US1605214A

US1605214A - Vaporizer for internal-combustion engines

Info

Publication number: US1605214A
Application number: US640600A
Authority: US
Inventors: William A Brush
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-05-21
Filing date: 1923-05-21
Publication date: 1926-11-02
Anticipated expiration: 1943-11-02

Description

Nov. 2 1926. 1,605,214

I w. A. BRUSH 51 nuewcoz 3722121771 fl. Err/ 71 Patented Nov. 2, 1926.

WILLIAM A. BRUSH, 0F DETROIT, MICHIGAN.

VAPORIZER FOR INTERNAL-COMBUSTION ENGINES.

Application filed May 21, 1923. Serial No. 640,600.

The invention relates to apparatus for the formation of homogeneous cmnbustible mixtures for internal combustion engines and consists in certain novel features of construction as hereinafter set forth.

One of the objects of my invention is to produce a vaporizer which will collect liquid fuel falling out of suspension between the carbureter and the engine cylinder and to vaporize the same without materially heating the gaseous mixture. Another object is to provide a construction which deflects the mixture towards the vaporizing means during the slow speed operation of the engine but which is automatically operated at the higher engine speeds to allow an unobstructed passage of t e mixture. I

To this end I have provided the intake manifold with an expanded chamber, the walls of which are provided with downwardlv sloping pockets that are heated by the hbt gases from the exhaustmanifold Within the expanded chamber is placed a conical shaped deflector which is arranged for longitudinal movement through the chamber and is actuated by the gaseous stream passing therethrough. The deflector forms in effect with the intake manifold a variable venturi directing the fuel mixture towards the walls of the chamber where any unvaporized fuel is collected in the pockets, heated and reintroduced into the gaseous stream. At the higher engine speeds, how ever, the deflector is automatically actuated by the flowing mixture allowing a larger opening for the passage'of the gases. In this manner the deflector regulates the amount of vaporization taking place, the maximum being at the lower engine speeds when the most difliculty is usually encountered in obtaining a homogenous mixture in the engine cylinder. In the drawings Figure 1 is a sectional view of my improved apparatus.

In detail, A represents an intake manifold of an internal combustion engine which is provided with an enlarged chamber B having a series of downwardly sloping annular pockets C in the walls thereof. D represents a jacket surrounding the annular chamber B through which the exhaust gases are conducted for heating the chamber.

E is a stem arranged centrally in the chamber B and sup ortedin the fixed bearing F which is pre erably in the form of a have spider member G in the manifold. Slidably mounted upon the stem F is a conicalv deflector H which normally rests upon a collar I at the bottom of'the stem F. The deflector H forms with the inlet conduit J a restricted passage K through which the fuel mixture passes and is deflected thereby towards the walls of the chamber B.

In the operation of the apparatus the mixture from the carbureter L carrying the liquid fuel in suspension is deflected by the conical deflector H towards the walls of the chamber B and is also expanded due to the larger cross sectional area of the chamber. Any liquid fuel contained in the mixture is, therefore, deposited upon the walls of the chamber and is collected in the pockets C where the heat from the exhaust gases vaporizes the liquid and reintroduces it in the gaseous stream.

' At the higher engine speeds, however, the

force of the gaseous current passing through the manifold will raise the deflector H to the position shown in the dotted lines thereby increasing the effective area between the de flector and the walls of the chamber. Consequently there is less restriction to the pas sage of the gases and less of the liquid fuel dro s out of the mixture.

T us with my improved construction I provided an apparatus for directing the mixture towards the vaporizing means at the lower en ine speeds while providing a free passage for the higher engine speeds thereby allowing full charge to be introduced into the engine cylinders. Very little heat is conducted to the gaseous stream for the fuel which is vaporized in the pockets C tends to cool the fins with the result that the volumetric efliciency of the engine is not impaired.

What I claimas my invention is 1. The combination of a fuel mixture induction conduit having an expanded chamber therein provided with a series of downwardly sloping pockets, a movable member within said chamber actuated by the gaseous stream passing therethrough to variably restrict the inlet passage to said chamber, and means for heating the liquid fuel collected in said pockets and reintroducing the vapor into the gaseous stream.

2. The combination of a fuel mixture induction conduit having an ex anded chamber therein, a deflector mova 1e longitudinally within said conduit and cooperating therewith to variably restrict the passage of the fuel mixture, said deflector being actuated by the gaseous stream, a series of annular pockets in the walls of said expanded chamber arranged to collect and trap a portion of the liquid fuel falling out of suspension, and means for heating the trapped fuel to reintroduce the vapor into the main stream. f

3. Thecombination of a fuel mixture induction conduit, a conical deflector movable longitudinally Within said conduit and cooperating therewith to form a variable restriction to the passage corresponding to the velocity of the gaseous stream therethrough,

and means in the path of the deflected stream for vaporizing the liquid fuel thrown out of suspension.

4.. The combination of a fuel mixture induction conduit, a conical deflector movable longitudinally within said conduit and cooperating therewith to variably restrict the passage of the fuel mixture, said deflector being actuated by the gaseous stream, means in the path of the deflected stream for trapping the liquid fuel thrown out of suspension and means for heating the trapped fuel to reintroduce the vapor into the main stream.

5. The combination of a fuel mixture indurtion conduit, a conical deflector movable longitudinally within said conduit and cooperating therewith to variably restrict the passage of the fuel mixture, said deflector being actuated by the gaseous stream, a series of pockets in the walls of said con duit in the path of the deflected stream for trapping the liquid fuel thrown out of suspension and means for heating said pockets to vaporize the collected fuel Without appreciably heating the gaseous portion of the mixture.

In testimony whereof I aflix my signature.

WILLIAM A. BRUSH.