Hydraulic unit

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Solution Overview

Problem

Existing multi-zone heating systems struggle with balancing energy usage and efficiency across different heating zones, leading to inefficiencies and difficulties in diagnosing and correcting faults.

Innovation Solution

A hydraulic unit with independently controllable valves, temperature and flow sensors, and a controller that dynamically adjusts the flow rate and temperature of each zone, allowing for precise control and optimization of energy use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single heat source supplies both hot water and heating zones, then system simplicity is maintained, but energy usage balancing and efficiency deteriorate

Engineering Contradiction:
Improvesystem simplicityVSAvoidenergy usage balancing
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The heating system is segmented into multiple independently controllable zones, each with its own flow control valve. This allows the single heat source to supply multiple zones while enabling independent energy management for each zone, resolving the contradiction between system simplicity and energy usage balancing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system incorporates dynamically adjustable flow control valves that can modulate water flow to each zone based on demand. This dynamic control enables efficient energy distribution across zones while maintaining a relatively simple single heat source architecture.

Inventive Principle:
Principle #15Dynamics

2Use of energy by moving object

If flow control devices are added to each zone for independent control, then energy efficiency improves, but device complexity increases

Engineering Contradiction:
Improveenergy efficiencyVSAvoiddevice complexity
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The flow control devices are designed with multi-functionality, serving both as control valves for energy efficiency and as integral parts of the zone distribution system. This universal design approach improves energy efficiency while minimizing the increase in overall device complexity.

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

3Difficulty of detecting and measuring

If multiple independently controllable valves and sensors are installed, then diagnostic capability improves, but system complexity increases

Engineering Contradiction:
Improvediagnostic capabilityVSAvoidsystem complexity
Core Design Contradiction:
Difficulty of detecting and measuringVSDevice complexity

Solution Approach 1:

Temperature and flow sensors are installed in each zone to provide feedback to the control system. This feedback mechanism enhances diagnostic capability by enabling monitoring of each zone's performance while integrating seamlessly into the existing control architecture, thus improving diagnostics without proportionally increasing complexity.

Inventive Principle:
Principle #23Feedback

4Loss of energy

If dynamic flow rate adjustment is implemented, then energy consumption reduces, but control system complexity increases

Engineering Contradiction:
Improveenergy consumptionVSAvoidcontrol system complexity
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The flow control valves are equipped with actuators that automatically adjust flow rates based on zone demand and system conditions. This self-service capability reduces energy consumption through dynamic optimization while minimizing the need for complex external control systems.

Inventive Principle:
Principle #25Self-service

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

Enhances system efficiency by balancing energy use across zones, reduces diagnostic time for faults, and enables remote monitoring and control, ensuring optimal performance and reduced energy consumption.

Implementation Method 1

a pump and a plurality of heating zones, at least one heating zone has a plurality of sub-zones and further comprising a hydraulic unit

Methodology Applied
Scientific EffectPump: Pump

Implementation Method 2

The hydraulic unit comprises a plurality of independently controllable valves, each of the independently controllable valves is associated with a supply to each of the heating zones

Methodology Applied
Scientific EffectValve: Valve

Implementation Method 3

a common heat source therefor... supply each of the heating zones with heated water from the common heat source

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentUS12590731B2Hydraulic unit
Publication Date: 2026.03.31 IDZV LTD
  • US12590731B2 patent drawing
  • US12590731B2 patent drawing
  • US12590731B2 patent drawing

AI summary

A hydraulic unit is for use in a multi zone heating system. The hydraulic unit comprises a variable output pump; a plurality of independently controllable valves, each valve being associated with one heating zone; and at least one temperature sensor. Each heating zone receives a heated water supply from a common heat source via the pump. The heating system includes a controller comprising a processor which receives signals from the at least one temperature sensor which processes the signals in accordance with control software. Command signals are sent to the pump and the plurality of independently controllable valves, to vary the flow rate of water from the common heat source to each of the heating zones independently one to another. Remote fault diagnosis and control is also provided.