US1602736A

US1602736A - Hydrocarbon motor

Info

Publication number: US1602736A
Application number: US326649A
Authority: US
Inventors: Lionel M Woolson
Original assignee: Packard Motor Car Co
Current assignee: Packard Motor Car Co
Priority date: 1919-09-26
Filing date: 1919-09-26
Publication date: 1926-10-12
Anticipated expiration: 1943-10-12

Description

Oct. 12 192e. 1,602,736

L. M. WQOLSON l-{YDROCARBON MOTOR Filed Sept. 26. 1919 2 Sheets--SheeI 1 ,3W/venan fir/MJL. (LboLSoIL,

Oct. 12 1926.

L. M. WOOLSON HYDROCARBON MOTOR Filed sept. 26, 1919 2 sheets-snee*b Mdo Lo @dbf/9071.154

Patented Oct. 12., 1926.

UNITED STATES PATENT OFFICE.

LIONEL M. WOOLSON, 0F DETROIT, MICHIGAN, ASSIGNOR 'IO PACKARD MOTOR CAB COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

HYDROCARBON MOTOR.

Application filed September 26, l1919. Serial No. 326,649.

This invention relates to hydrocarbon motors, and particularly to means for heating the mixture passing from the carburetor to the motor.

One of the objects of the invention is to provide a detachable" heater device of the combustion type for the intake pipe of Aa hydrocarbon motor.

Another object of the invention is to provide a combustion heater device made up largely of tubular parts for easy attachment to an intake pipe and for cheapness in manufacture.

Another object of the invention is to proivide a heater device in which there -is a circuitous outlet passage from the combustion chamber to the motor intake pipe.

Other objects of the invention will appear from the following description `taken in connection with the drawings, which form a part of the specification, and in which:

Figure 1 is a vertical sectional view of the intake pipe of a hydrocarbon motor v and a combustion heater made in accordance a' motor intake pipe and a combustion heater made in accordance with this invention, but of slightly different form from that shown in Figure 1; and

Figure 6 is a view similar to Figure 5 illustrating a third form of the invention.

Referrin to the form of the invention shown in Figures 1, 2, 3 and 4, l0 representsa motor intake -pipe or manifold having `a throttle valve 11 therein. The intake pipe is shown as substantially square in cross section and is vertically arranged, though `it will be 'understood that it may be cylindrical or any other desired` shape and may extend in any other desired'direction, dependent largely upon the location of the carburetor of the motor relative to the in? take passages in the cylinder block.

The combustion heater device is arranged in the'intake pipe above the throttle valve 11 and it is lndicated in general by the numeral 112.- It comprisesI two

principal pieces

13 and 14 which are threaded together as at 15. 4The piece 13 has a flange 15 and the entire piece is adapted to extend through 'an opening 16 formed in the intake pipe 10. The piece 14 has a flange 17 and the entire piece is adapted to extend through an opening 18 formed in the intake together by means of their threaded connection 15, and by providing suitable washers or gaskets 21 and 22 under the flanges 1,5 and 17 respectively, tight joints are made between the

pieces

13, 14 and the adbetween the parts 19 and 20 of the

pieces

13, 14; y

The interior of the piece 14 forms a combustion space 23 which is fed by a combustible mixture from any suitable mixing device through atube 24 connected to the outer'end of said piece 14. v

The exterior of the piece 14 where it enters the piece 13 is'slightly smaller than the interior of the piece 13 and is formed with a spiral rib 25 as shown particularly in Figures 1 and 2. The exterior of this vrib substantially fits within the piece 13 so that there is formeda spiral space or passage 26 between the periphery of the piece 14 and Ythe interior surface of the piece 13. Near one end of the V'passage 26 a series of openings or ports 27' are formed in the piece 14 'so that the passage 26 communicates with the combustion space 23. At the other end of the passage`26 there are a series of ports or lopenings 28 formed in the piece 13 so that said passage 26 communicates withthe interior or the intake pipe 10. Thus it will be seen that the gas which may be burned in the combustion space 23 will expand and pass outwardly into the intake header 10 throughl the ports 27 the passage 26 and the ports 28, thus passing around the piece 14 several times and heating both ity andA the piede 13. The piece 1 3 is provided exterior- 1y with a series kof finsY or thin flanges 29 to more readily radiate the heat to' the in-v terior ofthe intake header. A l

The inner end of the piece 14 is threaded asat 30 to receive an igniter, shown in the jacent flat sides of the intake pipe 10 and y form of aspark plug 31 and having its points 32 arranged inside of the chamber 23. A Wire 33 connects the 'spark plug with any suitable source of electric. energy so the spark may be formed between the points 32 during the operation of the motor. It Will be understood that the intake pipe 10 and the pipe 24 are connected to suitable carburetors or mixing devices and that when the motor is to be started and is turned over by a suitable electric starter or otherwise, suction is created in the intake pipe 10 above the throttle 11, thus drawing a small amount of mixture past the throttle Where it is cracked open as at 34. Suction is also created on the pipe 24 and mixture is drawn into the combustion space 23 Where it is red by the spark plug 31. The burning and expanding gases pass through the port 27 and into the passage 26, the Hame of course being extinguished before the ports 28 are reached. The burnt gasesl pass through the ports 28 into the intake pipe 10 Where they mix with the incoming gas and heat it. Also the burnt gases in passing through the passage 26 have. heated the heater 12 so that it also acts as a stove to heat the incoming gases. By locating some of the ports 28 immediately above the upper part of the throttle valve 11 when it is in its idling position, the greatest amount of heat is immediately applied to the gases passing through the cracked opening 34.

In the form of the invention shown in Figure 5 the

pieces

13 and 14 are the same as shown in Figure 1, except that the joint at one end is made by a separately attached piece 40 which has a flange 41 abutting against the extreme outer end of the piece 13 and which is secured to the piece 14 by a threaded connecting tube 42. Gaskets 43 are' provided to make the joint tight. The piece 14 is also closed at its outer end as at 44 and the piece`40 provides an additional combustion chamber 45 into which the pipe 24 feeds the combustible mixture for the heater. The spark plug 31 is arranged in the piece 40 so that its points 32 are adjacent the discharge end of the pipe 24 to thereby readily ignite the mixture.

A glass Window 46 is Vprovided in the piece 40 opposite the spark plug 31 sothat the operation of the device may be observed.

In this illustration of the device the intake pipe l0 is shown in horizontal section and its approximately square cross section may be morereadily-seen. The mixture enters the combustion chamber 45 through the pipe 24 andv is fired by the spark plug 31. It then passes into the chamber 23 and into the intake pipe 10 through the ports 27, the spiral passage 26 and the ports 23. In the third form of the invention shown in Figure 6, the pieces13 and 14 are the same as shown in Figure 5 and theseparately attached piece 40 is also similar. It is secured to the piece 13 by a similar Bange 41 and there is the same spark plug 31.

The combustible mixture pipe 24, hoW- ever, feeds into the interior of the piece 40 somewhat differently from either of the other forms. Instead of being attached directly to the piece 40, the pipe 24 is threaded into the outer end of the piece 14 as at and an extension tube 61 carries the mixture from this point to the interior of the piece 40 and discharges it adjacent the points 32 of the spark plug.

By this construction there is a preheating of the combustible mixture due to the fact that it is carried entirely through the combustion space 23 in Which the gases are tired. This is of some advantage in connection with the use of heavier fuels.

It Will be understood that other forms may be designed and used Without departing from the spirit or scope of the invention.

Having thus described my invention, What I claim and desire to secure by Letters Patent is:

1. A heater device comprising a plug part .mixture to said attached part, said means comprising a tube passing through the plug part of the heater device.

3. In a hydrocarbon motor, the combination with the motor intake pipe extending from the carburetor to the cylinders, of a combustion chamber arranged in heat transferringrelation to said intake pipe andhaving an outlet into said intake pipe, an igniter at one end of said chamber, means for feeding a heated combustible mixture to said chamber comprising a supply pipe extending .through the chamber and having its discharge opening in the chamber adjacent said igniter.

4. A heater plug comprising amain combustion chamber and an extension forming a circuitous outlet passage about the combustion chamber.

5. The combination with an engine intake pipe, of a heater plug adapted to be. inserted Within said pipe, said plug comprising a main combustion chamber and an extension formingv a circuitous outlet passage around the combustion chamber and Within said pipe.

6. The combination with an engine intake immediately pipe, of a heater device comprising two parts extending into said pipe from opposite sides and telescoped together, the inner of said parts forming a combustion chamber, and the'outer of said parts having radiating fins in the intake pipe.

7. The combination with an engine intake pipe, of a heater device comprising two parts extending into said pipe from oppo site sides and telescoped together, means for feeding a combustible mixture into said device, and means for igniting the mixture therein. y

8. In. a hydrocarbon motor, the combination with an intake pipe of substantially square cross section, of a combustion heater device connected to discharge into said pipe and comprising two telescoped parts extending into the pipefrom opposite sides, each of said parts having fiangesy arranged against the two ,opposite fiat sides of the intake pipe, and meansfor feeding a combustible mixture to said heater device.

9. The combination with an engine intake pipe, of a heater device comprising te1escoped tubular parts arranged in the intake pipe so that the mixture passing therethrough will come in Contact with the exterior of the outer of saidtubular parts, the inner of said tubular parts forming a combustion chamber and the space between the parts forming the outlet passage therefrom.

10. Thecombination with an engine intake pipe, of a heater device comprising two telescoped pieces, said device being arranged in the inftake pipe so that the mixture passing therethrough will dome in contact with the exterior of the outer of saidtubular parts, thev inner of said pieces forming a combustion chamberpand lthe space between the pieces forming the outer passage from said chamber, and said device comprising a third piece secured to one of the telescoped pieces and forming a continuation of the combustion chamber.

In testimony whereof I aiix my signature;

LIONEL M. WooLsoN.