Caterpillar Inc.

Stive Ramalho

Justin Douglas Speichinger

Paul Alan Rousseau

Wesley Thomas Payne

Ernest Everett Stoops

Matthew G Mickiewicz

Darren Joseph Hopf

Travis Neale Richards

Michael Lemoyne Repscher

Brice Mallein

A hydraulic pump or motor includes a mounting flange that is disposed at the first end of the housing. The mounting flange defines a pair of fastener receiving apertures that are disposed along the X-axis on either side of the shaft. The pair of fastener receiving apertures each define a radius center that are spaced away from each other a X dimension, and a pilot projection extends longitudinally away from the mounting flange, defining a pilot projection diameter. A ratio of the X dimension to the pilot projection diameter ranges from 1.07 to 1.11.

Axial piston pump mounting flange configuration

A hydraulic system for a motor grader is disclosed. The hydraulic system may include a first hydraulic subsystem and a second hydraulic subsystem. A pump may be configured to provide pressurized fluid to the first and second hydraulic subsystems. The hydraulic system may further include a control valve located upstream of the first and second hydraulic subsystems. The control valve may be configured to vary a standby pressure of pressurized fluid for use by the first and second hydraulic subsystems.

Hydraulic system for a motor grader

Growing community of inventors

Isle d'Abeau, France

Stive Ramalho