Brake Chamber Cooling Line for Hydraulic System

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Hydraulic braking systems experience significant heating in the brake chamber due to friction, leading to oil degradation and reduced brake lifetime, necessitating a solution to minimize heating and maintain fluid freshness.

Innovation Solution

Incorporating a cooling line that selectively connects to the brake chamber to renew the fluid, ensuring a cooling flow rate greater than or equal to twice the chamber volume per minute, and utilizing a pressure regulating valve to manage fluid pressure and actuation levels, with optional features like multiple dynamic brakes and a secondary hydraulic circuit for enhanced cooling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If the brake is actuated to provide friction braking, then the braking force is generated, but the brake chamber experiences significant heating that degrades the oil and reduces brake lifetime

Engineering Contradiction:
Improvebraking forceVSAvoidbrake chamber temperature
Core Design Contradiction:
ForceVSTemperature

Solution Approach 1:

The cooling line is pre-configured and connected to the brake chamber, allowing cooling fluid to be introduced before or during the braking operation to prevent excessive temperature rise in advance

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A cooling fluid is introduced as an intermediary substance between the heat source (brake friction) and the brake chamber, absorbing heat and preventing oil degradation while maintaining braking functionality

Inventive Principle:
Principle #24Intermediary (Mediator)

2Temperature

If the brake chamber is cooled by renewing the fluid, then the temperature is reduced and oil degradation is prevented, but the system complexity increases with additional cooling components

Engineering Contradiction:
Improvebrake chamber temperatureVSAvoidcooling system complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The cooling line utilizes the existing hydraulic circuit infrastructure, allowing the same fluid circulation system to serve both braking and cooling functions, thereby avoiding additional dedicated cooling components

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

Solution Approach 2:

The cooling function is merged with the existing hydraulic brake system by integrating the cooling line into the brake chamber, combining two functions (braking and cooling) into a single integrated system

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

The solution effectively cools the brake chamber, preventing oil overheating and extending brake system lifespan by continuously renewing the fluid, regardless of brake actuation status.

Implementation Method 1

a cooling line of the chamber, designed to renew the fluid contained in the chamber to provide for the cooling of said chamber

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 2

During actuation of this brake, friction causes considerable heating of the brake

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS9726244B2Braking system equipped with cooling means
Publication Date: 2017.08.08 POCLAIN HYDRAULICS IND
  • US9726244B2 patent drawing
  • US9726244B2 patent drawing
  • US9726244B2 patent drawing

AI summary

The invention relates to a braking system (1) including:a dynamic brake (10), including a hydraulic ram (11), including a cylinder (12), a piston (13) movable in the cylinder (12), and a chamber (14) capable of being filled to displace the piston within the cylinder and actuate the brake,a circuit (20) for feeding the brake, including a reservoir (21) a pump (22) and a brake feed line (26),a brake control device (30), including a fluid pressure regulating valve (32) in the brake chamber, and progressive control (31), the valve including a path connected to the feed line, a path connected to the reservoir, and a path connected to the brake chamber, and being designed to selectively connect the path connected to the chamber to one or the other of the other paths, to deliver a predetermined pressure into the chamber according to a degree of actuation of the control,the braking system being characterized in that it further includes a chamber cooling line (40), designed to renew the fluid contained in the chamber to ensure cooling of said chamber.