Stellantis PF.90347 Performance Specification - Air Intake Systems - Air Cleaner and Duct Assemblies

Published by Stellantis, the multinational automotive manufacturing company formed by the merger of Italian-American Fiat Chrysler Automobiles and the French PSA Group "The Stellantis standard PF.90347 “Performance specification - Air induction systems - Air cleaner and duct assemblies” describes the environmental, physical, electrical, mechanical, functional, regulatory and durability requirements for air induction systems.

Air induction systems are primarily required to provide clean, filtered air to an internal combustion engine and reduce noise. Additional functions may include supplemental crankcase ventilation and scavenging systems with hose connections to the clean side duct or air cleaner cover.

Air induction systems include all components located above the throttle body on a non-boosted engine or above the compressor inlet on a boosted engine. These systems generally include three primary subassemblies: the dirty-side duct, the air cleaner, and the clean-side duct, as shown in the table titled "Air induction system subsystems" provided in the standard.

Assembly components may include air filters, hydrocarbon adsorbers, resonators, crankcase hoses, isolators, sensors, and fasteners. Because air induction system design is highly dependent on available package space in each vehicle and engine application, the location and types of components vary significantly.

Products and processes used in the production of products listed in this standard must comply with the requirements for worker and consumer health, worker safety, regulated substances, recycling, and environmental reporting according to the CS-9003 standard.

Mandatory or recommended tests included in this standard are intended to ensure compliance with the specification but do not relieve the responsible organization of the obligation to ensure that the component or system meets all environmental, physical, electrical, mechanical, functional, regulatory and durability requirements, including all applicable system interface requirements, as described in the standard, throughout the entire specified useful life.

A test plan (design verification plan and report) must be developed to verify and validate all required functions specified in this standard. The responsible organization must provide any additional testing deemed necessary to meet the functional requirements. The tables at the end of this standard provide a summary of all requirements and are used to develop the test plan.

Samples used for design verification must meet the specified drawing tolerance range. Design verification assemblies must also be representative of production, including common valve locations, inserts, vents, and parting lines. Production verification samples must meet statistical qualifications for the machine and production processes.

Each item in the test plan must be supported by a comprehensive test or laboratory procedure, as required. A test plan agreement by Stellantis does not relieve the responsible organization of its obligation to ensure that the component or system meets all environmental, physical, electrical, mechanical, functional, regulatory, and durability requirements within the organization's area of ​​responsibility, as described in the standard, for the specified useful life, including all relevant system interface requirements.

Where applicable, actual measurement values ​​for all tested samples should be entered into the design verification plan and report. Reports that provide a simple pass or fail result without adequate documentation will be rejected and returned until appropriate details are added.

The test methods defined in this standard are:

• Functional tests:
  • Load test
    • Surface load test
    • Feature load testing
    • Link integrity testing
    • Overpressure joint integrity testing
    • Virtual analysis of hoop stress under clamp load
  • Low temperature impact test
  • Molded clip/latch loop testing
  • Air filter service test
  • Push (ergonomics) test
  • Tensile test
    • Threaded insert tensile test
    • Self-tapping fastener tensile test
    • Subcomponent tensile test
    • Channel tensile test
    • Small hose tensile test
    • Water cap pull test
    • Assembly or attached component testing
  • Fastener testing
    • Scrape test
    • Residual torque test
    • Threaded insert torque testing
  • Restriction testing
    • Prediction of pressure loss and flow behavior
    • Pressure loss bench test
  • Volumetric efficiency estimation
  • Mold flow prediction
  • Air cleaner creep prediction and compression analysis
  • Airborne noise, vibration and harshness testing
    • Snorkel noise estimation
    • Transmission loss test
    • Flow-borne noise testing
  • Structure-borne noise, vibration and harshness testing
    • Panel inertance test
    • Emitted noise estimation
    • Bracket hardness
  • Leakage control (seal test)
    • Leakage rate test
    • Dust vortex test
    • Rise channel test over ambient temperature
  • Vacuum collapse test
  • Heat / vibration test
    • Engine program testing
    • Body program test
  • Engine rotation test
  • High temperature motor rotation test
  • Water cap cyclic test
  • Individual bracket durability analysis
  • Engine-mounted air induction system durability analysis
  • Pre-separator test
  • Water tightness by immersion
• Security and regulatory testing
  • Homologation (approval)
  • Evaporative emissions (component and vehicle tests)
  • Legal passing noise (vehicle test)
• Reliability / durability tests
  • System and vehicle level testing
  • Design failure modes and effects analysis
  • Noise, vibration and harshness - Snorkel noise (vehicle test)
  • Noise, vibration and harshness - Emitted noise (vehicle testing)
  • Water intake - Water passage (vehicle test)
  • Water intake - Rain (vehicle testing)
  • Snow swallowing (vehicle test)
  • Rise above ambient temperature (vehicle test)
  • Durability - thermal protection (vehicle testing)
  • Durability (vehicle testing)
  • Corrosion (vehicle testing)
  • Positive crankcase ventilation - Freeze test (vehicle test)
  • Power rating test (motor test)

Our organization, which has been supporting businesses across all sectors for years through a wide range of testing, measurement, analysis, and evaluation activities, boasts a strong team of employees who closely follow global developments in science and technology and are constantly improving themselves. In this context, we also provide testing services in accordance with the "Stellantis PF.90347 Performance Specification - Air Intake Systems - Air Purifier and Duct Installation" standard.