US1699725A

US1699725A - Hydrocarbon motor

Info

Publication number: US1699725A
Application number: US432823A
Authority: US
Inventors: Jesse G Vincent
Original assignee: Packard Motor Car Co
Current assignee: Packard Motor Car Co
Priority date: 1920-12-23
Filing date: 1920-12-23
Publication date: 1929-01-22
Anticipated expiration: 1946-01-22

Description

Jan. 22, 1929. 1,699,725

' J. G. VINCENT HYDROCARBON MOTOR Filed Dec. 23; 1920 a Sheets-Sheet 1 Jan. 22, 1929. 1,699,725

J. G. VINCENT HYDROCARBON MOTOR Filed Dec. 23. 1920 a Sheets-Sheet 2 Jan. 22, 1929. 1,699,725

J. cs. VINCENT HYDROCARBON MOTOR Filed Dec. 23. 1920 3 Sheets-Sheet 3 Jesse finwnb,

Patented Jan. 22, 1929.

onl-rro srarrs ear-em orrma .rnssn G. vnronnr, on DETBQIT, Mrcnr ie are nearest MQTGR can W PANY, F DETBQ T, MICHIG ceases-ea n as molassesnrmie esacs m ses errlieati fi ed Dese This invention relates to hydrocarbon motors and particularly to the construction of the cylinder block and the means for conveying the mixture from the carburetor to the motor cylinders, as well as for heating the lr ture One of the objects oi the present invention is to provide a novel and particularly advantageous system of intake passages for the miature of a hydrocarbon motor.

Another object Of the invention is to provide both exhaust heating means 2 id combustion heating means, of a novel character for raising the temperature of? the mixture o l a hydrocarbon motor.

Another object of the invention is to provide a hydrocarbon motor with aligned intake passages fed by separate horizontal passages which will prevent surging of the mire 29 ture from one end of the motor towards the other. a

Another object of the invention is to provide intake elbow of novel form with a combustion heater discharging thereinto and 3 receiving its mixture from the vertical passage of the elbow and below the throttle valve hereof Other objects of the invention will appear from the following desori Jtion taken in connection with the drawings, which form a partof this specification, and in which: Fig. 1 is a side elevation of a hydrocarbon motor embodying this invention;

Fig. 2 is a vertical transverse section through the motor shown in Fig. 1 and substantially on the line 22 of Fig. 1 as well as on the line 22 of Fig. a;

F 3 is a slightly enlarged vertical secti n on he n t 2; an

F t is a horizontal section substantially on the line il; 4: ot' 2,

Referring to the drawings 10 represents a cyl nder block of usual construction in so far as the cylinders 11 and other conventional parts are concerned. it detachable head 12, a spark plug 15 andan intake valve lei with ralrc springs 15 are shown particularly in Fig. 2.

'llhis cylinder block is preferably formed with six cylinders and the motor is of the usual tourcycle type with the cylinders hiring in the order of 1%5 -3-,6.2T4; or so that the egtplo jump. leach and forth from one the first three cylinders to one or the lattil 1920. seas nsa a ter three and then to the first tln'e-e, etc. through the complete cycle.

With such firin order, in. a six cylinder mot-or it is found that if the six intake ports are connected by a single intake passage e2;- tending longitudinally of the block there will bemore or less surging oi? the mixture from one end of the passage towards the other because of the opening of an intake valve in the front half as the block followed by the opening of an intake valve in the rear half of the block and then .the opening o'l intake valve in the front half ofthe block again, and so on. The present invention pro vents this surging of the mixture by 'lforining two aligned intake passages in the cylinder block, which passages connect with the various intake ports of the cylinders and have their inlet ends arranged adjacent to each other near the middle of the block. The mixture is then led to the inlet ends 01; these intake passages by two elongated horizontal passages so that the mixture can not get from one of the cylinder bloclg intake passages to the otl ler without going all the way'hack through one of the horizontal; passages and then forward through the other one. This 0i course is practically impossible and the surging is thereby prevented.

The two aligned intake passages of the cylinder block are indicated at 16 in 2 and l, and it will be seen that their inlet ends 17 are arranged adjacent to each other at the middle of the cylinder block. These passages 16 communicate with the inlet portsltl by inclined passages 19, one of which is shown in Fig. 2.

Each of the intake passages 16 is rectangular in cross section as are also their inlet ends 17, and adjacent the ends 1? the passage makes a right angle bend in substantially horizontal plane. 'lhe flat sides of the passage merge into the liat top and bottom walls by lilletsor circular arcs of short radius and these fiat sides make sharp bonds with similar arcs 015 short radius whereby the mirturo from the carhnretor travels through the paswa 2 and n 1? and t ikes th v rt flat urfa e at the ben and a rf c s no ms-.1 to the center line. Qt the passa anterior to the bend, the nixt re eon tinnes in t h i t P th to. he val-red late e res or the engines fi mm ei at aei Wi h isl ease t these intake passages are two horizontal passages indicated generally atQO and the passages are not brought together until the end of a partitionis reached at 21.

A part of each of the horizontal passages 20 is formed transversely in an integral portion 22 of an exhaust pipe or manifold 23 which extends alongside the cylinder block and is secured to it by branches 24 and nuts 25. The branches of this exhaust manifold communicate with the exhaust ports of the motor cylinders.

The outer part of each of the horizontal passages 20 is formed in an elbow 26, which is attached to the exhaust manifold 23 as by bolts 27. Thus the elbow 26 may be said to have two horizontal passages 28 forming the outer ends of the horizontal passage 20.

The vertical branch of the elbow 26 is formed with a single passage 29 in which there is a throttle valve 30 for controlling the quantity of mixture passing to the motor. To the lower end or this vertical branch of the elbow is secured a carbm'etor 31 l'liitVll'lg a Venturi tube 32 and a tool nozzle 33 cooperating therewith. The carburetoralso comprises afloat chamber as, a main air intake 35, and an auxiliary air intake 36. Any other conventional form of carburetor may be used in lieu of the one illustrated.

Formed separately or as an integral part of the elbow 26 is a combustion heater device 37. As shown, it comprises a combustion chamber 38, a jacket 89 surrounding a part of the elbow 26, a spark plug for firing the mixture, an inlet port l1, and a glass window 2 for observing the burning of the mixture in the chamber 38. The outlet for the burned mixture from the combustion heater is indicated at43 at the juncture between the vertical passage 29 of the elbow and the horizontal pas sages 28 thereof. It is located at the lowest part of the jacket 39 whereby any liquid fuel that may condense in the chamber will be discharged immediately through this port is and not collect in the chamber. Thus the mixture being drawn up through the elbow meets the hot burnt gases drawn in through the port 43 and. is materially heated thereby. The 1nixture is also heated indirectly through the walls oi the jacket 39 as it passes to the motor.

Moreover, after the motor gets into operation the mixture is further heati-wl by reason. of the proximity of the horizontal passages 20 to the exhaust manifold 23.

In order that the combustion heater may operate in the most desirable way, which is at its maximum with the throttle closed and at its minimum with the throttle open, the mixture withdrawing means for the combustion heater is arranged below the throttle valve 30, and as shown, this mixture withdrawing means comprises a conduit 4st having one or more inlet ports 45, in the stem of the throttle valve. The ports 45 are so arranged that they open on the under side of the throttle when the latter is in closed position as shown in 2. In Fig. 3 it will be seen that the conduit extends to the outer end of the stern of the throttle valve and a pipe 46 leads from 4- diat point to'the combustlon heater. In B 1g. 1 this pipe 4:6 is shown as extending upwardly to the inlet port 41 of the combustion heater 37.

By this arrangement of the throttle valve in the vertical branch of the elbow 26, and the placing of the mixture withdrawing means within the throttle valve imn'iediately above the carburetor, the division or partition between the horizontal passages 20 may extend all the way from the motor cylinder block to the turn in the elbow to thereby obtain the non-surging effect hereinabove described.

It will be understood that various terms of the invention other than those described above may be 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 Pattent is: p

1. In a hydrocrabon motor, the combination with a cylinder block having a aligned intake passages with their inlet ends adjacenteach other near the middle 01 the block, of an exhaust manifold connected to said cylinder block and having transverse intake passages former therein and connected to the inlet ends of said intake passages, and a carburetor connected to said exhaust manifold and communicating with said transverse passages.

2. In a'hydrocarbon motor, the combination with a cylinder block having aligned intake passages with their inlet ends adjacent each other near the middle of the block, of an exhaust manifold connected to said cylinder block and having transverse intake passages formed therein and connected to the inlet ends of said intake passages, an intake elbow connected to said exhaust manifold and having passages communicating with said transverse passages, and a carburetor connected to said elbow.

3. .In a hydrocarbon motor, the combina. tion with a cylinder block having aligned intake passages with their inlet ends adjacent each other near the middle oi. the block, of means lira-mi ug elongated li.o1'iz )11tal passages connecting respectively with the inlet ends of said intake passages, means forminga ver tical passage in communication at its upper end with the outer ends of both of said horizontal passages, a carburetor connected to supply mixture to said vertical passage, a combustion heater at the juncture of said vertical and horizontal passages, and means in said vertical passage for withdrawing part of the mixture passing therethrough and feeding it to said combustion heater.

In a hydrocarbon motor, the combina- 'tion with a cylinder block having intake passages, of an intake elbow having a vertical passage and two horizontal passages communicating therewith, means connecting said horizontal passages with the intake passages of the motor, a carburetor connected to the lower end of the vertical branch of said elbow, at eombustion heater on said elbo and having its discharge opening in communication therewith, a throttle valve in the vertical passage of said elbow above said can buretor, and means adjacent said throttle valve and opening into the vertical passage below said throttle valve whenthe latter is in closed position, which said latter means is adapted to withdraw a part of the mixture passing through said elbow and feeding it to said combustion heater.

5. ln a hydrocarbon motor, the combination with an intake elbow having vertical and horizontal passages, of a carburetor connected to the lower end of the vertical passage, a combustion heater having its outlet in conununication with said elbow, a throttle valve in said vertical passage above said carburetor, said throttle valve having a conduit communicating with the vertical passage in the elbow below said throttle valve when the latter is in closed position, and means connecting said throttle conduit with said COIRlHlSlJlOH heater for carrying mixture from the vertical to said heater.

6. In a hydrocarbon motor, the combination with an intake elbow, of a combustion heater comprising a chamber forming a jacket on the outer part of the turn in said elbow, said chamber having an outlet port from its lowest part into the elbow.

7. In a hydrocarbon motor, the combination with the carburetor andthe valved intake ports of the engine, of an intake conduit extendingbetween-the carburetor and the valved ports, a section oi said conduit having a single passage of substantial size, said passage making a sharp right angle bend in a substantially horizontal plane and being rectangular in cross section with flat sides merging into flat top and bottom walls by fil lets or circular arcs of short radius and with said flat sides making the sharp bend with similar arcs of short radius, whereby the mixture strikes a vertical flat surface at the bend normal to the center line of the passage anterior to the bend.

in testimony whereof I al'iix my signature.

JESSE G. VlNGEN'l.

passage of the elbow