Shared Air Intake Layout for Fuel Cell and Pneumatic Compressors

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Current air supply systems for fuel cells and pneumatic systems in vehicles require multiple intake openings and separate air filtration, leading to inefficiencies and increased complexity.

Innovation Solution

An integrated air supply system that uses a single intake opening for both fuel cell and pneumatic system compressors, with a common air filter and optional separate filters for each system, allowing the fuel cell compressor to function as a blower for the pneumatic system compressor, reducing the need for additional lines and filters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If separate intake openings and air filtration systems are used for fuel cell and pneumatic system compressors, then each system can be independently supplied with air, but the device complexity and number of components increase

Engineering Contradiction:
Improveindependent air supplyVSAvoidnumber of intake openings and filters
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines separate air supply systems into a single integrated system where both the fuel cell compressor and pneumatic system compressor share a common intake opening and air filter. This merging reduces the number of components while maintaining functional independence through separate compression chambers and outlet lines, directly resolving the contradiction between reliability and device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The common air filter and intake opening serve multiple functions by supplying air to both the fuel cell compressor and pneumatic system compressor simultaneously. This multi-functional design eliminates redundant components while ensuring both systems receive adequate air supply, addressing the technical contradiction effectively.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If multiple separate lines are used to connect intake openings to each compressor, then each compressor has dedicated air supply, but the line requirements and system complexity increase

Engineering Contradiction:
Improvededicated air supplyVSAvoidnumber of intake lines
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges multiple separate intake lines into a single common intake line that branches to both compressors after the air filter. This reduces the total number of lines while maintaining dedicated supply paths through the branching configuration, resolving the contradiction between reliability and device complexity.

Inventive Principle:
Principle #5Merging (Combining)

3Quantity of substance

If the pneumatic system compressor induces air directly from the intake opening, then it has sufficient air supply, but the fuel cell compressor cannot assist the pneumatic system compressor

Engineering Contradiction:
Improveair supply quantityVSAvoidenergy consumption
Core Design Contradiction:
Quantity of substanceVSUse of energy by moving object

Solution Approach 1:

The patent introduces a common air filter and shared intake line as intermediaries between the intake opening and both compressors. This intermediary structure enables the fuel cell compressor to assist the pneumatic system compressor by providing pre-filtered air through the common line, reducing the energy consumption of the pneumatic system compressor while maintaining adequate air supply quantity.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Reliability

If separate air filters are used for each compressor, then each system has independent filtration, but the number of filters and system complexity increase

Engineering Contradiction:
Improveindependent filtrationVSAvoidnumber of air filters
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges separate air filtration systems into a single common air filter that serves both the fuel cell compressor and pneumatic system compressor. This unified filtration approach reduces the number of filters while maintaining effective air cleaning for both systems, directly resolving the contradiction between reliability and device complexity.

Inventive Principle:
Principle #5Merging (Combining)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This configuration reduces the number of intake openings, minimizes line requirements, and enhances energy efficiency by allowing the fuel cell compressor to assist the pneumatic system compressor, thereby lowering energy consumption and improving airflow resistance.

Implementation Method 1

a fuel cell compressor (2) which is designed to induct air from its intake side (2.1) and by way of its outlet side (2.2) convey said air to a fuel cell outlet (1.1)

Methodology Applied
Scientific EffectCompression: Compression

Implementation Method 2

a pneumatic system compressor (3) which is designed to induct air from its intake side (3.1) and by way of its outlet side (3.2) convey said air to a pneumatic system outlet (1.2)

Methodology Applied
Scientific EffectCompression: Compression

Implementation Method 3

allowing the fuel cell compressor to function as a blower for the pneumatic system compressor, reducing the need for additional lines and filters

Methodology Applied
Scientific EffectPressure gradient: Pressure Gradient

Data Source

PatentUS20250015326A1Air Supply of Fuel Cell and Pneumatic System
Publication Date: 2025.01.09 KNORR BREMSE SYSTEME FUER NUTZFAHIZEUGE GMBH
  • US20250015326A1 patent drawing

AI summary

An air supply system for a fuel cell unit and a pneumatic system includes: a fuel cell compressor which is designed to induct air from its intake side and by way of its outlet side convey said air to a fuel cell outlet of the air supply system, the fuel cell outlet being able to be connected to a fuel cell unit; a pneumatic system compressor which is designed to induct air from its intake side and by way of its outlet side convey the air to a pneumatic system outlet of the air supply system, the pneumatic system outlet being able to be connected to a pneumatic system; an intake opening; a fuel cell intake line which connects the intake side of the fuel cell compressor to the intake opening; and a pneumatic system intake line which connects the intake side of the pneumatic system compressor to the intake opening. The fuel cell compressor and the pneumatic system compressor can induct air by way of the intake opening.