Caterpillar Inc.

Caterpillar Sarl

Paul Alan Rousseau

Justin Douglas Speichinger

Darren Joseph Hopf

Ramalho Stive

Aurelien Herve Bernard

Paul Anthony Dvorak

Steven James Juricak

Matthew G Mickiewicz

David J Lomax

Lucas G De Caroli

Stive Ramalho

Pushkar N Tamhane

Matthew Chad Full

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 bolt receiving slots that are disposed along the X-axis on either side of the shaft. The pair of bolt receiving slots 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 1.1 to 1.5.

Hydraulic pump or motor with mounting configuration for increased torque

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

An example snow blower machine includes a first stage snow mover and a second stage snow mover. Snow is received at an inlet opening of the first stage and expels snow to the discharge opening. In a second stage, an impeller chamber receives snow from the first stage. The impeller chamber extends from a snow receiving end proximate the discharge opening to a distal end rearward of the discharge opening. To receive expelled snow from the first stage and deliver the snow to a second discharge opening, an impeller rotatable around an impeller axis at a hub is disposed in the impeller chamber. The impeller may be rotated by an impeller motor having a motor body that is at least partially disposed within the hub.

Impeller design for snow blower

A hydraulic system for a machine includes a first pump, an implement pump, a control valve, and an auxiliary circuit. The first pump is configured to supply a first fluid flow to a first circuit, such as a steering circuit. The implement pump is configured to supply a second fluid flow to an implement circuit to actuate a primary implement function. The auxiliary circuit is configured to deliver fluid flow to actuate an auxiliary implement function. The auxiliary circuit is fluidly coupled to the implement circuit. The auxiliary circuit is also coupled to the first circuit by the control valve. The control valve is located downstream, in the direction of fluid flow, of the implement pump and the first pump. The control valve is configured to allow at least a portion of the first fluid flow to enter the auxiliary circuit and be delivered to the auxiliary implement function.

Hydraulic systems and methods for powering auxiliary circuits

A mounting method for a skid steer loader is disclosed including coupling a first end portion of a component directly to a first wall of a skid steer loader frame. The method also includes coupling a second end portion of the component to an opposite wall of the skid steer loader frame by a mounting system that allows for dimensional differences between the component and the skid steer loader frame.

Skid steer loader and mounting method

A flushing system for a transmission is disclosed. The system has a first pump and a first actuator connected to the first pump to form a first loop. The system also has a second pump and a second actuator connected to the second pump to form a second loop. The system further has a charge pump configured to replenish the first and second loops. The system also has a single charge relief valve situated to receive fluid from the first pump, the second pump, and the charge pump.

Flushing system having a single charge relief valve

A drivetrain for use in a mobile vehicle is disclosed. The drivetrain may have a housing, a first hydraulic pump connected to the housing, and a second hydraulic pump connected to the housing. The second hydraulic pump may be in axial alignment with the first hydraulic pump. The drivetrain may also have a first motor fluidly connected to the first hydraulic pump, and a second motor fluidly connected to the second hydraulic pump. The first and second motors may have an axial direction substantially perpendicular to the axial alignment of the first and second hydraulic pumps.

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Raleigh, NC, United States of America

Paul Alan Rousseau