eddy chamber and having an axis inclined with respect to the cylinder axis generally in the same direction as is the axis of said passage means, a heating device disposed laterally with respect to said nozzle means and terminating in said eddy chamber, and a substantially hollow, uncooled removable pluglike member having a curved surface portion forming a part of the interior wall of said eddy chamber extending from said nozzle to said passage means and' having a wall portion tangentially continuing into a wall portion of said passage means, the

axis of said pluglike member being disposed substantially at a right angle with respect to the axis of the engine cylinder.

5. A cylinder head for an internal combustion engine comprising, in combination, an eddy chamber passage means tangentially connected with said eddy chamber and being inclined with respect to the head wall and to the axis of the engine cylinder, a fuel nozzle means terminating in said eddy chamber and having an axis inclined with respect to the cylinder axis in substantially the same direction as is the axis of said passage means, a heating device disposed laterally with respect to said nozzle means and terminating in said eddy chamber, and a substantially hollow, uncooled removable pluglike member having a curved surface portion forming a part of the interior wall of said eddy chamber extending from said nozzle to said passage means, said pluglike member being disposed between the axis of the engn'ne cylinder and said nozzle means and removable directly from outside and including said passage means.

6. A cylinder head for an internal combustion engine comprising, in combination, an eddy chamber, passage means tangentially connected with said eddy chamber and being inclined with respect to the head wall and to the axis of the engine cylinder, a fuel nozzle means terminating in said eddy chamber and having an axis inclined with respect to the cylinder axis in substantially the same direction as is the axis of said passage means, a heating device disposed laterally with respect to said nozzle means and terminating in said eddy chamber, and a substantially hollow, uncooled pluglike member removable directly from outside and having a curved surface portion forming a part of the interior wall of said eddy chamber extending from said nozzle to said channel means, said pluglike member including said passage means, and having a cavity extending around said curved surface portion and adjacent to said passage means and the engine cylinder.

FRITZ HUBER.