---
title: "Fuel Pump"
industry: "Motor Vehicle Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:FUEL_PUMP"
  data_integrity_hash: "97922447692cca306d0dc33f9c23541f"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:FUEL_PUMP"
  data_source_uri: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/fuel-pump.md"
  official_resource_url: "https://cnfx.com/industry/motor-vehicle-manufacturing/product/fuel-pump"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "2.5-6.0 bar (36-87 psi)"
    unit: "L/h"
engineering_limits:
  max_safe_operating_point:
    value: 1.8
    unit: "bar"
    consequence: "Cavitation-induced vapor lock occurs when local pressure drops below fuel vapor pressure (approximately 0.5 bar for gasoline at 25°C), creating vapor bubbles that collapse violently causing pitting and erosion on impeller surfaces"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Continuous operation at 95°C fuel temperature exceeding 2 hours"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Integrate PTC thermistor (R25=100Ω, TCR=0.68%/K) with cutoff at 85°C and implement fuel recirculation cooling loop"
  - node_2:
      trigger: "Particulate contamination exceeding ISO 4406 18/16/13 cleanliness level"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Install 10μm absolute filtration with β₁₀≥200 and implement condition monitoring via current signature analysis detecting &gt;15% harmonic distortion"
bom_nodes:
  electric-motor:
    type: "part"
    urn: "URN:CNFX:ME:ELECTRIC_MOTOR"
    interface_type: "physical-logic-coupled"
  impellerroller-cell:
    type: "part"
    urn: "URN:CNFX:ME:IMPELLERROLLER_CELL"
    interface_type: "physical-logic-coupled"
  inlet-strainersock:
    type: "component"
    urn: "URN:CNFX:ME:INLET_STRAINERSOCK"
    interface_type: "physical-logic-coupled"
  pressure-relief-valve:
    type: "part"
    urn: "URN:CNFX:ME:PRESSURE_RELIEF_VALVE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 16330:2013 (RECIPROCATING POSITIVE DISPLACEMENT PUMPS AND PUMP UNITS - TECHNICAL REQUIREMENTS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/fuel-pump.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "a1a967fbd58a08977d51cd3b11defc3c8f9eea5eee2172063c329a9fd4d05ac0"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Fuel Pump

## 1. Technical Definition
A mechanical or electrical device that delivers fuel from the fuel tank to the engine at the required pressure and flow rate.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **2.5-6.0 bar (36-87 psi)**. Failure boundary: **Pressure drop below 1.8 bar (26 psi) or exceeding 7.5 bar (109 psi) for &gt;30 seconds**, Mechanism: **Cavitation-induced vapor lock occurs when local pressure drops below fuel vapor pressure (approximately 0.5 bar for gasoline at 25°C), creating vapor bubbles that collapse violently causing pitting and erosion on impeller surfaces**.

### 2.1 Analytical Physics Model
Governed by the **Darcy-Weisbach Pressure Drop**:

> **Primary Equation**: $\Delta P = f \cdot \frac{L}{D} \cdot \frac{\rho v^2}{2}$  
> **Engineering Impact**: Critical for sizing CIP (Clean-In-Place) pump heads.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| f | Friction Factor | Engineering Constant |
| L | Pipe Length | Engineering Constant |
| v | Velocity | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Continuous operation at 95°C fuel temperature exceeding 2 hours | 8 | Thermal expansion mismatch between aluminum housing (α=23.1×10⁻⁶/K) and steel shaft (α=11.0×10⁻⁶/K) causing bearing seizure | Integrate PTC thermistor (R25=100Ω, TCR=0.68%/K) with cutoff at 85°C and implement fuel recirculation cooling loop |
| Particulate contamination exceeding ISO 4406 18/16/13 cleanliness level | 8 | Abrasive wear on carbon brush-commutator interface increasing contact resistance from 0.02Ω to &gt;0.5Ω | Install 10μm absolute filtration with β₁₀≥200 and implement condition monitoring via current signature analysis detecting &gt;15% harmonic distortion |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | L/h | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Electric Motor](https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/electric-motor.md) `(Standalone System)`
- [Impeller/Roller Cell](https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/impellerroller-cell.md) `(Standalone System)`
- [Pressure Relief Valve](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/pressure-relief-valve.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Fuel Pressure Regulator**, **Fuel Filter Assembly**, **Fuel Rail Assembly**  
**Downstream Applications**: Internal Combustion Engine, Complete Vehicle Assembly, Fuel Delivery System  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What are the key components of this fuel pump?
**A**: This fuel pump includes an electric motor, impeller/roller cell for fuel movement, inlet strainer/sock for filtration, and a pressure relief valve to maintain optimal system pressure.

### Q: What materials are used in construction for durability?
**A**: Constructed with stainless steel for corrosion resistance, plastic polymers for housing, copper windings in the motor, and neodymium magnets for efficient operation.

### Q: How does this fuel pump ensure proper engine performance?
**A**: It delivers fuel from the tank to the engine at precisely controlled pressure and flow rates, ensuring consistent fuel delivery for optimal combustion and engine efficiency.

## 6. Manufacturing Compliance
- ISO 16330:2013 (RECIPROCATING POSITIVE DISPLACEMENT PUMPS AND PUMP UNITS - TECHNICAL REQUIREMENTS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Fuel Pump](https://cnfx.com/industry/motor-vehicle-manufacturing/product/fuel-pump)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: FUEL_PUMP | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: a8a100ea
