National Technical Reports Library

The National Technical Information Service acquires, indexes, abstracts, and archives the largest collection of U.S. government-sponsored technical reports in existence. The NTRL offers online, free and open access to these authenticated government technical reports. Technical reports and documents in its repository may be available online for free either from the issuing federal agency, the U.S. Government Publishing Office’s Federal Digital System website, or through search engines.

Details

Development and Test of HMPT-500.

ADA015570

Publication Date	1974
Personal Author	Northup, R. P.
Page Count	126
Abstract	An HMPT-500 hydromechanical power train was designed for the requirements of a MICV-type vehicle. To satisfy performance and design specifications, an entirely new design concept using only two pairs of hydraulic elements instead of three was developed. This power train differed from previous General Electric units in that reverse and low forward speeds use hydrostatic drive with the more efficient hydromechanical drive being employed for higher forward speed. The control system for the transmission was based almost entirely on previous transmission controller design concepts and used existing component configurations in a large number of places. Only in those instances where space considerations became overriding were new (but similar) components used.
Keywords	Combat vehicles Drives Transmissions(Mechanics) Variable speed drives Hydraulic equipment Hydromechanics Clutches Control systems Hydromechanical drives HMPT-500 drives
Source Agency	Army
NTIS Subject Category	79D - Combat Vehicles
Corporate Authors	General Electric CO Pittsfield Mass Ordnance Systems; Army Tank-Automotive Command, Warren, Mich.
Document Type	Technical Report
Title Note	Final engineering rept.
NTIS Issue Number	197524
Contract Number	DAAE07-72-C-0200

Development and Test of HMPT-500.

Development and Test of HMPT-500.
ADA015570

Publication Date	1974
Personal Author	Northup, R. P.
Page Count	126
Abstract	An HMPT-500 hydromechanical power train was designed for the requirements of a MICV-type vehicle. To satisfy performance and design specifications, an entirely new design concept using only two pairs of hydraulic elements instead of three was developed. This power train differed from previous General Electric units in that reverse and low forward speeds use hydrostatic drive with the more efficient hydromechanical drive being employed for higher forward speed. The control system for the transmission was based almost entirely on previous transmission controller design concepts and used existing component configurations in a large number of places. Only in those instances where space considerations became overriding were new (but similar) components used.
Keywords	Combat vehicles Drives Transmissions(Mechanics) Variable speed drives Hydraulic equipment Hydromechanics Clutches Control systems Hydromechanical drives HMPT-500 drives
Source Agency	Army
NTIS Subject Category	79D - Combat Vehicles
Corporate Authors	General Electric CO Pittsfield Mass Ordnance Systems; Army Tank-Automotive Command, Warren, Mich.
Document Type	Technical Report
Title Note	Final engineering rept.
NTIS Issue Number	197524
Contract Number	DAAE07-72-C-0200