Turbocharger and hydrogen-fueled aircraft engine assembly

By designing a turbocharger that uses engine exhaust to drive a turbine to rotate and pressurize fresh air, the problem of reduced exhaust temperature in the lean combustion mode of a hydrogen engine is solved, enabling the engine to obtain more fresh air in each working cycle and improve output power.

CN224496538UActive Publication Date: 2026-07-14BEIJING HYDROGEN HEHYDROGEN CHENG POWER TECHNOLOGY DEVELOPMENT PARTNERSHIP (LLP)
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Utility models(China)
Current Assignee / Owner
BEIJING HYDROGEN HEHYDROGEN CHENG POWER TECHNOLOGY DEVELOPMENT PARTNERSHIP (LLP)
Filing Date
2025-07-16
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In lean-burn mode, hydrogen engines have lower exhaust temperatures, which prevents existing turbochargers from providing sufficient intake air, affecting the engine's charging efficiency and output power, especially in the thin air environment at mid-to-high altitudes.

Method used

A turbocharger was designed, including a turbocharger housing, a turbine, and an impeller. The turbine is driven to rotate by engine exhaust, which in turn drives the impeller to pressurize fresh air. The turbocharger shaft rotates through a floating bearing. An exhaust bypass valve and a signal pipe are installed to control the airflow. Materials and processes are optimized to improve durability and efficiency.

Benefits of technology

It provides more fresh air during each working cycle, increases engine output power, adapts to the low enthalpy exhaust characteristics of hydrogen fuel cell engines, and maintains efficient operation in the thin air environment at mid-to-high altitudes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a turbocharger relates to engine technical field, including supercharger casing, turbine, impeller and supercharger shaft, and supercharger casing includes scroll casing and pressure shell, and is provided with intermediate body between scroll casing and pressure shell, and turbine sets up in scroll casing, and impeller sets up in pressure shell, and turbine is connected with impeller through supercharger shaft, and supercharger shaft rotates and sets up in intermediate body, the pressure shell import of pressure shell is used for going in fresh air, and the pressure shell export is connected with the air inlet of engine, the scroll casing import on scroll casing is used for connecting with the exhaust port of engine, and engine exhaust can drive turbine rotation, and turbine can drive impeller rotation through supercharger shaft, and pressurize the air inlet, and the scroll casing export is used for exhaust. The utility model also provides a kind of hydrogen fuel aeroengine assembly, including engine and the turbocharger as described above. The utility model makes engine obtain more fresh air in each working cycle process, and increase the output power of engine.
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