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Патент USA US2406269

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Agg. 20, 1946.
` v `
R. F. THORNTON
l
POWER UNIT
Filed oct. 6,l 1.944
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2,406,259
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5 sheets-sheet 1
Aug. zo, 1946.I
2,406,269
R. F. THoRmoN
POWER UNIT
' >Filed oct. 6, 1944
5 Sheets-Sheet'1 2
26
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`INVENTOR.
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`Patented Aug. 20, 1946
2,406,269 5
tzu-NITED .STATES Vi>A1f-EÍ1~uff-o'Fl-‘ICI'I` iy
`>2,406,269
Ray F. Thornton,
vPOWERDearborn, Mich.
Application October 6, 1944, `Serial No. 557,511
4,v claims. (ci. rfi-_16)
,
1`
v
`The;present invention relates -to a power unit
and 'more particularly to a stationary power- unit
in which a plurality of separate internal com
bustion engines are interconnected for unitary
operation to supply power to a single power take
off shaft.
Y
.
2V
`
gin'es are interconnected for unitary operation‘to
supply power to a single power take-oli shaft.
'2. To provide a stationary power plant of com
pact design in which the power is’ generated by
a plurality of separate internal combustion en
gines which are interconnected for unitary op
eration, the engines being capableV of separate
Íoperation when desired.
Internal combustion engines, such for exam
ple as those used in automotive vehicles, have
been highly developed and because of the mass
3. To provide a power unit in which »power is
production methods’ utilized in their manufac 10
generated by a plurality of separate intercon
ture are available at arelatively low cost per
horsepower output. Inraddition, standard re
placement partsare readily available and a llarge
nected internal combustionengines mounted in
a unitary frame of unique and rigid construc
tion.
'
"
number "of Ytrained automotive mechanics are
4. To provide a power unit in which power gen
available to perform the> necessary service opera 15
erated by a plurality of separate interconnected
tions thereon.
f
y
internal combustion engines is delivered to asin
Stationary power units to supply sufficient
gle power take-off `shaft »which is adjustably
power in various installations may require more
mounted for Vbodily movement relative to the
shaft horsepower at times thancan be developed
by a single conventional automotive type of in 20 frame of the power unit and relative to lthe drive
shafts of the said internal combustion engines. .
ternal combustion engine. Howeverfa plurality
Other objects of the present invention will ap
of such enginesmay, according to the present
pear in the following description and appended
invention; be interconnected for unitary opera
claims, reference being had to the accompany
tion to supply the required shaft horse power. to
a single power take-oli” shaft. By utilizing a plu 25 ing drawings forming a part of this speciñcation
wherein like reference characters designate cor
rality of such engines, the power output may be
responding partsin the severalviews.
readily varied to compensate for the load re
In the drawings:
quirement,‘either byvarying the number of sep.
Fig. 1 is a perspective view of the power unit 'of
arate internal combustion engines in operation,
as by cutting in or cutting out certain of the 30 the present invention with the side cover »plates
removed to reveal the construction thereof.
engines, or by operating the connected engines
Fig. 2 is a side elevation of la power unit-em
at lower speeds. `In either instance the power
bodying the present invention with the side cover
unit of the present invention provides a flexi
plates in- closed position.
bility in operation which frequently is lacking in
stationary power units in which a single heavy 35 Fig. 3 is a cross-sectiontaken substantially on
the line 3-3 of Fig. 21 inthe direction of the
duty relatively large horse power internal com
arrows.
bustion engine is utilized.
By way of example, but not of limitation, a
stationary power unil; of the present invention
Before‘explaining in detailthepresent inven
tion it is to be understood that the invention
may be utilized to supply power to portable ma 40 is not limited in its application to the details of
construction and arrangement of parts illustrated
chinery of various types, such for example as
in the accompanying drawings, since the inven
portable saw mills, earth handling and moving
tion is capable of other embodiments and ofrbeing
equipment, stone and rock Crushers and the like
practiced or carried out in various ways. Also
or similar equipment. It may also be used t0
it is to be understood that the phraseology or
drive. pumping equipment and electricity gen 45 terminology employed herein is for the purpose
erating equipment. In general, a power unit of ‘ of description and not of limitation.
the present invention may be utilized wherever
A power unit of the present invention com
a heavy -duty stationary internal combustion en
prises. a `plurality of separate internal combus
gine is suitable for use as the power unit.
tion engines l 0, .which are preferably of the auto
-The principal objects of the present invention 50 motive type and of any desired conventional con
struction. In the present drawings two such en
gines are shown by Way of example, but itis
' 1. To providea power unit particularly adapted
are:
.
-
to be understood thatany desired numberymore
a plurality of separateïinternal combustion len- 55 than two, may be utilized within the scopeof the
present invention. The conventional type `.en->
for- use as a stationary power unit and in which
2,406,269
3"
I' f
"
members I9 and 20 and by a front cross-frame
. gines are each provided with a conventional type
4I.
_ clutch which is connected to a unitary clutch
l control shaft II, which is controlled by a clutch
i operating lever I2.
_
The engines I0 each drive a `
A longitudinally extending frame 42 con- '
Vnects the front cross-frame 4I and the cross
frame I9. The longitudinally extending frames
42 lextend substantially parallel to the side sills
40 and are spaced therefrom to permit the‘en
gines I0 to be suspended between them. The
l shaft I5 to which a drive pulley IB isconnected.
.side
mounting brackets of the engines Iûgare
` Each arbor shaft I5 is journaled in fixed bearings
secured to the longitudinal frameY member 42 and
I1 and I8 mounted respectively. ‘onv crossV-franrieVv 10 to the'side» sills`40 by a V'plurality of `_any suitableY
membersïIi-l 'and 2'0'of lthe power unit frame.
type of vibrationabsorbing motor'mountings 43.
j stub-shaft I3 which is connected through a conventional type universal joint I4 with an arbor
.
lilach‘engineVv I0 is provided >with fuel from a
By thisY construction, the engines I0 are each
separate fuel tank V2 I' through its conventional ._ i resiliently suspended -in a rigid cradling frame.
fuel feeding system. Each tank 2I is provided-1
the side sills 40 and theY
with a filling spout ‘22 which extends above _the
_ top of the unit and’is closed by a removable
i
spout cap 23.
f
_.
Y
Y
Secured to the tops of
Y
main frame
are a plurality of upright top frame I
' vmembers 44»to which is secured the top and top
.
Conventional types of indicating instrumentaÈ A
such for example as ammeters, tachometers and i" `
frame 45 from which the fuel tanks 2| are sus
pended.VA
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"`
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'
1 A»A longitudinally extending iiangeY 46 is pro
the like (not shown) are operatively connected; ,
on each side of the top and top frame 45 `
with each engine I0 and are mounted on an in 20 vided
for receiving the top longitudinal _edge portion
strumentpanel _24_provi_d_ed in the dash 25, _one
instrumentípanel 24 being 4vprovided for Aeach >of`
of aremovable side cover-4l, the bottom Aedges
of which are held in a plurality oflongitudinally
spaced cover brackets 4Bsecuredto the side sills
.-_Eachengine IIJ _is provided with a separate cool
40 of the main frame. -A plurality of spring clips
25
ing system which comprises a conventional Vtype
43 are secured to the cover 4l to engage ¿the
of .?luidjradiator 26 having- a >iiller spout 2'I ex-`
tending above the top plane -of >the unit and
longitudinal
The single edge
power
of theflange
take-.off shaft
46; 50 is-provided
_ 1 , ,
closed by Va removable ñller' spout top 28. `Air
with a connector Vflange 5l> and is journaled in
_ is drawn inwardly through theradiator core andy
bearings 52 and 53 slidably mounted in vertically
blown over each engine» Iß‘bya conventional type 30 extendingrigid bearing ¿slides ,'54" and 55. The
of automotive engine cooling fan 29. I
,
‘
.l , ..
,- »The exhaust >manifold of Veach, engine Il)V is
connectedwith its own exhaust pipe 30 and ex
bearing slide 54 is> connected >tothe _cross-frame
20 of the maink frame v`and to the rendV cross meme
ber 3.5 ofv the‘z'base frame. a The »bearing slidev55
haustçgas vmufl‘ler _3_I.-V While the muffler 3| may
is aligned with the/bearing slide 54'and extends
be of anydesir'ed construction, If prefer to use 35 substantially 'parallel and in spaced , relation
the muilier construction shown; in my _co-pending
thereto. It is secured `to the cross-frameïmem
application Serial No. 5253525."
i,
'
'
ber I9 of the main frame and one of the >plurality
YThe engines I0 are- synchronized for operation
33 of the 4base frame.
'
Y.
as a unit, preferablyY by balancing the intake 40 ofcross-members
. A'drive pulley 56 is secured to the power take-v
manifold pressures, one suitable balancing mech
off shaft 50between the bearings >52'a`nd153. ' The
anism being shown by way, of exampleinzmy co'
drivepulley 56 is driven'rfrom the'enginedriven
pending application Serial No..52_4,4.02.
drive pulleys Hi- by a pluralityk of ilexiblei‘l 'drive'
The governor controlledfintake valve and the
manuallyxcontrolled carbureter intakevalve are
preferably connected by `>any suitableV type Vofade'
Yjustable connecting“ Aand. control device. Y How
Vertical adjustment óf 'the drive‘fpulleylrlärü'eof
beltsâ'l.
“ the- power: take-oir
ever, it is to be understood that anyïother types
of engine synchronizing and control mechanisms
may be employed-if desireclgf'
v' J
'
'Y r
. The entire power unit is mountedV ina frame 50
which comprises a pairof base ’framefmembers
'32'rigidly connected in spacedïsubstantially'par
allel relation by a plurality of cross-frame mem;
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'
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shaft V5f) to take up >slack’fin
the drive belts 5l or to permit changes inthe
drive ratios bythe substitution of a 'differentsize . '
drive pulley '56, isV provided by adjustedrvertical
movements of the bearings 52 and 53 in' the bearL
ing slides 54 and v55. The vvertical adjustment ~of
the bearings 52 and 53 isi effected through'bearä
ing slideadjusting screws d58 and'59.A The’ad
bers 33, and end frame members v3’4 and 35. The
justment of the `bearings 52 and 53 >in the bear
n'e'etion of` conventional types of hooks employedv
theV frame may ‘oe securedin'any’suitable manner
preferably byy welding,` but any >¿other suitable
means,V such for yexample'as bolts, rivets'> or theV
base frame members 32’, cross-frame members 33 55 ing slides 54 Vand 55 is Ymaintained by‘lock nuts
65 and'öl on- the bottom adjusting screws »59. Y f
and end frame members 34 and 35 areY al1Y pref
The various frame elements heretofore de
erably channel shape in cross-section to impart
scribed
are interconnected to form afsingle uni-`
_ greater strength and rigidity thereto.
tary frame construction-(which isrigidfand'has 'a
The base members 32 `are preferably each'pro-V
The _various
'
f partsA 0f _
vided withïa plurality Vof eyes36 to permitY con-V 60 high strength-weight ratio.-
Vwithhois'ting or moving equipment. The ends V3'I
are shaped to permit use of the basel members,V 32
like, may be employed for this purpose.
. - Y '
unit into operating 65 n
as skids for moving the power
The drive transfer mechariis herein disclosed
' position as for example onïa'fplurality’of spaced
base members 38, which, if desired_,-may be struc
may be replaced if Vdesiredby adriVe gear‘mech--
tural elements of 'the "machine with _which the
anism herein disclosedïwouldgbe Yreplaced by'Y a
power unit of the present invention is to be used.
A plurality of vertically extending corner frame _ _
secured Yto Ythe tops >of the Vbase 70
members 39 are
frame members 32 Y'and' to >the topsl'of the end
frame members 34 and‘35fa'n'd supporta plural
anis’m _in whichfevent thetransi’ei` drive mech-l
gear case and gears.-therein.¿~~-
t Q v
j_ _
‘_
. From the foregoing it will be seen that-I have
provided a novel power unit construction in which
a plurality of separate internal. combustion _en- _
Ygines Yare interconnected(forunitary operation to
supply Y,power to ajsingle 'powertakegoiïshaft
sills 40 of vthe main frame arersecured in_spaced
75 and in which the separate'ensines are capablel of
ity'of side sills 40 ofY the'rnain frameffï‘lîie side
substantially parallel relation bythe cross-frame
5
2,406,269
separate operation when desired, and are mount
ed in a unitary frame of unique and rigid con
struction. Power units embodying the presentV
invention have been used successfully in various
installations where a single heavy duty relatively
large horse power internal combustion engine
was previously employed as the power source.
The greater flexibility and the greater economy
in the repair or replacement of worn parts and
the servicing of the u_nits by readily available
trained automotive mechanics and has been found
to be particularly advantageous.
I claim:
1. A power unit including a plurality of sepa
rate internal combustion engines interconnected
for unitary operation to supply power to a sin
gle power take-off shaft and having a rigid frame
including a base frame and a vertically spaced
motor supporting frameV secured to said base>
frame, and including spaced substantially par
allel side frames interconnectedby a plurality of
cross-frame members, a drive shaft connected
with each engine and journaled in a pair of
' spaced vertically adjustable bearings, slidably
mounted in a pair of spaced slide members se
cured between vertically spaced cross-frame
members of said base frame and said motor sup
porting frame, means associated with said slide
members for adjustably moving said bearings in
said slide members, a power take-off shaft and
means connecting said drive shafts in driving re 30
Y lation to said power take-off shaft.
2. A power unit including a plurality of sepa
rate internal combustion engines interconnected
for unitary operation to supply power to a single
power take-off shaft and having a rigid frame in
cluding a base frame having a pair of spaced
substantially parallel longitudinally extending
6
said bearings and comprising spaced slide mem
bers each extending between aligned vertically
spaced cross-frame members, one on said base
frame and one on said motor supporting frame,
and adjustable means associated’ with said slide
members for moving
thereto.
said , bearings
relative
3. A power unit as claimed in claim 2 and fur~
ther characterized in that said base frame in
cludes a pair of spaced substantially parallel'lon
gitudinally extending side skid members each
having upwardly curved bottom end surfaces and
an eye adjacent *each- end thereof, and a drive
shaft is connected with each engine and journaled
in bearings secured to a pair of said cross-frame
members to drive a power take-off shaft, and
means are provided for vertically adjusting said
power take-off shaft relative to said drive shaft
and include a pair of vertically adjustable slidable
bearings and slides mounted between vertically
spaced cross-frame members of said base frame
and said motor supporting frame, and means for
adjustably sliding said bearings in said slide
members.
4. A power unit including a plurality of sepa
rate internal combustion engines interconnected
for unitary operation to supplypower to a single
power take-olf shaft and having a rigid frame,
including a base frame, and a vertically spaced
motor supporting frame secured to said base
frame, including spaced substantially parallel side
frames interconnected by a plurality of cross
frame members, and a centrally disposed longi
tudinally extending member positioned between
said side frames and extending between a pair
of said cross-frame members adjacent one end Yof
said motor supporting frame to provide with said „
side frames a plurality of rigid engine frame
cradles, each of said engines being connected with
side skid members and a vertically spaced'motor
supporting frame secured to said base frame, and
including spaced substantially parallel side frames 40 a drive shaft journaled in bearings secured to a
pair of said cross-frame members to drive saidY
interconnected by a plurality of cross-frame
power take-off shaft, said power take-off shaft
members, a drive shaft connected with each en
being journaled in a pair of vertically adjustable
gine and journaled in bearings secured to a pair
bearings, one adjacent each end of said power
of said cross-frame members, a power take-off 45 take-off shaft, and moveable in a pair of spaced
shaft, means connecting said power take-off shaft
slide members, said slides being secured between
in driving relation to said power take-off shaft,
vertically spaced cross-frame members of said
a pair of vertically adjustable bearings, one adja
base
frame and said motor supporting frame, and
cent each end of said power take-off shaft for
means for adjustably moving said bearings in said
` rotatably journaling said power take-off shaft, n 50 slide members.
and means for permitting vertical adjustment of
RAY F. THORNTON.
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