US1792959A - Auxiliary air intake for internal-combustion-engine intake manifolds - Google Patents

Description

Feb. 17, 1931. s. B. ALCQRIZA ,95

AUXILIARY AIR INTAKE FOR INTERNAL COMBUSTION ENGINE INTAKE MANIFOLDS Filed Nov. 18, 1929 3 Sheets-Sheet 1 A tiorney s. B. ALCORIZA Feb. 17, 1931.

AUXILIARY AIR INTAKE FOR INTERNAL COMBUSTION ENGINE INTAKE MANIFOLDS V 3 Sheets-Sheet 2 Filed Nov. 18, 1929 Attorney Feb. 17,1931. I s. B. ALCORlZA 1,792,959

AUXILIARY AIR INTAKE FOR INTERNAL COMBUSTION ENGINE INTAKE MANIFOLDS Filed Nov. 18. 1929 s Sheets-Sheet 3 In venior A itomey Patented Feb. 17, 1931 UNITED STATES PATENT OFFICE SOFRONIO B. ALCORIZA, OF STOCKTON; CALIFORNIA Application filed. November 18. 1929. Serial No. 405,007.

a. portion of the exhaust pipe for heating the air and delivering the same to the intake manifold.

A still further very important object of the invention resides in the provision of a device of this nature which is simple in con struction, inexpensive to manufacture, easy to assemble anddisassemble for repair and replacement purposes, thoroughly efficient and reliable in use and operation, and other- 2 wise well adapted to the purpose for which it is designed.

With. the above and numerous other objects in view as will appear as the description proceeds, the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing:

Figure 1 is a side elevation of an internal combustion engine showing my improved device placed thereon,

Figure 2 is a longitudinal section through the device.

' Figure 3 is a perspective view of the valve,

Figure 4 is a perspective view of the stem bushing,

Figure 5 is a sectional view through the exhaust pipe and hot air collector thereon,

Figure 6 is a sectional view taken substantially on the line 6 6 of Figure 2,

Figure 7 is an end elevation of he device,

Figure 8 is a longitudinal section through the nipple leading from the hot air collector, and

Figure 9 is a perspective view of the detac-hable head of the device.

Referring to the drawing in detail it will be seen that the numeral 5 denotes a cylinder with a relatively thick head 6 at one end and a relatively thin head 7 at the other end. The

head 7 has an opening 8 therein beveled at its edges to form valve seat to receive valve 9 having a stem 11 which is slidable through a bore in the center of the head 6, the outer end of the bore being countersunk and threaded as indicated at 10 to threadedly receive one end of a bushing 11 which has a square bore to receive the square portion 12 of the valve stem 11, the square portion 12 merges into a threaded portion or extension 14 extending through a central opening in a bar15.

A detachable cone shaped head 16 is fastened by means of threaded ends of rods 17 to the end of-the'cylinder 5 adjacent head 7 and these rods 17 extend beyond the head 6 and have the bar 15 slidable thereon.

Springs 18 are disposed about the rods 17 impinging against the bar 15 to hold it against nuts 19 on the extension 14 and normally holdingthe valve 9 closed so that to open the valve 9', 'it is necessary to overcome the tension of the springs 18 and of course this tension may be varied by manipulation of the nut 19 as will be quite apparent.

A pipe 22 through the apex of the coneshaped head 16 and tapped into one side of the intake manifold 23 of the engine. 1 A pipe 24 is tapped into the center of the cylinder 5 and is coupled with a nipple 26 having a strainer 27 incorporated therein. p A U-shaped air collector 27 is formed with flanges f at the ends of its bight b so that the bight b is held in spaced relation to a portion of the exhaust pipe 28. One side a of the collector 27 is curved concentrically with the small portion of the pipe 28 while the other side is straight and has a screw 29 extending therethrough and engaged in the pipe 28.

From the above detailed description it will be seen that when the suction inthe intake manifold 3 is sufliciently great to unseat the valve 9 against the tension of the springs 18 air will be sucked into the collector 27 and heated by the exhaust manifold 28 anddrawn through the pipe 24 into the cylinder 5, through the head 16 and pipe 22 into the intake manifold as needed.

Obviously by a proper adjustment of the nuts 19, theproper eliioiency may be obtained or economy of gas consumption and maximum power.

It is thought that the construction, operation, utility and advantages of this invention will now be quite apparent to those skilled in this art without a more detailed description thereof.

The present embodiment of the invention has been disclosed in considerable detail merely for the purposes of exemplification since in actual practice it attains the features of advantage enumerated as desirable in the statement of the invention and the above description.

It will be apparent that changes in the details of construction, and in the combination and arrangement of parts may be resorted to without departing from the spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages.

Having thus described my invention, what I claim as new is:

1. A device of the class described comprising a cylinder having a head at one end formed with a central bore and a head at i he other end formed with a valve seat, a valve associated with said valve seat and having a stem slidahle through the here, an auxiliary head on the cylinder adjacent the head with the valve seat, said auxiliary head tapering a my from the cylinder and having a pipe engaged therein to be tapped into an intake manifold, rods threadedly engaged with the cylinder and the auxiliary head to assemble the parts together and extending along 1' 2e cylinder past the head "with the bore, a bar slidable on said rods and having an opening through which the valve stem extends, nuts on the valve stem with which the bar is adapted to abut, and springs on the rods impinging against the bar to hold the same in abutment with the nuts and to normally hold the valve seated, and intake means for the cylinder.

2. A device of the class described comprising acylinder havin a head at one en; formed with a central iore and a head at the other end formed with a valve seat, a valve associated with said valve seat and having a stem slidahle through the bore, an auxiliary head on the cylinder adjacent the head with the valve seat, said auxiliary head tapering away from the cylinder and having a pipe engaged therein to be tapped into an intake manifold, rods threadedly engaged with the cylinder and the auxiliary head to assemble the parts together and extending along the cylinder past the head with the bore, a bar slidable on said rods and having an opening through which the valve stem extends, nuts on the valve stem with which the bar is adapted to abut, and springs on the rods impinging against the bar to hold the same in abutment with the nuts and to normally hold the valve seated, intake means for the cylinder, an intermediate portion of the valve stem being square, and a bushing threaded in the bore of said head having a bore and the bore of the bushing being squared to slidably receive said square portion of the valve stem.

3. A device of the class described comprising a cylinder having a head at one end formed with a central bore and a head at the other end formed with a valve seat, a valve associated with said valve seat and having a stem slidable through the bore, means for connecting the cylinder at its valved end with an intake manifold, rods engaged with the cylinder and extending along the cylinder past the head with the bore, a bar slidable on the rods and having an opening through which the valve stem extends, nuts on the valve stem with which the bar is adapted to abut, and springs on the rods impinging against the bar to hold the same in abutment with the nuts and normally hold the valve seated, and intake means for the cylinder.

in testimony whereof I affix my signature.

SOFRONIO B. ALCORIZA.

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