United States. National Advisory Committee for Aer.

Annual report of the National Advisory Committee for Aeronautics online

. (page 46 of 77)
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present.

New subclass 1£4 — Valved fuel inlet between automatio air inlet
valve and throttle, fuel valve controlled by throttle. — ^Air entrance
through an automatic valve results in a limited variation of vacuimi
at the point of fuel inlet affecting fuel flow, which is also subject
to the variations of fuel inlet area resulting rrom the control of the
fuel valve by the throttle. The automatic air inlet valve may or
may not close the inlet completely, but it controls the air flow and
vacuum even if some fixed air inlets are located nearby.

New subclass 1S£ — Valved fuel irUet between automatic air-inlet
valve and throttle, fuel valve controlled by automatic air valve. — As
in the last case the fuel inlet is subjected to the entrance resistance
of the air passing the automatic valve and the fuel flow is the result,

{)artly of tnis and partly of the change in the fuel inlet area as regu-
ated by the fuel valve which is here actuated by automatic valve.
Normally both air and fuel are primarily controlled in quantity and
proportion by the two relative and connected valved openings rather
than by any material vacuum change, though not exclusivdy. The
automatic air valve need not completely close the air inlet.

New subclass 12S — Valved fuel irdet^ between air inlet valve cmd
throttle, fuel valve vontrolled independently by vacuaim or air flow. —
The air inlet valve may be either sort, automatic or mechanically
connected to throttle, but the fuel valve is controlled independently
of the air valve or throttle, by the vacuum directly, or by flow valves
beyond it, or by air impact on moving members.

New subclass 12.7 — Variable float chamber pressure. — ^In addition
to the use of a fuel inlet with a regulating valve associated with an
air inlet similarly provided with a regulatmg valve, fuel flow is sub-
jected to the further control of the pressure m a closed float chamber
which is varied by a connection to the vacuum chamber of the car-
buretor. Any air ti^at flows through the float chamber as part of
the means of pressure control on the fuel surface is disregaraed.

New class 13 — Carbwretors, proportioning flow, aspirating, sinale
fuel and multiple air inlets, both with regulating valves. — ^Normally,
two air inlets, one primary and the other secondary, are associated
with a single fuel inlet having a regulating valve, but there may be
more air inleta



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AEBOSTAUTIOS. 156

New subclass IS J — Valved fuel inUt^ "fixed primarj/ airy fa>ed or
'OiH/oed secondary air irdety throttle control of fuel^nlet valve and of
secanda^n/ air valve. — ^The changes in vacuum at the fuel inlet sup-
plied with primary air from the fixed air inlet, even as modified by
a fixed or throttle-controlled secondary air, are not relied upon to
control fuel flow, but a fuel-regulating valve actuated by the throttle
is added*

New subclass 1S£ — Valved fuel irdet^ valved prmuxry and second*
ary air inlets, throttle control of both air inlets crndfuelrinlet valve, —
Variation oi two air-inlet areas and the fuel-inlet area with the
throttle subjects both air and fuel flow to the control of mechanically
related inlet and throttle outlet areas, and the vacuum at the fuel
outlet still remains as a factor.

New subclass 13,3— Valved fuel inlet, fixed primary and throttle*
con^oUed secondary air inlets^ fuel valve corUroUed by the vacuum
or air fiovo independently. — Fuel-inlet area is dependent upon the
vacuum or air-flow conditions independent of the throttle or of the
throttle-controlled secondary air.

New subclass 134 — Valved fuel inlets fixed primary and automatio
valved secondary air inlets^ fuel valve controlled by the throttle.-^
Fuel-inlet area is dependent upon the mixture-outlet area by the
throttle connection and is independent of the air-inlet areas, the
vacuum at the fuel inlet being, however, directly dependent on the
air inlets.

New subclass 1S£— Valved fuel inlety fixed primary and automatio
valved secondary air inlets, fuel valve controlled by the automatio
secondary air valve. — ^The throttle is independent Fuel-inlet area
is relatea to the movement or entrance area of the automatic second-
ary valve.

New subclass ISS — VdJ/oed fuel inlet^ valved primary and secondary
air^ both automatic^ fuel valve controlled by one or both automatic
air-inlet valves. — ^The two air-inlet automatic valves may be in-
dependent or consist of two ports controlled by one valve, and the
inlets need not be completely closed by the automatic valves so long
as they control the flow and the resulting vacumn.

New class H — Carburetors^ proportioning fiow^ aspirating^ mul-
tiple fuel and air inlets, both with regulaling valves. — ^Two or more
fuel mlets each differently situated or different in action are asso-
ciated with two or more fuel inlets each acting differently with
respect to flow, and at least one of the fuel and one of the air inlets is
provided with a regulating valve, though all may be so equipped.

New subclass 14 J — Two fuel inlets, one fixed main and one valved
supplementary high-speed jet, two air inlets, one fixed primary and
one valved secondary.— A two-jet type of carburetor, tne second or
high-speed jet coming into action with the opening oi the secondary
air valve automatically or brought in by the vacuum due to hi^h-
flow rates. However brought in, the high-speed jet is provided with
a regulating valve.

New subclass H£ — Multiple carburetors, progressive by throttle
or vacuwrn. — Two or more complete carburetors, each witn its own
fuel and air inlet, both with regulating valves, and brought succes-
sively into action oy either the throttle or the vacuum. There may be
a common secondary air inlet at their outlets, throttle controlled or
automatic



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156



AEBONAUTICa.



New class IS — Carbwretora^ proportioning How^ aspirating^ therma-
static or barometric control. — Density corrections for air or fuel, and
for viscosity of fuel to compensate for changes in temperature of
either^ or changes in absolute pressure of the former, by actuating
their mlet valves or by restoring the original value of the variable.

New subclass 16 J — Thermostatic controls. — Automatic means of
keeping a constant temperature of air or fuel or both or of actuating
the regulatings^ valves to compensate for temperature changes.

New subcuiss 16£ — Barometric controls. — ^Automatic means of
keeping the absolute pressure of the air supplj constant or of actu-
ating the air-inlet valves to compensate for variations.

(B) Assigiimeiit to the new dasses and sabdasses <tf aD United States
patents for ''proportioning-flow'' type carburetors found in die
official lists of Part n (A), (B), (C) and (D), constituting a new list
of aD United States patents contaming proportioniog-flow carburetors
arranged according to the new dassiflcation.

United States patents.



Patent No.


ProMnt official—


Patent No.


Present Affldal-


Class.


Subclass.


Class.


SabdasL


portionliu-flow fixed air and
foel inlflls, perJodIo ftiel
▼aire:
617,344


128

48

123

C.R.2

48

123

123

123

48

C.R.2

C.R.

123

C.R.2

123

C.R.2

48

123

C.R.2

C.R.

/ 261

i 123

C.R.2

48

C.R.

C.R.2

C.R.2

261

48

123

C.R.2

48

261

48

48

48

48

123

48

48

48

123

48

48

48

48


130
149
28


portkming-flow fixed air and
fuellnlSs, periodic fuel
Talve— Continued.
747,235


48
123
48
C.R.2
48
48
48
C.R.2
48
48
48
123
48
261
261
48
48
48
48
123

C.R.2
48
48
48
48
48
48
48

C.R.
48
48
48
48

C.R.
48
48
48
48
48

C.R.
48
48
48
48


154.1


58i,779


748,990.


129


532,314


756,879


150 1


634,354


760,333




£56,000


154.1

85

85

35
155


760.673


154*1


665,033


761,192.


155


666,125


761,802.. !...!! '...'.'.'.


154.1


678,084.


778,154 . .




681,930


778,968


148


684,666.


791 102


154.1


687,627


m"


793,498


155


606,832.


794,192.


138


609,375


806,079


154 1


609,376.


n2


811,307...!.!!!.!!!!!..!!!*.


62


608,068.


817,051 . . .


12


611,341


134.1
123


820,406


154 1


614,114


826,787


154.1


627,369


842,429


154.1


632,860


si"

133


850,223


154.1


635,208.


880,630


35


680,048.


863,516

■ 886,002




640,191


154.1


868,265


155.2


657,140


871.288


150.1


668,127


878,824


155


658!307




890,009


154.1


668,053


18

154.1
110

i54.*i

67
148
154.1
155
148
123
155
154.1
154.1

35

154.1
154.1
154.1
154.1


801,322.


150. a


670,021


911,967


154.1


680,116.


015,684


154.1


682,682.


930,483




668!367


044,811


154.1


602,444.


9^'},'m


154.1


696,231


073,882.


154.1


708,937.


074,083


154.1


705,314.


975,096




705,021 . .


076,409


155.1


722,672.


078,076


154.1


706,050.


ggJ'ggQ


154.1


714,082. .


070|409


154.1


724,328. !!!!!!!


999.033


154.1


726;ioi


owSs?!!!!. !.!!!!!. !!!!!.!




727 476.




154.1


729,254


l,W7',(iS9


154.1


730,608


1,000,252


154.1


741,960


i,02i,aa6


154.1



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▲EB0KAUTIC8.
United Btatea patent$ — Continued.



157



Patent No.



PrflMiit afflcial~~



ClMB. SubdasB.



FatOQt No.



Prwcnt offldal—



Class, SubclasB.



New dus 1, earboroton, pco-
porUonlng-flow fixed air and
ftiel Inlets, periodJo ftiel
valTO— Ckmtfaiued.

1,039,606

1,044,314

1,049,318

1,068,866

1,111,179

1,130,397

1,124,911

1,138,968

1,130,338

1,137,728

1,145,854

1,146,181

1,151,156

1,173,358

New class 1.1, mechanieallT-
operated iliel valve, atai^e
air inlet:

433,806

433,807

437,507

456,884

482,202

526,867

537,370

550,451

573,762

574,183

685,115

596,809

527,887

658,594

659,095

679,063

690,481

738,873

740,571

761,292

788,748

792,894

806,822

846,434

857,111

868,046

885,598

924,483

951^

New class 1.3, single air inlet
with automatic valve, fuel
inlet in seat:

417,934

418,039

623,611

532,100

639,710

566,717

563,541

593,043

503,911

506,986

600,147

608,986

627,219

635,166

646,044...:

683,110

690,113

700,205

719,536

722,357

729,377

731,218

755,098

782,471

806A39



48
48
48
C.R.
48
48
48
48
48
48
48
48
123
48



C.R.2

C.R.

128

C.R.2

C.R.2

C.R.2

C.R.2

C.R.2

123

123

C.R.

123

123

C.R.

123

123

123

C.R.2

123

C.R.

48

123

123

123

C.R.2

48

123

123

C.R.2

128



C.R.2

123

C.R.3

C.R.2

C.R.2

C.R.

C.R.

C.R.2

48

123

C.R.2

C.R.2

C.R.2

48

C.R.

48

48

123

48

48

123

48

123

128

C.R.2



154.1
154.1
154.1

"i54.i
154.1
154.1
154.1
154.1
154.1
154.1
154.1
123
154.1



New class 1.3, single air Inlet
with automatio valve, fuel
inlet in seat— Continued.
817,721



819,239..
856,760..
866,490..
868,393..
874,823..
877,753..
894,656..
913,313..
922,374..



948,977.,
065,218..



122
121

'122*
123

'iii'

133
121



85

'iso.i

123
121
119



168
133
123

"35'



129



155
34



155.1

'168*
154.1
86

155.1
154.1
123
164.1
141
123



970,251

973,066

978,787

996,919

1,046,141

1,048JJ18 ,

Re. 13,580

1,067,351

1,086,359

1,005,622

1,101,147

1,156,836

New class 1.3, single air inlet
automatio valve, fuel inlet
beyond,'

441



48

123

C.R.2

48

123

C.R.2

123

48

48

48

C.R.

48

123

123

961

48

48

48

48

48

48



8,386..
496,447..
500,401..



515,050..
552,263.,
567,253..
578,683.,



593,911...
609,557...
616,974...
632,917...
633,800...
638,529...
665,496...
671,743...
619,776...
676,285...
680,572...
680,961...
681,287...
694,708...
709,126...
709,428...
710,841...
746,701...
756,908...
799,791...
806,125...
835,564...
837,984...
863,516...
882,023...
892,501...
904,508...
912,998...
912,909...
930,443...
938,894...
952,547...
963,804...
964,409...
064,831...
088.659...
1,022,803.



C.R.2

48

48

48

48

123

48

48

123

C.R.

48

48

C.R.2

48

48

48

123

C.R.2

123

48

C.R.

C.R.2

48

123

123

C. R.

C.R.2

48

48

C. R.

t ^

48
48
48

C.R.2
C.R.
48
48
48
48
48
48
C.R.
48
48

C.R.2



166
26



154.1
129



120
150.3
154.1
154.1

*i64.*i
123
141
50

155.3
154.1

isa2

155.2
154.1
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148
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158



ABBONATTXICB.
United States patents — Continued.



Patent No.



Pnsent offldal—



GlMB. BabdasB.



Patent No.



Present affldal—



caasB. Sobdaa.



New class 1.3, single air in-

* let automatic valve, fuel

inlet beyond— Continued.

1^1^

1^,630

IfiMflSO

1,111,887

1,187,727

New class 1.4, double air In-
let, primary and secondary:

610,460

679,387

715,308

717,000

736,191

726,671

741,224

800,777

888,263

896,388

903,206

938,804

939,856

951,002

1,178,530

1,181,614

New class 2, carburetors, pro-
portioning flow, metering
mel pump, air motor driven:

957,976

1,048,083

1,119,479

1,127,120

1,137,238

1,149,323

1,150,116

1,153,077

New class 3, carburetors, pro-
portioning flow, asplratuiff,
single fixed fuel and air
inlets:

439,813

477,296

642,043

650,675

613,757

627,867

633,274

634,242

640,394

640,674

644,566

650,736

668,267

670,803

671,714

682,506

682,606

685,993

690,610

690,989

«M,110.....*

606,146

702,469

703,769

706,995

706,494

711,005

721,288

724,648

729,467

730,064

737,848

772,530

781,986

790,379



48
48
48
C.R.
48



C. R. 2

48
48
48
48
C.R.
48
48
48
48
48
48
48
48
48
48



C.R.

C.R.

C.R.

C.R.

C.R.

C.R.

123

48

C.R.2

C.R.2

48

123

123

C.R.2

123

48

C.R.2

48

C.R.

48

48

C.R.

48

C.R.

48

C.R.

48

48

48

48

C.R.

48

C.R.

48

128



164.1
154.1
154.1



154.1



164.1
164.1
154.1
155



154.1

148

154.1

154.1

154.1

155.2

154.1

154.1

148

156.1



153

156.1

155.1

154.1

153

156

155.1

152

148

153



133
55.



155.
41
132



155.1

49"

i55.'i
48

155.' i

*i54.'i

*i56.'i
155
155.1
155.1



155.1



148
183



New diass 8, earburetors, pro-
portioning flow, aspirating,
single fixed fuel and an:
inlets— Continued.

804.589

812,371

816,109

822,172

846,903

849,048

854,246

855,179

867,604

872,336

891,064

915,647

917,283

936,337

939,481

975,796

1,006,033

1,008,155

1,013,759

1,026,491

1,081,900

1,084,151

1,103,451

1,105,017

1,109,025

1,110,438

1,118,459

1,160,662

1,166,967

1,171,200

1,178,972

1,179,664

New class 8.1, fuel inlet at air
throat:

850,769

657,739

667,740

693,778

733,605

765,814

780,537

858,586

887,370

890,273

807,259

906,980

928,939

954,905

984,032

1,014,988

1,020,425

1,033,505

1,038,609

1,052,897

1,054,728

1,063,666

1,068,195

1,081,258

1,101,913

1,102,026

1,107,636

1,117,641

1,117,642

1,130,981

1,148,166

1,153,364

1,190,714

New class 3.2, air guides or
baffles:

660,482.

699,504.

737,468

791,501

797,972.



261

C.R.2

C.R. 3

C.R.

48

123

48

48

48

C.R.

C.R.2

48

123

48

48

C.R.

48

48

48

48

48

48

123

123

C.R.

123

48

48

48

48

123

48



C.R.

123

48

48

261

C.R.2

48

123

123

48

123

123

C.R.

48

C.R.

128

C.R.2

123

C.R.

48

C.R.2

123

C.R.2

C.R.

123

123

C.R.2

C.R.

C.R.

48

123

123

48



C.R.
48
48

C.R.

48



15



155.1

186

155.1

155.1

155



165.1
25

155.1
156



156.3

144

150.1

155.1

156

150.1

122

123

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155.1

155.1

150.1

150.1

122

144



182
156
155.1
13



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133

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133

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ABB0KAUTIC8.
United States patents — Continued.



159



No.



Prtmit official—



CnsH. BubclflM.



Patent No.



Pressnt official—



Class. Bubdaai.



New daes 3.2. air guides or
baffles— Continued.

817,641

817,941

826,7M

844,900.

882,083.

886,283.

908,112.

981.389

1,072,376

1,109,192

1,134,021

1.141,670

New dass 3.3, rotating fuel
spreader, air driven:

868,707.

1,002,953

1,178,127

New class 3.4. variable jet and
throat relation:

656,197

1.0S8,226

1,149,908

New class 3.5, variable float
chamber pressure:

688,101

741,962.

964.488

960,601

961,152

992,260

998,457

1,002,646

1,064,627

1,064,628

1,074,625

1,108,727

1,166,734

New class 4, carburetors, pro-
portlonins flow aspirating,
single fuel, multiple air in-
lets, both fixed:

6M,723

649,939

667,496

605,815

664,200.

699,309

728,986.

754,001

72,979.

776,103

84V70

871,134.

878,770.

991,029

994,668

996,976.

1,003,361

IflMJOBS

1,019,209

1/131,147

1,042,079

1,072,876

1,116,986

1,134,866

1,169,167

1,160,483

1,174,629

New class 4.1, mixed flow:

681,382.

684,662.

686,092.

719,486.



48

123

48

128

361

48

48

C.R.

C.R.

48

C.R.

48

49



123

261
48
48



.R.

48
48
48
.R.
48
48
48
48
48
48
48
48



C.R.

C.R.

C.R.

C.R.

C.R.
48
48
123
48
123
48
48
48
C.R.2
123
48
48
48
48
48
48
48
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48
48
48

48
123
48
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48



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155.1

155.1

155

165

148

166.1

165.1

16a 3

155

166.1

15&1

132

16ai

'i66.'i



New dasB 4.1, mixed flow—
Continued.

801,630

898^.

1,065,912

1421,630

1,130,490

1,149,036

1,183,293

New class 6.1, main ftiel inlet,
with supplementary high*
speed Jet:

1.079,634

New class 6.2, main ftiel inlet,
with Bappumentary Idling

»6/)74.

1,1«,294

New class 6.8, fuel standpipes:

1,003,848

1,148,378

New class 6, carbnretofs, pro-
portloDing flow, aspirating,
multiple rael and multiple
air inlets, both fixed:

811,618

861,378

1,013,983

1,097,166

1,102,722

1,125,368

New class 6.1, double carbu-
retor, progreflBlve by throt-
tle:

898,494.

898,486.

907,767

1,002,609

1,011,694

1,089,602

1,096,482

1,122,571

New class 6.2, multiple carbu-
retor, progresBlve Dy throt-
tle:

759,634.

832,184.

879,380.

910,018

048,612.

1,018,282

1/121,547

1,144,206

1,158,589

1,162,041

982,428

Newclass 6.8,doublecarburet-
or, progressive by vacuum:

872;i88."."i.'r.!;"!i.'!!;;!;

1,176,627

1,176,661

New class 6.4^mult^e carbu-
retor, progressive oy vacu-
um:

664,134.

871,320.

1,049,705

1,072,783

1,113/Bl

1,146,150

1,180,976

1,185,016

New class 6.6, mixed flow:
907,968.



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132

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16a 3



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150.3
150.3
150.3
150.3

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150.3
150.3
150.3
150.3
150.3
150.3
150.3
150.3
150.3
150.3



150.8
98

150.3
160.8



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Digitized by



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160



AEB0NAUTIG8.
United Biaiei patenU — Gontiniied.



No.



r iPMe n t o fl i ctii t—



CnsH. SubctaflB.



No.



FMseotaffldtf-



C1B68.



New olMi 6.5, mixed flow~
Continiied.

1,002,700

1/)18,708

1,061,041 .,

1,063,148

1,089,372

1,000,047

L096,62B

Re. 14^

1,099,277 ,

1,109,974

1,112,374 ,

1,116,023

1,143,986 ,

1,144,206

1,153,436 ,

1,170,348

1,170,416

1,170,417

1,176,&36

1,176.267

1,177,624

1,183,019

1,183,864

1,183,673

New class 6.6, fuel standphw:

027,211 ...v..

New class 7, carbnretors, oro-
portioniDg flow, aspiratmff,
single fixed inlet and single
air inlet with regulat&g
TElTe:

864,111

865,539 ,

876,800

911,692

935,833

836,118

967,407

1,037,833

1,062,688 ,

1,101,736

New class 7.1, fuel inlet be-
tween throttle-oGotroUed
air valTe and throttle:

771,492.

789,749

794,927

810,435

823,485

853,428

856,638

861,438

863,739

867,850

803,685

806,5b0

932,465

973,602

976,813

977,831

1,006,387

1,043,077

1,044,764

1,064,084

1,062,333

1,077,881

1,077,910

1,095.101

1,105,008

1,118,917

1,124,724

1,135,729

1,130,851

M45,990

l»160,aQ2



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155.1
150.3
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150.3
150.3
150.3
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150.3
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150.8
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15a 3
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15a 3
15a 3

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155.2

155.1

155.2

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New dan 7.1, ftiel Inlet be-
tween throttle-controlled
air valve and throttla— Con-
tinued.

1,150,224

1,161,169

1,151,286

1,163,581

New class 7.2, ftiel inlet at or
before air valve, whioh acts
as a throttle:

627,372

804,025

815,712

816,846

832,183

868,251

1,014,188 ,

1,037,834

1,038,804

1,045,613

1,067,449

1,080,118

l/)88,974

1,108,181

1,116,681

1J17,233

1,131,312

1,143,227

1,144,549

1,161,437

1,165,224

1,171,074

1,172,388

New class 7.3, fuel inlet be-
tween automatic air valve
and throttle:

622,891

657,738

666,623

673,901 ,

688,340

750,396

774,079

785,622

792,628

794,502

796,723

806,434

820,583

822,681

829,345

831,547

«9,675

886,760

896,550

911,106

921,410

929,327

947^

962,140

966,381

983,307

986,700

993,097

996,897

1,018,128

1,027,768

1,038,699

1,039,229

1,041,099

1,080466

i;085S»

1,106,258

1,124,918

1,116,678

1,129,864

1,182,680



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Digitized by



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AERONAUTIOS.
United States patents — Ck>ntiniied.



161



PiteEitNo.



rrMmtoffldal—



Clam, BubdMi.



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Clan. Bubdaai.



New class 7^, foal Inlet be-
tween automatic air valve
and tbrotUe— ConUnoed.

1,133,845

1,141,798

1,180337

1,178,888

1,190,540

New class 7.4, fuel inlet swept
by air entering through air
valve:



783,903,.

791,447..
799,232..
800,847..
855,574..
859,710..
875,718..
878,411..
904,859..
910,379..
918,108..
924,200..
925,973..



943,197...
950,278...
960,897...
963,187...
978,344...
973,8n...
995,910...
997,160...
1,000,398.
1,006,300.,
1,020,081..
1,023,470..
1,033,508..
1,042,982.
1,062,061..
1,084,028..
1,068,181.
1,093,901..
1,096,384.
1,110,041.
1,124,949.
1,131,584..
1,140,000.
1,148,247..
1,157,541..
1,180,152..
1,180,389..
1,180,930..



1,184^

New daaB 7JS, variable float
chamber Pleasure:

877,890

903.096.

1,103,802

1,167,457

New class 8, carburetors, pro-
portioning flow, aspiiaans,
ahisle fixed fUel inlet, mul-
tiple air inlets, valved for

"MR=.

828,228

9ii',34o".'!I!I!!!'.!!!iiiii

920,642.

029,280.

944,048.

970,916.



965,67a.
997,232..
996^355..



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Online LibraryUnited States. National Advisory Committee for AerAnnual report of the National Advisory Committee for Aeronautics → online text (page 46 of 77)