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Air cycle machine fan and compressor housings

A technology of air cycle machines and compressors, which is applied in the direction of machines/engines, air handling equipment, mechanical equipment, etc., and can solve problems such as damaged fan sections, system performance degradation, and impact

Active Publication Date: 2020-03-10
HAMILTON SUNDSTRAND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the event that one of the fan blades of a fan section should break free from the common shaft during operation, the severed fan blade could affect and damage the housing of the fan section
In conventional ACMs, the casing surrounding the fan section is often integral with the casing of the compressor section, creating a single component with complex geometry that is expensive to repair or replace
When installing new fan and compressor housings, improper alignment with mating components may cause reduced system performance

Method used

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  • Air cycle machine fan and compressor housings
  • Air cycle machine fan and compressor housings
  • Air cycle machine fan and compressor housings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] figure 1 is a perspective view of an air cycle machine (ACM) assembly 2 comprising: a fan inlet diffuser 4 with a fan inlet diffuser housing 6 , a condenser / reheater 8 and an ACM 10 . As shown, the ACM 10 includes a fan and compressor section 12 (including a compressor section 12C and a fan section 12F), a first turbine section 14 , and a second turbine section 16 .

[0018] The fan inlet diffuser 4 is connected to the condenser / reheater 8 and the ACM 10 . Condenser / reheater 8 is joined to fan inlet diffuser 4 and ACM 10 . ACM 10 is coupled to fan inlet diffuser 4 and condenser / reheater 8 . Fan and compressor section 12 is connected to fan inlet diffuser 4 , condenser / reheater 8 and first turbine section 14 . Fan section 12F of fan and compressor section 12 is connected to fan inlet diffuser housing 6 of fan inlet diffuser 4 . Compressor section 12C is connected to condenser / reheater 8 and first turbine inlet section 14 . First turbine section 14 is joined to conde...

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PUM

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Abstract

A fan and compressor housing for an air cycle machine includes a fan inlet disposed around a center axis of the housing and having a fan inlet mounting flange, a compressor outlet having a compressor outlet mounting flange, and a compressor inlet having a compressor inlet mounting flange. The fan inlet mounting flange has a pinhole disposed thereon configured to receive a pin from a fan inlet diffuser housing and a fan inlet counterbore configured to receive a mating component from the fan inlet diffuser housing. The compressor outlet mounting flange has a compressor outlet counterbore configured to receive a first mating component from a condenser / reheater. The compressor inlet mounting flange has a compressor inlet counterbore configured to receive a second mating component from the condenser / reheater.

Description

Background technique [0001] Conventional aircraft environmental control systems incorporate air cycle machines (ACMs) for cooling and dehumidifying the air supplied to the aircraft cabin. The ACM includes a compressor section to compress the air. The compressed air is discharged to a co-flow heat exchanger and sent to the turbine. The turbine extracts energy from the expanding air to drive the compressor. The air output from the turbine is often used as a source of air for a vehicle such as an aircraft cabin. ACMs can be used to achieve desired pressure, temperature and humidity in the air delivered to the aircraft's environmental control systems. [0002] ACMs often have a three-wheel or four-wheel configuration. In a three-wheel ACM, a turbine drives both a compressor and a fan rotating on a common shaft. In a four-wheel ACM, two turbine sections drive the compressor and fan on a common shaft. In either configuration, the first airflow may be directed to the compressor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/42B64D13/06
CPCB64D13/06B64D2013/0688F04D29/4206F04D29/4226F01D25/243F04D17/10F04D25/04F04D29/441F04D29/624F05D2220/40F05D2220/50F05D2230/64F05D2230/72F05D2230/80F05D2260/39B64D13/08B64D2013/0662F01D5/02F04D29/4233F04D29/522F04D29/541F04D29/626F04D29/646
Inventor E.齐拉巴什S.E.罗森
Owner HAMILTON SUNDSTRAND CORP
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