Compact gearing. Better pump performance.

Duocentric-IC Gear Technology

Trochocentric-developed gearing for compact, efficient, and low-pulsation oil pump systems. Designed to improve displacement, leakage behavior, tooth engagement, and hydraulic performance within demanding engine and transmission packages.

Project inquiry View Development Process

Why gear technology is critical

The gear set defines how an oil pump delivers flow, builds pressure, handles leakage, creates pulsation, and fits into the available package. Small changes in tooth geometry and clearances can strongly affect efficiency, NVH, durability, and system behavior.

Problem:

Limited displacement

Problem:

Internal leakage

Problem:

Pressure pulsation

Duocentric-IC gearing targets

Higher Displacement Density

Delivering more hydraulic performance within compact engine, transmission, and module packaging constraints.

Reduced Leakage Gaps

Improving volumetric efficiency through optimized clearances, tooth engagement, and leakage behavior.

Smooth Hydraulic Behavior

Reducing pressure ripple, mechanical excitation, and pump-related NVH through smoother gear interaction.

Our Approach to Gear Design

Tailored to Pump Requirements

We align the gear set with pressure targets, flow demand, RPM range, oil temperature, packaging space, and system-level hydraulic behavior.

Geometry-Focused Optimization

We translate performance targets into tooth geometry, clearances, roll-off behavior, leakage control, and smooth flow delivery.

Prototype Test Rig Optimization

Prototypes are optimized on our test rig for flow delivery, pressure stability, leakage, pulsation, NVH behavior, and power consumption.

Documented Results

Each prototype is 100% tested with full test reports to support customer validation and series readiness.

Examples

Applications demanding advanced gearing

engine-lubrication

Engine Lubrication

Compact gear sets for reliable oil supply, low losses, and stable hydraulic behavior in modern engine architectures.

Conventional Engine Oil Pumps

Transmission Systems

Low-pulsation gearing for AT, DCT, and CVT oil pump concepts with sensitive hydraulic control functions.

Regulated-Variable-Flow-Oil-Pumps

Electric Driven Oil Pumps

Efficient gear design for controlled electric pump operation, compact integration, and smooth flow delivery.

Validated gear performance.

We optimize prototypes on our test rig for flow delivery, leakage behavior, pressure stability, pulsation, NVH behavior, and power consumption—100% tested with full test reports. This supports customer validation and series readiness with production partners.

Prototype test rig optimization
100% tested with test reports
Series-ready transfer to partners

FAQs

Quick answers to practical engineering questions about Duocentric-IC gearing, oil pump performance, leakage behavior, pulsation, NVH, packaging, and prototype validation.

Duocentric-IC gear technology is used in compact oil pump systems where displacement, leakage behavior, pressure stability, pulsation, NVH, and packaging must be optimized together. It is relevant for engine, transmission, and electric driven pump applications.

Gear geometry influences displacement, tooth engagement, leakage paths, pressure ripple, mechanical excitation, friction, and wear. This makes the gear set one of the key design elements for hydraulic performance and system behavior.

In many applications, yes. The goal is to improve displacement density and hydraulic performance within the available pump envelope instead of simply increasing the housing size.

Reduced leakage gaps can improve volumetric efficiency and help maintain stable flow and pressure. This is especially important when compact packaging, low power consumption, and reliable hydraulic supply must be balanced.

The design focus is on optimized clearances, roll-off behavior, smoother tooth engagement, reduced leakage, and lower pulsation. The exact implementation depends on the application, package, pressure targets, and production requirements.

Prototype pump systems can be tested for flow delivery, leakage behavior, pressure stability, pulsation, NVH behavior, power consumption, temperature influence, and relevant operating points before series preparation.

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