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Standard

AEROSPACE-CIVIL TYPE VARIABLE DELIVERY HYDRAULIC PUMP

1995-03-01
HISTORICAL
AS595B
This SAE Aerospace Standard (AS) establishes the general requirements for pressure compensated, variable delivery hydraulic pumps, suitable for use in commercial aircraft hydraulic systems. This document shall be used in conjunction with the procurement specification for each pump model.
Standard

AIRCRAFT VARIABLE DELIVERY HYDRAULIC PUMPS

1959-02-01
HISTORICAL
AS595
This specification establishes the common requirements for variable delivery, hydraulic pumps, suitable for use in aircraft; and the methods to be used for demonstrating compliance with these requirements.
Standard

Accumulators, Ground, Hydropneumatic Pressure

2008-07-17
HISTORICAL
ARP763
This specification covers ground type hydropneumatic pressure accumulators for use in ground support hydraulic systems at rated pressures ranging up to 5,000 psi including details pertinent to the design, fabrication, and performance of the accumulators.
Standard

Accumulators, Ground, Hydropneumatic Pressure

2012-07-11
CURRENT
ARP763A
This specification covers ground type hydropneumatic pressure accumulators for use in ground support hydraulic systems at rated pressures ranging up to 5,000 psi including details pertinent to the design, fabrication, and performance of the accumulators.
Standard

Accumulators, Hydraulic, Cylindrical, Aircraft, Maintenance Free, Factory Precharged

2002-07-25
HISTORICAL
ARP4378
This SAE Aerospace Recommended Practice (ARP) establishes the minimum requirements and procedures for the design, construction, testing and performance of aerospace, maintenance free, factory pre-charged hydraulic accumulators. The accumulators are designed for use in aircraft hydraulic systems at maximum rated operating pressures up to 8000 psi (55158 KPa). The temperature range of the accumulator is -65 to 275 °F (-54 to 135 °C).
Standard

Aerospace - Accumulator, Hydraulic, Cylindrical, Piston Separated

2007-11-20
HISTORICAL
ARP4379A
This SAE Aerospace Recommended Practice (ARP) is intended as a guide in defining the requirements for aerospace piston separated hydraulic accumulators, including details pertinent to the design, fabrication, and performance of the accumulator. This type of accumulator has a piston separator and contains both high-pressure gas and fluid. The accumulator is used in aerospace hydraulic systems of the following types as defined in AS5440 with design operating pressures of up to 8000 psi (55,160 kPa). Type I: -65 to +160 °F (-54 to +71 °C) fluid temperature Type II: -65 to +275 °F (-54 to +135 °C) fluid temperature For commercial aerospace or helicopter applications, the information and guidelines of ARP4752 or ARP4925 respectively, are considered.
Standard

Aerospace - Accumulator, Hydraulic, Cylindrical, Piston Separated

2024-04-15
CURRENT
ARP4379B
This SAE Aerospace Recommended Practice (ARP) is a guide for defining the requirements for aerospace piston hydraulic accumulators, including details pertinent to the design, fabrication, performance and testing of the accumulator. This type of accumulator contains a piston which separates pressurized gas and fluid.
Standard

Aerospace - Accumulator, Hydraulic, Self-Displacing

2008-12-19
HISTORICAL
ARP4553A
This SAE Aerospace Recommended Practice (ARP) is intended to provide design and qualification requirements for self-displacing hydraulic accumulators. These requirements are intended be included in the Procurement Specification for the accumulator. Those requirements identified by the use of “shall” are considered to be essential requirements; those requirements identified by the use of “should” are considered to be optional requirements for inclusion in the Specification at the discretion of the Purchaser. In addition, test methods for production acceptance and qualification purposes are provided.
Standard

Aerospace - Application Guide for Hydraulic Power Transfer Units

2002-07-30
HISTORICAL
ARP1280A
This SAE Aerospace Recommended Practice (ARP) is an application guide for hydraulic power transfer units, and describes the various types, typical design approaches, their operational characteristics and limitations, circuit recommendations, and a tabulation of typical applications. The scope is limited to devices that transfer power between hydraulic systems and do so by means of rotary subassemblies such as hydraulic motors and pumps.
Standard

Aerospace - Application Guide for Hydraulic Power Transfer Units

2022-05-23
WIP
ARP1280C
This SAE Aerospace Recommended Practice (ARP) is an application guide for hydraulic power transfer units and describes: The various types Typical design approaches Their operational characteristics and limitations Circuit recommendations Typical applications The scope of this ARP is limited to devices that transfer power between hydraulic systems and do so by means of rotary subassemblies such as hydraulic motors and pumps.
Standard

Aerospace - Application Guide for Hydraulic Power Transfer Units

2014-11-13
CURRENT
ARP1280B
This SAE Aerospace Recommended Practice (ARP) is an application guide for hydraulic power transfer units and describes: The various types Typical design approaches Their operational characteristics and limitations Circuit recommendations Typical applications The scope of this ARP is limited to devices that transfer power between hydraulic systems and do so by means of rotary subassemblies such as hydraulic motors and pumps.
Standard

Aerospace - Civil Type Variable Delivery, Pressure Compensated, Hydraulic Pump

2003-09-25
HISTORICAL
AS595C
This SAE Aerospace Standard (AS) establishes the general requirements for the design, construction, acceptance and qualification test of pressure compensated, variable delivery hydraulic pumps, used in civil aircraft hydraulic systems. It provides additional parameters for a Procurement Specification to be used in conjunction with this AS for each pump. This AS is applicable to hydraulic pumps driven by an engine, in systems conforming to the general requirements of ARP4752, and the regulations of FAR and/or JAR 25. It is also applicable to pumps driven by other power sources such as electric motors, ram air turbines and engine bleed air turbines.
Standard

Aerospace - System Integration Factors That Affect Hydraulic Pump Life

2011-01-03
HISTORICAL
AIR1922A
This AIR presents the following factors that affect hydraulic pump life and performance: a The need to supply hydraulic fluid at the correct pressure and quality to the pump inlet port b Considerations for the pump output c Factors to be considered for the pump case drain lines d The mounting of the hydraulic pump e Hydraulic fluid properties, including cleanliness
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