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Патент USA US2412260

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De@- 1o, 1946.
C. W. HALL
2,412,260'
lAIR cooLED ROTARY VALVE'
Filed March 20, 1945
INVENTOR. '
CHA/QMS h( HALL.
Patented Dec. 10, 1946
2,412,260
' UNITED STATES 4wirENr orifice
` AIR-000ml) ROTARY VALVE
Charles> W. Hall', Denver, Cold., assìgnor- to`
Malcolm S. Losey, Denver, Colo.`
`AplzilicatíionL March 20, 1945, Serial N0. 583,803
3 Claims. (Cl.» RSL-»190)
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This" invention relates to a rotary valve for' in
ternal: combustion' engines and has' for' its princi
pal' object the provision of a Valve of this rchar
acter through which cooling air can be circulated
eaèh cylinder. The Valve seats pass entirely
through the heads I4 and are' closed at their tops
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byniear'ísA4 of an air- manifold I'1`. A cylinder’ port
for 'maintaining the valve at proper operating
I8 communicates between each of' the cylinders
o'f the cylîr’ide'i"v block’ I0 and'v î'tslvalve seats inthe
temperature.
h'e'ad
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Other' objects of the invention are: to provide
The Valve IG is Cìip-shapéd-that is',l it has an
a highly ein'cien‘t drive mechanism for a valve
_open top and a' clcs'e‘d bottornarid maybe rotated
in.' any desired manner. As illustrated, itis pro-_
10 vided with a ring worm gear> r9 which is. 'p 'ivén
of' this character;v to provide eilic'ient lubricating
means for the face' of the valve which will dis
from a worin 2u.Y The gear i9 rests against a
tribute lubricant uniformly' over the face, which
will not-~ wear grooves in the face, and which will
shoulder 2'I on'the valve' i6 'and is' keyed, 'tothe'
automatically close' oii the oil' supply during the
latter as shcwn at 2'2.
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intake stroke' of the engine to prevent oil from
The valve I6 contains two curved' passage
15 tribes., an intake tube' 24,. and> an' exhaust tube
being drawn from the supply by vacuum.
25, which communicate through eccentrically" po'
Other objects and advantages reside in the de
sitioned openings` in the bottom of the- vaIvje I6'
tail construction of the invention, which is de
signed for simplicity, economy, and. efficiency.
positioned to alternately aiign with the cylinder
p'o'rt' I8 as the' valve rotates. Both tubes exit
lowing description.
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20 through the s'i'de Wall of the valve, the tube 2‘5
being in alignment with an intake0 -port 26, and
In the following detailed description of the
the tube 25 being inalignment with an exhaust
invention, reference is" had to the accompanying
drawing which formsa partv hereof. Like numer
port 21. The Valve I'6` is so timed' that the tube
als refer to' like parts in all views ofthe drawing
2'4" Will connect the port 26 to the cylinder ,port
and. throughout Ythe description.
I'8` during the' intake stroke' of the piston- II, and
In~> the drawing:
the’ tube 25 will' connect the port 21 with the
Fig. l is a vertical section through the head
cylinder port I8 during the exhaust stroke of the
of a typical internal combustion engine cylinder
piston II.
illustrating the improved valve in place thereon;
An air intake passage 28 and an air discharge
Figs. 2 and 3 are horizontal cross-sections 30 passage 29 are formed in the air manifold I1.
These will become more apparent from the fol
through the valve, taken on the lines 2--2 and
The intake passage communicates With a down
3_3, Fig. 1, respectively; and
wardly extending nozzle 30 axially positioned
Fig. 4 is a detail View of a sealing ring employed
within the valve I6. The outlet passage 29 com
municates through air openings 3| with the hol
In prior rotary valves it has been found that 35 low interior of the valve I6 around the nozzle 30.
the incoming gas becomes so super-heated in
During the operation of the engine a constant
passing through the valve that it lowers the etli
supply of cool air is forced into the passage 28
ciency of the engine due t0 excess preliminary
and blown against the bottom of the valve from
expansion. 'I'his invention is designed to obviate
the nozzle 30, rising from along the Walls there
this objection by providing means for cooling the 40 of to cool the latter, and thence discharging
Valve and for shortening the path of the incom
through the passage 29. This provides an eni
ing gas through the Valve. This is accomplished
cient cooling system for the Valves at all times
during the operation of the motor. It is preferred
by avoiding all masses of material in the valve
itself, and by providing means for constantly cir
to form cooling fins 32 on the bottom of the valve
culating cooling air throughout the entire inte 45 to assist in the heat transfer.
The valve is constantly urged upwardly against
rior of the valve.
One means for accomplishing this is illustrated
a thrust bearing 33 by means of a leaf spring 34.
in the drawing in which a cylinder block is indi
The spring acts against a plunger 35, which in
turn acts against an oscillating oil-distributing
cated at I0, with its piston at II, water jacket
at I2', and spark plug at I3. A valve head I4 is 50 bar 36 to force the latter against the bottom of
mounted on the cylinder block Ill, and this may
the valve. The bar 36 is provided with a series
also be provided with water jacket space I5, if
of oil slots 31 which intermittently align with oil
desired. The head I4 is formed with cylindrical
holes in the plunger 35.
valve receivingseats in each of which a rotary
The bar 36 is oscillated by means of an> eccen
valve I6 is mounted, there being one valve for 55 tric pin 38 in the bottom of the valve I6. This
in the improved valve.
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2,412,260
pin is positioned eccentrically of the axis of the
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perfect mixture of the gas and air. This perfect mixture is forced into intimate contact with
the ignition spark so that highly eñicient com
valve and extends into a receiving slot 4I in the
bar 36 so that during the intake stroke of the
motor the oil holes 31 will be drawn out of align- `
bustion is attained.
While a specific form of the improvement has
been described and illustrated herein, it is de
ment with the oil holes in the plunger 35 to pre
vent sucking in of lubricating oil. During the
remainder of the rotation of the Valve, the oil
holes will be in alignment to supply lubrication
to the bottom of thevalve. The oscillation of the
bar 36 prevents wearing circular grooves’in the
bottom of the valve, and uniformly distributes
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sired to be understood that the same may be var
ied, within the scope of the appended claims,
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without departing from the spirit; of the inven
tion.
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Having thus described the invention, what is
the lubricating oil over the surface thereof. The jg> ` claimed and desired secured by Letters Patent is:
oil is supplied from an oil pressure »line u3S,
_` _1,A A” rotary valve for an internal combustion
engine comprising: a hollow cylindricalvalve po
through a stem 40 on the plunger 35.
'I'he cylinder port I8 is provided with ak sealing
ring of a design which will not only seal the port
I8 to the Valve and to the cylinder block I0,
15 sitioned and arranged to control the intake and
exhaust gases to a cylinder of said engine; an air
intake passage discharging into the hollow in
but will also exert an upward push on the `>Valve ' terior of'said valve; an air discharge passageV
communicating with said hollow interior to carry
I6. This ring comprises an annular, truncated:
conical ring member 42 fitting a recess inthe 20 the air therefrom; and a discharge nozzle on said
blockl Il conforming tothe contour of the _ring
member 42. The ring member 42 is provided with
„a plurality of radially expansible sealing rings
'43„both in its cylindrical and in its conical sur
intake passage extending axially into ,saidvalve
tojdirect the air toward the bottom there'ofçll'H ,
surface' tends to force the ring member 42 up
>>2. A rotary valve for an internal combustion
engine comprising: a hollow cup-shapedv rotary
valve;- Apassages positioned in said Valve to alter
nately communicate with a cylinder4 of saiden
wardly .into.snug, gas-tight engagement with the
bottom ‘ofjthevalva The purpose of the come
bination of a cylindrical surface and a conical
thelûpentop ofrsaid .valve and discharging'w’ithin
the interior thereof; and an air outlet passage
faces.'V The expansion of rings inthe conical ,
gine; . an _air intake passage extending` axiallyvinto
surface on the _ring resides inthe fact that the f»
Cylindrical „surface will always maintamthe ring
in__açcurate axial alignment with the cylinder
communicating with said hollow interior.-
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port ‘ I8‘While the conical surface imparts its up
v3. _A rotary valveforan internal .combustion
engine comprising: ahollow Vcylindrical valve po,
sitioned Vand arrangedto control the >intake and
ward _thrust tothe ring.V Y .
exhaust gases to a cylinder of »said-engine; an
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, ’,Itfi’sldesiredto call attention to the unusual
oil-distributing bar resting-` againstithe' bottom
shapeofthe head of the piston II and the head
òf its cylinder. The head'ofjthe piston is dome
shaped with a pocket 44 formed therein.` The
pocket is positionedat one side of therhead, be-f
neath the cylinder Aport I8 and opposite the spark
plug I3'. VThe remainder of the dome-shaped head
of said valve; a studsprojecting eccentricallyvfrom
said valve into said bar to impart a reciprocatory
motion to said bar, there .being yoil-distributing
passages through said bar.;.' a' plunger` resting
against said bar and having -oil holes registering
40
' with the ñrst distributing passages; spring means
ñtsclosely to the head of the cylinder when the ‘
for urging said plunger against- said bar to main
piston is in its uppermost position. y ’
tain the latter against the bottom of said Valve;
Thisforces the gas into a small chamber
formed by the pocket 44 and the port I8 where
it` is subjected to great turbulence resulting in
and means for supplying oil to the oil holesin .
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said plunger.
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vCHARM-is W. HALL.Y
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