california vehicle fill pipe specifications 2018... · • tests quality of nozzle seal to fill...
TRANSCRIPT
![Page 1: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/1.jpg)
California Vehicle Fill Pipe
Specifications
Proposed Amendments
May 23, 2018
![Page 2: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/2.jpg)
How does fill pipe design impact
overpressure?
2
• 2015 CARB testing:• >1000 consumer fueling events
• Certain vehicles frequently had high Vapor to Liquid (V/L)
• Capless fill pipes:• Drain Holes
• Capped fill pipes:• Deep locking lip requiring large force to latch nozzle
• Both capless and capped:• Items in access zone blocking nozzle sealing
Drain Hole
Public Workshop May 2018
![Page 3: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/3.jpg)
CHANGES TO THE SPECIFICATIONS
Plans for Improvements
Public Workshop May 2018 3
![Page 4: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/4.jpg)
Collaboration with SAE and industry
• SAE Refueling Interface Task Force
• Auto, nozzle, and fill pipe manufacturers
• Assisted with developing many of the planned
changes
• Performed testing to support new standards
and dimensions
Public Workshop May 2018 4
![Page 5: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/5.jpg)
Goal: Restrict Open Ports to Atmosphere
Proposed change: add performance standard
• Tests quality of nozzle seal to fill pipe (interface)
• Compliance method:
• Bench test (surrogate to gas station testing)
• Removed V/L and Zero-leak Attestation options: since no
industry interest
Performance Specification
Public Workshop May 2018 5
Changed since Dec 2017 workshop
![Page 6: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/6.jpg)
Summary: Bench Test Standard
Development
1) Orifice testing
at gas station: 2.5
mm: Max orifice
for V/L <0.5
Bench
Test
Standard
2) 1.6 mm:
Adjusted w/ safety
factor to account
for recirc, etc
3) Standard is 2.5
slpm MAX @ 500
Pa vacuum, (leak
rate for 1.6 mm
orifice)
Public Workshop May 2018 6
![Page 7: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/7.jpg)
CARB’s Bench Test Method + Equipment
• Adjust vacuum supply: -500 Pascal @ pressure gage
• Output = leak rate in liters per minute @ flow meter
• Compare with standard: 2.5 liters per minute
Pressure
Gage
Flow
Meter
Vacuum
Supply
Fill Pipe
Plugged
Recirc Line
Plugged
If present
Hose
H900
Nozzle
Performance Specification
Public Workshop May 2018 7
No changes since December 2017 workshop
![Page 8: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/8.jpg)
DIMENSIONAL CHANGES
Public Workshop May 2018 8
![Page 9: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/9.jpg)
Access Zone Update: Why its needed
Boot overlaps fill
pipe
Dimensional Changes
Public Workshop May 2018 9
![Page 10: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/10.jpg)
Access Zone Update Plan
• Clarify and improve fill pipe’s access zone• To represent today’s nozzles
• Adds to current access zone in ISO 13331
• Purpose of access zone:• Leave space on vehicle for nozzle insertion
• The change makes room for concave nozzle boot• Allows boot to overlap fill pipe
• Enable boot to seal with fill pipe
• Working with SAE Refueling Interface Task Force
Dimensional Changes
Public Workshop May 2018 10
![Page 11: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/11.jpg)
Additional clearance to ISO 13331 access zone, proposed by CARB
J
A
Fill Pipe
Sealing
Surface CL
G
V
V
Section V-V
C
Actual Fill Pipe Dia.
Revision:May 2018
Public Workshop May 2018 11
Changed since Dec 2017 workshop
![Page 12: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/12.jpg)
Access Zone Update will affect:Fill Pipe With Outer Ring
• A current design on some cars
Two different insertion scenarios:
Outer ring
2. Boot fits within outer ring
1. Boot butts up against outer ring
Dimensional Changes
• Operator dependent
Public Workshop May 2018 12
![Page 13: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/13.jpg)
Locking Lip Depth
Example: Latched Nozzle
Dimensional Changes
Public Workshop May 2018 13
![Page 14: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/14.jpg)
Locking Lip Depth Update
Goal: reduce “loose latching”
• Current: 4-13 mm
• Planned change: 4-10 mm
• Easier to latch nozzle
• Insertion force increases dramatically > 10 mm
• Source: SAE nozzle insertion study
Dimensional Changes
Public Workshop May 2018 14
No changes since December 2017 workshop
![Page 15: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/15.jpg)
SAE nozzle insertion study
15
Dimensional Changes
Public Workshop May 2018
![Page 16: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/16.jpg)
Modify J1114’s Alternate Shape• Current Outer Diam. (OD) is too large (up to 61.6 mm)
• Results in about 1.7 mm of additional boot compression• Since contacts higher on conical boot
• Contributes to loose latching
• Proposal: Reduce OD to 57.9 mm (max) • Match with standard J1114
• Very similar to ISO 13331
Public Workshop May 2018 16
Dimensional ChangesAdded after Dec 2017 workshop
![Page 17: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/17.jpg)
Proposing to bring back Spitback
• Used to be a CA requirement prior to 2014
• CARB aligned with US EPA in 2014 and removed• Basis: Current ORVR testing is sufficient
• This was a mistake, since ORVR is tested with a nozzle w/o vapor recovery
• Using both assist and balance type nozzles• For testing Spitback and Pre-Mature Shut-off
Public Workshop May 2018 17
History:
![Page 18: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/18.jpg)
Implementation
• Proposed Phase-In*:
*Spitback effective MY 2022 on 100% of fleet
Public Workshop May 2018 18
Changed since Dec 2017 workshop
Model Year: % of Fleet:
2022 25%
2023 50%
2024 100%
![Page 19: California Vehicle Fill Pipe Specifications 2018... · • Tests quality of nozzle seal to fill pipe ... • Bench test (surrogate to gas station testing) • Removed V/L and Zero-leak](https://reader031.vdocuments.us/reader031/viewer/2022020317/5bb3a55109d3f2653c8c12c0/html5/thumbnails/19.jpg)
For More Information:
• Vehicle Fill Pipe:• Jason Gordon [email protected]
(626) 575-7068
• Draft Proposed Regulation Language:
https://www.arb.ca.gov/msprog/evap/evap.htm
In the “What’s New” section
• CARB current CA Fill Pipe Specifications:https://www.arb.ca.gov/msprog/onroad/cert/ldctp/ldctp.htm#fillpipe
Public Workshop May 2018 19