P. 1 

# OAR Box 1147 Prepped by Ollie Stewart

Document

Number: 

# 190 ) IV-E-6

4 Docket Number: 

# A-87-1 1

Printed 4/22/2008 2:42:57

PM Sheet 190 of 242P. 2
UNITE D STATE S ENVIRONMENTA L PROTECTIO N AGENC Y AN N ARBOR . MICHIGA N 4810 5 OFFIC E O F AI R AN D RAOIATION^ . ,/gy . AU G I 2 1988 MEMORANDU

M SUBJECT : FROM : TO : Meeting Wit h AP I

Joh n F . Anderson , Senio r Projec t Manage r Standard s Developmen t an d Suppor t Branc h Publi c Docke t A-87-1 1 

### ''A*J^^

On Jul y29 , 198 8 a brie f meeting wa s hel d wit h representative s o f AP I (se e attache d attendanc e list) . At thi s meeting AP I presente d dat a o n two onboar d equippe d car s whic h theyhav e developed . The dat a presente d ar e give n i n th e attache d handou t fro mth e meeting . AP I als o indicate d it s plan s t o d o furthe r work on vehicl e purg e rat e measurement s an d o n vehicl e performanc e unde r th e newEPAapproac h t o caniste r conditioning . Attachment s 0629 wP. 3

Meeting wit h AP I Jul y29 , 198 8 Name ' Representing Joh n Anderso n EP A E.P . Crocket t AP I Ra yCampio n EUSA Georg e Musse r Exxo n Researc h Walte r C . Retzsc h AP I Hug h F . Shanno n Exxo n Researc h Che t Franc e EP A Pau l Laing EPA Pete r Hutchin s EP A Charle s Gra

yEP AAP I - EP

A JUL Y28 , 198 8 r j

ONBOARD CONTRO L O F REFUELIN G EMISSION S

IMPROVE D VEHICL E DESIG N i *

_ j

### ONBOAR D REFUELIN G CANISTE R

•CANISTE R TECHNOLOG YUSE D T O CONTRO LEVAPORATIV E EMISSION S O N AL L CAR S SINC E 197 1

•INITIA LWOR

KBYAP I AN D EP ADEMONSTRATE D FEASIBILIT YO F ONBOAR D CONTRO LFO R REFUELIN G EMISSION S LE D T O EP ARULEMAKIN G PROPOSA L NEE D T O ADDRES S NHTSA/DO TCONCERN S ABOU TSAFETYO F CANISTE R SYSTEM S BECAM E MAJO R OBJECTIV E

- NE U U.S . PRODUCTIO N VEHICLE S USE D RESULTE D I N IMPROVE D DESIGNS , SAFE R SYSTEN S AN D RETAINE D GOOD EMISSIO N CONTRO L

bi

### MAJO R DESIG N ELEMENT S

•PRODUCTIO N EVAPORATIV E CONTRO L SYSTEN S USE D

- N O CHANGE S T O BASI C VEHICL E OPERATIO N CANISTE R T O CONTRO L BQI H EVAPORATIV E AN D REFUELIN G EMISSION S TAKE N OU TO F ENGIN E COMPARTMENT

- MOUNTE D INSID E FRAME , NEA R FUE L TAN K

•USE S "LIQUI D SEAL " APPROAC H

•FUE L TAN KN O LONGE R UNDE R PRESSUR E

- o

## VEHICL E CHARACTERISTIC S

198 7 BUIC KLESABR E 198 8 FORDTAURU S POR T FUEL-INJECTE DMULTI-POIN T FUE L INJECTE D 3. 8 LITE R3. 0 LITER 1 8 GALLON TANK1 6 GALLON TAN K SID E FIL L SID E FIL L

T J

### BACKGROUN D DAT A O N PRODUCTIO

N EC S SYSTEM S 

## BUIC K SEPARAT E 1/2 " FUE L TANKVEN T 

## EQRD SEPARAT E 5/8 " FUE L TAN KVEN T 

### 0.057 " ORIFIC E BETWEE N TANKAND CANISTE R 

### 0.030 " ORIFIC E BETWEEN TAN KAND CANISTE R 

### 0.078 " ORIFIC E BETWEE N CANISTE R AND PORTE D MANIFOL D PURG E PURG E ENTER S VI A PC V ABOVE 5 MP

H COOLAN T TEM P ABOVE ~ 12 5 O F 1 MINUT E LA

GAFTE RENGIN E ON 3MI N 25SE C LA

GAFTE RENGIN E O N THROTTL E POSITION SENSO R VOLTAG E > 0.7 5 SOLENOI D VALVE DUT YCYCL E MODULATE D SOLENOI D VALVE DUT YCYCLE-TIM E MODULATE D

T J b o

## PRINCIPA L ELEMENT S O F

ENHANCE D ONBOAR D SYSTE M

Standar d Fillpip e Wit h Ven t Reroute d t o Caniste r Purge d H C Vapor s T o Engin e Openin g Fro m Tan k an d Rollove r Valv e Enlarge d Charcoa l Caniste r

H C Vapor s

« 0 2

### BUIC KREFUELIN G DAT A

BAS E CA R 

### CONTROLLE DCA

R PROPOSE DSTANDARD REFUELIN G 

### RAT E GAL/MI N 9. 5 9. 5

- » M • • 

### GRAMS/GA L



### H C 4.8 6 0.0 5 0.1 0 % CONTRO I

— 

### 99. 0

« • «


### REGULATE D EMISSION S



### STANDARD S BAS E CA R 

### CONTROLLE DCA

R _C1 L

G/N I 3. 4 2.0 7 

### 1.5 0 JU L

G/N I 

### 0.4 1 0.2 8 0.2 7 

### NO x

G/M I 1.0 0 v.Z- w 

### 0.2 5 _£VA

P G/TES T 2. 0 0.5 8 0.4 3

T lAV G

AV G AVERAG E 

### FUE L RAT S GM P 

### 9. 4 9. 7 9. 5 9. 5 9. 6

- 

### 9. 6

- 

### 9. 7 9. 3
9. 8 9. 9 

## BUIC

KREFUELIN GDAT A (5 L CANISTER ) 

## 9 RV P

BAS E 

### VEHICL E .



### REFUELIN GEMISSION ? GRAMS/GA L 4.9 9 5.0 1 4.5 7 4.8 6 CONTROLLE DVEHICL E



## 10. 5 RV P 0.0 7 0.0 8 0.0 5 0.0 1 0.0 5 0.0 1 

## 0.0 7 0.0 5
0.0 2 0.0 1 \

CONTRO L

-

-
— 

### 98.5 % 98.4 % 99.0 % 99.8 % 99.0 % 99.8 % 4 

## 98.6 % 99.0 % i 

### 99.6 % 99.8 %

TBUIC KREGULATE DEMISSION S

AV G

AV G 

### C

O G/ M
2.02 9 2.10 7 2.06 8
1.45 4 1.76 5 1.49 5 1.29 1 1.501 * 

### H

C G/ M
0.27 1 0.29 1 0.28 1
0.27 1 0.29 5 0.24 7 0.25 3 0.26 7 HO

X G/ M

c- 0.27 0 0.28 4 0.27 7 DIURNA L

G/ T BAS E VEHICL E 0.2 4 0.4 2 0.3 3 CONTROLLE DVEHICL E 0.28 3 0.29 0 0.22 5 0.18 6 0.24 6 -

0.2 0 0.3 5 0.1 4 0.2 3 HO T SOA K

G/ T
0.2 7 0.2 2 0.2 5

- 0.1 6 0.3 4 0.1 5 0.2 2 TOTA L EVA P

G/ T
0.5 1 0.6 4 0.5 8

- 0.3 6 0.6 9 0.2 9 0.4 3

* CONTROLLE D CA

RCARBO

N MONOXID E I S SIGNIFICANTLYLOWERTHA N BAS E CAR .

## REFUELIN Q CANISTE R PLACEMEN T 198 8 TAURU S

Lin e t o Caniste r To Tan k

2835- 0 1

T J E o

### BAS E CA

R CONTROLLE D CA

R PROPOSE D STANDAR D TAURU S REFUELINGDAT A REFUELIN G RAT E GAL/NI N 9. 6 9. 7

m . mmmm 

### GRANS/GA L

H C 

### 5. 0 0.0 5 0.1 0 

## % CONTRO L

99. 0

REGULATE D EMISSION S

STANDARD S BAS E CA R CONTROLLE D CA

R JCJ L

G/N I 3. 4 1.3 8 1.0 8 J U L

G/N I 0.4 1 0.1 8 0.1 5 NO

x G/N I 1.0 0 0.3 9 0.4 2 

### JVA P

6/TES T 2. 0 0.2 2 0.7 7

T lTAURU S REFUELIN G DATA

AVG .

AVG . 

### GM

P

. . - 

### 9. 7 

## 9. 5 4.9 5 9. 3 9. 5

- 

### 9. 8 9. 3 9. 8 9. 6 9. 8 9. 7
9. 8 9. 8 3.5 L CANISTE R



### 9 RYP G/GA L BAS E VEHICL E 5.0 2 5.1 2 4.7 2 CONTRQUE P VEHICL E

0.0 7 0.0 7 0.0 5 0.0 5 0.0 4 0.0 5 0.0 4 0.0 2 

## 0.0 9 0.0 5 

## 10, 5 RV P 0.0 2 0.0 2 % CONTRO L

- -
•- -

- - 

### 98. 6 98. 6 99. 0 99. 0 99. 2 99. 0 99. 2 99. 4 

## 28x 2 98. 9 99. 6 99. 6

T J _EJ i

### TAURU S PECULATE DEMISSION S

AV G 

## C O G/ M


### 1.41 0 1.43 4 1.25 4 1.40 5 1.37 6 

## HC

G/ M


### 0.17 4 0.18 0 0.19 4 0.18 3 0.18 3 NO

X G/ M 

### DIURNA L

G/ T 

### BAS E VEHICL E 0.45 7 0.34 6 0.37 2 0.37 4 0.38 7 0.0 7

0.0 7 0.1 3 0.1 4 1.1 0 

## CONTROLLE DVEHICLE H O T SOA KTOTA L

G/ T G/ T
0.1 2 0.1 0 0.1 2 0.1 2 0.1 2 Q.1 9 0.1 7 0.2 5 0.2 6 0.2 2
1.17 5 - 0.44 7 0.4 0 0.2 8 0.6 8 1.08 3 0.14 6 0.43 7 0.5 5 0.4 2 0.9 7 0.96 7 0.14 3 0.37 5 0.3 8 0.3 0 0.6 8 AV G1.075 * 0.14 5 0.42 0 0.4 4 0.3 7 0.7 7 CONTROLLE DCA RCARBO N MONOXID E I S SIGNIFICANTL YLOWE RTHA N BAS E CAR .

### 5 0 MPH 4 0 MPH 3 5 MP H 3 0 MP H 2 5 MP H 2 0 MPH LA- 4 GRAN S H C PURGE D 1 LA- 4 FRO N SATURATIO

N PURG

E CHARACTERISTIC S

• J:u i H O 1. 2 LP M 0. 5 LP M 0 0 0 0 1. 9 1 1 

## BUIC K

N N PWOAR D 

### 13. 4

M M B 

### 0 0 0 0 4. 2 3 4 • :*• • ' - i



### FOR D PRODUCTIO

N & ONBOAR

D U. O 11. 0 11. 0 11. 0 11. 0 0 4. 5 3 5

iP.1 8



# BUIC K PURG E DRIVEDOW N

ABILIT YT O ABSOR B H C grtttntt 16 0

14 0 - 12 0 - 10 0

2 8 4 6

SIMULATE D DA

Y
1 SIMULATE D DA

Y- 1 DIURNA L •6 LA-4' 8 WIT H 1 HOU R HO TSOA KP.1 9



# FOR D PURG E DRIVEDOWN

ABILIT YT O ABSOR B H C grwn * 18 0

14 0 - 12 0 10 0 - S O S O 4 0 2 0 : ; ; . : 1 1

; ' 1 ) ; i 1 

# y^^ \ / \ \ f i i i i i 1 „_. , 8 4 8IMULATE D DA

Y
1 SIMULATE D DM

T•1 DIURNA L •8 LA-4' 8 WIT H 1 HOU R HO TSOA KAVERAG E CANISTE R PERFORMANC E Dodg o

E O l o X S o Dail yTEa l Saquanc a I s 3 LA- 4 Cycle s Space d WH h 1 Hou rNo t Soaftn FoMowa d B yOn a Diurna l Taa l

1 Oa y 1'Da y 2 (Oa

y a 1 Oay 4 ' Oa

y S 1 Oa y•» Oa y 7 1 Oa y t'Oayt '
!P.2 1 DODG E CANISTE R WEIGHTGAI N

ONBOAR D REFUEUN G SrSTE M 17 0

—r~ 2 4 i — 1 2 1 6 (Thouaondi ) MILEAG E D 7/l3/ » 2 0 2 8

## OTHE RFUE L SYSTEM CONSIDERATION S

"RUNNINGLOSSES " FRO MHO T FUE L TAN K VAPOR S AR E O F INCREASING CONCERNT O EP A

• MAN Y CURREN T PRODUCTIO NCAR S OPERAT E UIT H PRESSURIZE D FUE L TANK S HYDROCARBON S RELEASE D T O ATMOSPHER E UHE NCA P OPENE D ENHANCE D CANISTE R BUIL T INT O FRAME UIL L PROVID E GREATERCONTRO L O F THES E EMISSION S

### SAFET YADVANTAGE S

•CANISTE R SYSTE M RELOCATE D FRO M ENGIN E COMPARTMENTT O PROTECTE D POSITIO N WITHI N REA R FRAM E SHORTE R VAPO R LIN E T O CANISTER , REFUELIN G VEN TLIN E ELIMINATED , N O VAPO R - LIQUI D SEPARATO R NEEDE D

•FUE LTANK S N O LONGE R UNDE R PRESSUR E

•FEUE R FUE LTAN KPENETRATION S OVERAL LDESIG N LES S COMPLE XTHA N CURREN TPRODUCTIO N EVAPORATIV E CONTRO LSYSTEM S

r o c o

### CONCLUSION S

•LES S COMPLE XTHA N CURREN TEVAPORATIV E CONTRO LSYSTE M

•CANISTE R I N ACRASH/WORTH YLOCATIO N I N VEHICL E FRAME/PLATFOR M

•FUE LTAN KNO LONGE R UNDE R PRESSUR E

•99 % CONTRO LO F REFUELIN G EMISSION S DEMONSTRATE D

•TAILPIP E EMISSIO N CONTRO LMAINTAINE D O R IMPROVE D

- LOUE R C

O

r oP.2 5

CO C D C O 

# s oo vo

as t •T O « C M v o r s N es i N • • • •« * * t r o

C M C D U

J C J U J u i c o c q c o 

# s r s r s C M

r s 

# 3

C J « t ir t N r s C M r o

U J as ro ] f H * t i n o oo as C M CM as

C M O t

r o • is . < H i> 4 C M • C M C M O as • r s r H *** l m i ^ f H 0 0

U l C J X C D as rsi oo

C M C M CM | C M

V O < t I A U )

i n v o o t • * rs , ^ i n

C D < C DAV G CO EFFEC T



### Ctt

_C

O BAG I C

O BA G 2 C

O BA G 3 GM/MIL E GM S GMS GM S



### FOR D BAS E VEHICL E 

### 1.41 0 1.43 4 1.25 4 

### 1.40 5 1.37 6 17.3 6

19.2 0 15.9 7 

### 18.7 9 17.8 3 

### 0.6 1

0.4 3 0.3 9 

### 0.3 8 0.4 5 4.3 8

3.6 4 3.7 6 

### 3.6 3 3.8 5 CONTROLLE D VEHICL E 3.7 3 3.8 8 

### AV G

### 1.07 5 13.1 1 

### 0.3 1 3.7 0

1.17 5 1.08 3 

### 0.96 7 1.07 5 14.6 0

13.1 0 

## 1LM 13.1 1 0.4 1



### 0.2 5 

### JL2 Z 0.3 1

r o 0 )

### TAURU S PURS E DAT A

DIURNAL NO . 1



### 2 3 4 5 STARTINGWEIGH T PRECONDITIONINGLA- 4 OVERNIGH T SOA

K DIURNAL TES T TAILPIP E EMISSION S HO T SOA

KTES T 

### BAS E VEHICL E

RELATIVE EC

S CANISTE RWEIGH T GRAM S



### + 2 0 + 1 +2 1 + 1 + 3 + 5

0 + 2 +2 2 0 + 2 1 9

3 9 5 9 7 4 7 9 7 9 3 4 3 6 5 4 2 0 2 1 4 3

5 9 7 6 8 1 8 1 3 8 4 1 5 8 2 3 2 4

# AP I REFUEUN G SYSTE M

r o o oPURG E VACUU M VALV E CANISTE R VEN T

PURG E VACUU M LIN E FIL L PIP E ONBOAR D CANISTE R FUE L TAN K

VEN TLIN E FUELTAN K AP I REFUELIN G SYSTE MREFUEUN G VEN T UN E PURG E VACUU M LIN E \ VAPO R VEN TUN E

FILLPIP E FUELTAN K
PURG E VACUU M VALV E EVAPORATIV E CANISTE R

CURREN TEVAPORATIV E SYSTE MP.3 1 •z: : T . • i ,r'<-< mummmm 'WZ' yim "M "'VAPO R VEN TLIN E T O EVAPORATIV E CANISTE R ROLLOVE R VEN TVALVE FIL L PIP E

REFUELIN G VEN TLIN EFUE L TAN KVEN TLIN E T O ONBOAR D CANISTE R ROLLOVE R VEN TVALVE

FIL L PIP EFUE L LINE S ROLLOVER/VEN T VALVE

PURG E VACUU M LIN E FUELTAN K VEN TLIN E

FUELTAN K VEN T ONBOAR D CANISTE R 1EXISTIN G FRAM E CROSSMEMBE R PURG E VACUU M LIN E

FUELTAN K VEN TLIN E ONBOAR D CANISTE R EXISTIN G FRAM E RAI L

VEN T FUELTAN K

# ADVANTAGE S N o Pressur

e Buildu p i n Fue l Tan k Caniste ri n Rea r Protecte d Positio n Expose d Refuelin g Ven t Lin e Remove d fro m Fil l Pip e Tan k Vent s Throug h Short Protecte d Lin e t o Caniste r