US819258A - Internal-combustion engine. - Google Patents

Description

0. W. WEI-SS. INTERNAL COMBUSTION ENGINE.

9 APPLICATION FILED MAILB, 1902.

l 1 a, Z 0 a PATENTED MAY *1, 1906.

1o hereof.

3 ble, however, simp y to divide the any convenient line, because of the necessit UNITED STATES PATENT OFFICE.

CARL W. WEISS, OF BROOKLYN, NEW YORK.

INTERNAL-COMBUSTION E NGIN E.

' Specification of Letters Patent.

rajiented May 1, 1906.

Application filed March 6, 1902'. Serial No, 96,878.

To all whom itdmay concern; v 1

Be it known thatI, CARL W. WEISS, a citizen of the United States, residing in the borough of Brooklyn,- of the city of New York,

5 State of New York, have inventedf certain new and useful Improvements in Internal: Combustion Engines, of which the following 1s a specification, reference being bad to the accompanying drawings, forming a part invention relates to internal-combustion or explosive engines of a Well-known character 1n which atrunk-piston recipro cates in the working cylinder and in which the air which is mixed with a hydrocarbon vapor to form the explosive charge is compressed by the forward stroke vof the .piston within the inclosed crankchamberand is conducted thence into the working cylinder through a suitable port formed in .the latter.

In-smaller engines .ofthis type it is entirely practicable to cast the engine-frame, comprising the working cylinder and the crankchamber, in one piece; but in larger engines 2 5 the casting for the frame is solarge and heavy as tomake 1t diflicult to handle, and there-.

fore to make it desirable, if possible, to form the frame in two parts, which are subsequently secured to ether. It is im ractieaameon of avoiding any joint in the cylinder throug which the trunk-piston moves and of'the further necessityof providing for the requisite ports for the proper conduction of the air and the products of combustion.

7 It is the object of this-invention, therefore, M to provide for the construction of such an engine-frarne in ,two arts, while meeting suc- 4 cessfully the difficu ties which present them selves, as above sug ested.

- The invention be more. fully described hereinafter with reference to the accom anying drawin s, in which, for purposes 0 illus- I l tration an "expla n ation,- it s represented as embodiedwina convenient and practicable form.

In the drawings, Figure 1 is a longitudinal verticalsection, on. a slightly irregular but 5 substantially centralplane, of so much of an embodies the present improve engine Whic ment as is necessary to enab e the same to be understood. Fig. 2 is an end view of the cylinder portion of the engine-frame shown in Fig. 1, the cap over the air-channel-being omitted. i Fig. 3 is an end view of the crankchamber portion of the engine-frame shown in Fig. l.

The cylinder ortionA of the engine-frame may be of usua form and'c onstruction, except as hereinafter indicated. A waterjacket A is provided for the'cylinder portion it is wholly formed in or with the cylinder ortion. The forward extension A 'has such ength as is necessary for ro er cooperation is ed at a to fit closely within the seat provided therefor in with thepiston and is the crank-chamber portion, as hereinafter described. .It is also formed with a finished faceorshoulder 0/ to fit closely. against the face of the'crank-chamber' portion. A port and is of ordinary construction," except that orchann'el a is formed in the wall ofthecylinder portion for the admission of the air from the crank-chamber into the working cylinder, one orifice of such port or channel being located'in the finished face or shoulder a,

while the other opens into the working cylinder, as usual. For convenience this channel ma be formed partly in a cap a which may be ormed se arately." An a1r-port a forthe admission 0 air to the crank-chamber is formed in the portion a of the cylinder extension A and an exhaust-port a. maybe provided, as usual.

The crank hamber portion B is formed substantially as usual, except that it is rovided with a seat at b to receive with a c ose fit, the portion-a of the cylinder portion A. It is also provided with a finished faceor shoulder 11 to fit closely against the correpass-bolts (not necessary to be shown) to securel'y unite the two portions. The plane of meeting of the cylinder portion an the crank-chamber ortion is indicated by the vertical dotted hne in Fig. 1.

Theicra'nk-chamber portion B Ina be supported, as usual, upon a subbase O, w 'ch may e provided with air-inlet ports 0 and c, the

latter being formed in a web a. The division of the subbase by the web c forming cham- 1 I? .the same as usual.

hers, and the provision of the inlets c ands for the chambers, respectively, constitute a convenient muffle for the inrushin-g air.

The trunk piston D may be .formed as usual and connected by a pitinan d with the crank-pin d of the usual crank-disk (i The operation of the engine is substantially During the forward movement of the piston D the ports a and a, as well as ports a", being covered, the air is compressed in the crank-chamber. As the piston approaches the limit of its forward movement the air under compression is admitted to the working cylinder through the port (1 driving out the dead gases or the previous explosion and filling the working cylinder with air which is mixed with the hydro- I carbon vapor. of the piston the mixture of air compressed in the working cylinder, and as I the iston approaches the limit of its rearward movement the port a is uncovered by the piston and air is admitted to the crankchamber to be compressed during the next forward movement of the piston. It will be observed that by the described construction there.is no joint in the cylinder to interfere I with or afiect in any manner the proper action of the piston, while provision is made for the pro er delivery of'the compressed air to the wor ing cylinder, the proper discharge of the dead gases, and the proper introduction. of a fresh supply of air into the crank-chamber.

I claim as my invention- A frame for an explosive-engine comprising a base, an independent crank-chamber portion formed. with an interior seat having an air-inlet port in face, and an independeht cylinder portion formed with a finished face to fit the finished face of the crank-chamber portion and having an extension fitting closely within said seat in the crank-chamber portion with a port arranged to be covered by the piston registering with the air-inlet port in said seat,

said seat and a finished portion having other registering ports in 7 their respective finished faces and an exhaust-port in the cylinder portion arranged to be covered by the piston, substantially as described.

This specification signed and witnessed this 27th day of February, A. D. 1902.

CARL W. WEIss In presence'of ANTHONY N. 'JESBERA,

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