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Патент USA US2409142

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Oct. 8, 1946. ‘
1.. MARGoLls
' 42,409,141
Filed Aug. 30, 1944 `
2 Sheets-Sheet 1
fa loarTJ 62.
3 x Wenko@
Lows MAFeâQL/S
o@ 8,1946.
Filed Aug'. so, 1944
2 sheets-sneer 2
Patented Oct. 8, 1946
Louis Margolis, Washington, D. C., assignor of
five per cent to Eugene Berger, Washington,
D. C.
Application August 30,'1944, Serial No. 551,877
1 Claim. (Cl. 12S-14)
This invention relates to rotary internal com
bustion engines.
An object of this invention is to provide a rotary
engine having a substantially toroidal cylinder
and a plurality of spring-pressed sliding abut
ments carried by the casing.
vAnother object of this invention is to provide
journalled in bosses I8 and I3 carried by the
heads I2 and I3, respectively, the shaft I1 being
sealed with respect to the bosses. or bearings I8
and I9 by packing glands 2U and 2I respectively.
A bearing sleeve 22 is positioned within the boss
I8 engaging about the shaft I1 and a second bear
ing sleeve 23 is positioned within the boss I3
and engages about the shaft I1 inwardly from
an engine of this type wherein air is compressed
the gland 2I.
and discharged into a tank on a portion of the
A rotor generally designated as 24 is rotat
stroke of the rotor so that the compressed air 10
ably mounted within the casing I0 and includes
may be’returned to the firing chambers at the
a central hub 25 which is carried or otherwise
proper time mixed with the desired fuel.
ñrmly secured to the shaft I1, as indicated at
A further object of this invention is to pro
2B. The rotor 24 includes an outer cylindrical
vide an engine of this type embodying an im
21 which rotatably engages in annular
proved valve construction which is actuated by 15 recesses 28 and 29 formed in'the’inner sides of
the leading side of the rotor, and the leading
the heads I2 and I3, respectively. The heads I2
side of the rotor is of cam shape so as to open
and I3 are provided on the opposed edges thereof
the intake valve in properly timed relation.
with sealing rings 30 so as to seal the cylindrical
A further object of this invention is to provide
an improved rotor which may be formed with a 20 member 21 within the recesses 28 and 29.
A pair of annular lubricating channels 3I and
plurality of pistons so that a plurality of power
32 are formed in the heads I2 and I3 in a posi
strokes will be provided for each revolution. In
tion confronting the inner side of the cylindrical
the form disclosed the rotor is formed with four
rotorl member 21 for providing proper lubrication
pistons and as there are two power positions for
this member. The rotor 24 also includes a
each piston, there will be eight power strokes for 25 for
plurality of circumferentially spaced apart pis
each revolution of the rotor.
tons 33 which are secured to or formed integral
With the foregoing objects and others which
with the cylindrical member 21. The heads I2
may hereinafter appear, the invention consists
and I3 and the cylindrical casing member II
of the novel construction, combination and ar
rangement of parts as will be more speciñcally 30 form a substantially toroidal cylinder 34.
In practice the cylinder 34 is of transversely
referred to and illustrated in the accompanying
elongated configuration with substantially semi
drawings, wherein is shown an embodiment of
circular cylinder portions 35 and 36 formed in
the invention, but it is to be understood that
inner sides of the heads I2 and I3. A liner
changes, modifications and variations may be re
sorted to which fall within the scope of the inven 35 31 is disposed on the inner side of the cylindrical
casing member II and semi-cylindrical liners 38
tion as claimed.
39 are carried by the heads I2 and I3 in the
In the drawings:
cylinder portions 35 and 3G thereof. Each pis
Figure 1 is a vertical sectional view of a rotary
internal combustion engine constructed according
to an embodiment of this invention,
Figure 2 is a fragmentary sectional view taken
on the line 2_2 of Figure 1, and
ton 33 has mounted therein a ring or sealing
40 member 40 which is of split construction being
ysemi-circular at the outer ends and extending
straight across the cylindrical member II. Each
piston 33 is formed at its trailing end with a
concave surface 4I merging into the periphery
on the line 3-3 of Figure 1.
45 of the cylindrical member 21 and is formed at its
Referring to the drawings, the numeral I0
leading side or end with a convex surface 42.
designates generally a casing which is of cylin
The concave rear surface 4I forms a moving
drical form having a cylindrical side wall I I and
abutment for engagement by the explosive gases
opposite heads I2 and I3 secured to the side
when the rotor is in operation.
wall II by fastening members |43. The heads
The casing I0 has secured thereto and pro
I2 andl I3 are formed with passages I4 and I5,
jecting from the cylindrical member II a pair of
respectively, for receiving a cooling medium in
housings 43 and 44. The housings 43 and 44 are
the form of liquid and the side wall II is also
of like construction and each includes a hollow
provided with a plurality ‘of circumferentially
housing member 45 formed with an inner ñange
spaced apart passages I6 through which the cool
46 secured by fastening members 41 to the cylin
ing medium is adapted to pass. A shaft I1 is
' Figure 3 is a fragmentary sectional View taken
drical member II. The cylindrical member || is
formed with an opening 48 communicating the
cylinder 34 with the housing 43, and a sliding
abutment 49 in the form of a iiat plate slidably
engages through the opening 48.
the fuel will be sprayed into and mixed with the
incoming air, the latter being under predeter
mined pressure. A combustion chamber 9| is
formed adjacent each intake port 63 and an ig
niter 92 in the form of a spark plug is positioned
in each combustion chamber 9| for igniting the
.combustiblegfuel in properlytimed relation. The
“air‘”intake¢port=.`62 hasiconn'ected'» to thefouter end
The two heads I2 and I3 are formed with abut
ment guide passages 50 and 5|, respectively, and
the abutment» 49` is äslightly wider' th’anÉtheHiS
tance transversely across the cylinder 34. The
abutment 49 is constantly urged inwardly ¿by
thereof an air conducting pipe 93, the latter be
ing connected at the opposite end thereof to an
means of a pair of springs 52 and 53 which at
air pressure tank 94. Air is discharged into the
air-.pressure »tank~94 at each revolution of the ro
tor 24 and in order to provide for the desired
- quantity orair >being discharged into the tank
94, I have provided a pair of air intake housings
their inner ends engage about«s`tuds~54» and-55,
respectively, carried by thev outer edge lof _the
abutment 49. The springs 52~and-ï`53 engage in
openings 56 and 51 formed in the outer wall 58
of the hollow member 45 and a head 59 closes the
95 and 96 which are circumferentially spaced
outer end of the housing mem~ber`~45-ìbeing<se-
fren-'reachl otheriand from the abutment housings
431and »44. The air intake housings 95 and 96
cured thereto by fastening members 59a. .
The head 59 is also formed with inwardly pro
are of like construction and each housing is pro
vided with an air intake port 91 communicating
through a port >98 formed in the cylindrical mem
ber I|.
‘A’ sliding abutment 99 is correlated with each
jecting studs 50 and 6| about which the outer
ends "of the 'springs ‘52 'and '53, 'respective1y,jen?g'age. ' ’The convex lea'ding‘side‘42 of ‘each’piston
“33 forms a cam by means of >which the abutment
"49 ¿is 'moved outwardly'against' the tension ofthe
housing‘95 and 96 'being spring-pressed to an
:"s’prin‘gs '52 and' 53. 'Each housing member’43' and 25 inn'er’position' by means of one -or more springs
V44‘is ‘form'ed‘with' an'in'take port '62 communicat
|99. The springs |00 at' their“ outer ends bear
'ing'with'an'intake port‘63 formed'in' the cylin
against an outer'head |0| secured by fastening
"drical‘member 'I I. A tappet valve'64 which opens
"members |02 tothe housing 95.
inwardly is adapted to normally engage aremov
’The -casing 'I I is provided with a pair` of..air
able'se'at member'ßïc'arrie'dï by 'the cylindrical 30 "exhaust
ports'y |03 andA |04, port- |03 being corre
"Ine'm'ber I I. 'The `Valve [member l64 includes4 a
lated with'housing '95 and port |04 being corre
'valve'stem 65 'having bifurcated'upper end 51,
"and 'one arm '63 of'a'blèllcrank'EB slidably'en
" 'ga'ges'in' the' 's'lot 'formed'by'bifurcating the outer
lated with housing 96. >An -outwardly opening
check valve"||l5 is mounted in an air pipe |06
'which is connected to'port |03 andan outwardly
I 'end ofthe stem '66.
‘Opening check valve |01 in an air pipe |08 is cor
”related with air exhaust port I 04. The two pipes
A p'in "I0 is extended across’the’bifurcated por
'tion'öl'of 'the stem'ES Aand‘loo'sely engages in an
"elongated slot `|I which 'is formed' in the' bell
'crank'a‘rm 68. The bell crank '69l is'rockablyL
"|06 and |08 are adapted. to be connected .to the
pressu`re"tank"94`by 'meansof a, common pipe or
manifold |09.
mounted on a' pin 72 carried' by the housing mem
l'ber '43, and the' opposite arm'fl3‘of the bell‘crank
has secured thereto a valve operating pin"|4. 'The
"In the use and operation of .this engine, the
casing' Illmay be‘mounted on a suitable baser with
' the shaft' I'l in a horizontal position. Upon ini
, tial rotation or starting of the rotor 24 one pis
inn'erend 'l5 of the pin' T4 projeots'into‘the' cyl
inder ‘34"through‘ an'op'ening 'I6 formedV inthe , .
ton Í33 will initially move `valve operating
outwardly and the latter willmove valve
wardly soas to permit fair. under pressure
"'w'ill be mixed with fuel discharged from
‘cyundricarmember I | and >the pinv is is'forme'd
with an4 annular `rib or 'shoulder ‘il engaging
"against ‘a’ shoulder 'I8' formed in theV cylindrical
"member I I. The' arm' `|3"is ‘coupledlto the pin- 14
by'me'ans of a"'pin 'adjusting member' ‘I9 which
is threaded'through the' 'arm'13 and isfo'rmed at
‘its ’inner `end with’a'b'all A8|! engaging'in' a` ball
socket 8| formed'in'the’outer end of the'pin'14.
A yspring B2 engages at`its inner‘jendab'out' the
'adjusting member 19,' ‘and'at‘its' 'outer 'end-V en
i'gages about ‘a’ stud‘93 'carried'by' the'head 59.
The‘valve 'operating pin '14' is .disposed 'on the
'trailing side of the 'abutment' ’49'and is' adapted
to>be moved outwardly to' shift valve B4 to open
position after abutment/¿Sis moved inwardly .by
pin ‘I4
64. in
jet 89
A to enter 'the cylinder'34. .Assuming thatthe valve
64 of housing'44 is initially moved to open posi
‘tion Ywhen the cam member .or convex forward
portion v42 of piston 33 passes pin 14, the abut
'.ment‘49. correlated with( housing 44 `and which
'has at this time been. moved toan. outermost po
sition will beforcedinwardly along-the convex
Ul trailing side 4| of a piston.
Preferably, the inner edge of -the. abutment 49
is rounded as at IIO so as to provide a seal be
'tween abutment 49 and piston 33l as abutment
‘49 'moves inwardly. lWhen pistonv 33 passes valve
openingpin "I4, igniter 92 will be ignitedrunder
Ythe ’springs 52 and 53 across the 'cylinder"34.
The casing |0 is formed with a` pair of exhaust
suitable timing means so as toignite the com
'ports 84 and 85. correlated with the housings-'43
bined air and vaporized fuel. ` The expansion of
and 44 and ‘disposed forwardly thereof so 'that
'the'burned gases willv then force piston 33 from
burnedv gases will 'be'exhausted from the cylinder j abutment 49 correlated‘with housing 44, and as
‘ 34 before unexploded ‘gases enter the cylinder. 65
‘An exhaust pipe 86 is secured ‘to the casing m'em
vvber I I communicating with the'port 84 'and a sec
this’pis'ton moves’cloc'kwise'toward housing 43,
abutment“4’9?c‘orrelaœd"with'housing 43 will be
"movedí'oiitwa'rdly' 'andv when 'the' 'trailing end -oi*
ond’ exhaust pipe'il'l. is‘se‘cured‘to the cylindrical
’the piston' passes exhaust portion185 the` burned
member II and communi‘c'ates‘with exhaust port ` ' gases at’ the'rear‘of the piston' Willibe'discharged
70 `through exhaust'ports '85. and exhaust pipe 81.
The housing ' member "43 :is formed'with 'a j'fuel
injecting port'ßfì‘terminating in‘a‘jetopening 89
communicating with the 'intake‘port 92. A‘fuel
vlinefilíl is ‘connected toîthe‘du'ct 'orpassage- 88 for
‘discharging fuel into 'the Yintake port Y62 'where
'.Th'e'same'cycle will be ‘obtained by abutment
`'49"and pin'14‘ correlated ‘with‘ housing 43.'. ¿In`the
‘present instance, ' the î twofhousings ‘43 'and'V .'44
whichfcomprise‘the'fuel intake' means'are cir
"15 cumferentially 'spaced apart"a` relatively "sh'o'i't
distance, whereas the air pressure housings 95
and 96 are spaced from each other and from the
housings 43 and 44 a substantial distance. In
apart pistons movable in said cylinder, a, hous
ing extending radially from and secured to said
cylinder, an abutment slidably carried by said
housing and normally biased to a position across
other words, housing 95 is slightly less than dia
said cylinder, each piston including a cam
metrically opposite housing 44 and the same is
shaped leading portion engageable with said
true of housings 43 and 96.
abutment for moving the latter outwardly into
Housings 43 and 44 being less than 45° apart,
said housing, a fuel intake valve carried by said
and rotor 24 having four pistons, rotor 24 will be
housing, and means connected to said valve and
under a continuous power impulse, the combus
projecting into said cylinder in a position for en
tion chamber 9| associated with housing 43 pro 10 gagement with said cam-shaped leading portion
viding the ñrst or leading impulse. Combustion
for moving said valve to open position, said lat
chamber 9| associated with housing 43 will pro
vide another power impulse before the gases have
fully expanded under the ñrst impulse, so that in
effect there will be two power impulses which
are continuously acting to rotate rotor 24.
What I claim is:
A rotary interna1 combustion engine compris
ing a substantially toroidal cylinder, a rotor in
cluding a plurality of circumferentially spaced
ter means including a bell crank pivotally carried
by said housing and having an elongated slot in
one arm thereof, a pin carried by said valve loose
ly engaging in said slot, a second pin slidable
through said cylinder, and means rockably con
necting said second pin to the other arm of said
bell crank.
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