The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 1989
Filed:
Jul. 01, 1987
Gerald Lexen, Munich, DE;
Man Nutzfahrzeuge GmbH, Munich, DE;
Abstract
The invention provides an improved form of drive arrangement for use in a motor vehicle comprising a first prime mover, a hydromechanical power branching transmission, driven by the prime mover, and having at least two hydromechanical transducers, by the inclusion of an emergency drive device which comprises a second prime mover adapted to act as a standby prime mover and an adjustable hydromechanical transducer arranged to be driven by the second prime mover. The second prime mover is adapted to supply hydraulic power via the adjustable hydromechanical transducer to the hydromechanical transducers of the power branching transmission and thence to a driven axle of the vehicle in the event of the first prime mover becoming inoperative, for example, if the first prime mover fails or (in the event of its being an electric motor) if its supply of energy breaks down.