IP Library Granted Patent US 7,228,762
Granted Patent B2
US 7,228,762 · App. 11/151,094 · Granted Jun 12, 2007

Traveling gear for agricultural working machine

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Quick Facts
Patent No.
US 7,228,762
App. No.
11/151,094
Granted
Jun 12, 2007
Kind
B2
Abstract

A method of regulating a travelling speed of an agricultural machine includes providing a diesel engine to drive a variable displacement pump, the variable displacement pump connected by a hydraulic line to at least one hydraulic motor connected to a running gear so as to drive the agricultural machine at the travelling speed. The method further includes measuring a speed of the diesel engine, and providing a delivery volume from the variable displacement pump via the hydraulic line to the at least one hydraulic motor in proportion to the measured speed of the diesel engine, where a speed of the at least one hydraulic motor controls the travelling speed of the agricultural machine.

Claims (6)

1. A method of regulating a travelling speed of an agricultural machine, the method comprising the steps of:

providing a diesel engine to drive a variable displacement pump, the variable displacement pump connected by a hydraulic line to at least one hydraulic motor connected to a running gear so as to drive the agricultural machine at the travelling speed;

measuring a speed of the diesel engine;

providing a delivery volume from the variable displacement pump via the hydraulic line to the at least one hydraulic motor in proportion to the measured speed of the diesel engine; and

braking the agricultural machine with the at least one hydraulic motor when the measured speed of the diesel engine is at a predetermined idling speed;

wherein a speed of the at least one hydraulic motor controls the travelling speed of the agricultural machine.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 17, 2007
From: CNH AMERICA LLC
To: BLUE LEAF I.P. INC.
Reel/Frame 019704/0690 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 30, 2007
From: MENDE, INGO; SCHOLTKE, HENRI
To: NEW HOLLAND NORTH AMERICA, INC.
Reel/Frame 019227/0691 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 30, 2007
From: NEW HOLLAND NORTH AMERICA, INC.
To: CNH AMERICA LLC
Reel/Frame 019227/0766 →