Vehicle Air Compressor Head Layout for Single-Side Hose Access

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Solution Overview

Problem

Existing vehicle air compressors face difficulties in connecting and disconnecting hoses to ports that open in multiple directions, making it challenging to access and manage fluid flows efficiently.

Innovation Solution

The air compressor design orients all intake, discharge, coolant inlet, and coolant outlet ports in a single plane, allowing for easy access and improved cooling through serpentine-shaped passages, with the inlet reed valve axis perpendicular to the crankcase axis, enhancing cooling efficiency and reducing unloader valve exposure to engine heat.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If ports are oriented in multiple directions away from multiple faces of the compressor, then the compressor can achieve compact design, but it becomes difficult to physically connect and disconnect hoses to these ports

Engineering Contradiction:

Improvecompressor sizeVSAvoidhose connection accessibility

Core Design Contradiction:

Volume of moving objectVSEase of operation

Solution Approach 1:

The patent repositions all four ports (air inlet, air outlet, coolant inlet, coolant outlet) to lie in a single common plane, transforming the spatial arrangement from three-dimensional multi-face distribution to two-dimensional planar alignment. This dimensional change allows hoses to be connected and disconnected easily from a single access direction while maintaining compact compressor dimensions.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Device complexity

If the inlet reed valve tongue axis is parallel to the crankcase longitudinal axis, then the valve structure is simple, but the unloader valve is exposed to high engine heat reducing efficiency

Engineering Contradiction:

Improvevalve structure complexityVSAvoidunloader valve temperature

Core Design Contradiction:

Device complexityVSTemperature

Solution Approach 1:

The patent positions the inlet reed valve tongue axis perpendicular to the crankcase longitudinal axis, creating an asymmetric orientation that strategically places the unloader valve away from the engine's heat source. This asymmetric arrangement reduces thermal exposure to the unloader valve, improving its operational efficiency while maintaining reasonable structural complexity.

Inventive Principle:

Principle #4Asymmetry

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

Facilitates easy hose connection and disconnection, improves cooling efficiency, and reduces unloader valve temperature, resulting in enhanced operational performance and accessibility.

Implementation Method 1

improves cooling efficiency

Methodology Applied

Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 2

serpentine-shaped passages

Methodology Applied

Scientific EffectConvection: Convection

Data Source

PatentUS20250376978A1Air compressor for a vehicle air braking system

Publication Date: 2025.12.11 KB INTELLECTUAL PROPERTY GMBH & CO KG

AI summary

A vehicle air compressor comprises a crankcase having a longitudinal central axis. The vehicle air compressor also comprises a head assembly including (i) a rear face that lies in a plane transverse to the longitudinal central axis of the crankcase, (ii) an air inlet port oriented in the same plane as the rear face, (iii) an air outlet port oriented in the same plane as the rear face, (iv) a coolant inlet port oriented in the same plane as the rear face, and (v) a coolant outlet port oriented in the same plane as the rear face.