A hydraulic assembly for an extendable lift arm assembly can include an extension cylinder, a leveling cylinder, a main control valve, a flow combiner/divider, and one or more flow-blocking arrangements. The main control valve can be configured to control commanded movement of the extension and leveling cylinders of the lift arm assembly. The flow combiner/divider can be configured to hydraulically link the extension cylinder with the leveling cylinder for synchronized operation of the extension cylinder and the leveling cylinder. The one or more flow-blocking arrangements can be configured to restrict flow from rod or base ends of the leveling or extension cylinders during commanded extension or retraction of the leveling and extension cylinders, or in the absence of commanded movement of the leveling and extension cylinders, to maintain synchronized orientation of the leveling and extension cylinders.

A hydraulic system for controlling a hydraulic circuit of a working machine is disclosed. The hydraulic system can include a first hydraulic cylinder assembly, a second hydraulic cylinder assembly, a third hydraulic cylinder assembly and a valve. When coupled to the first hydraulic cylinder assembly and the second hydraulic cylinder assembly, the third hydraulic cylinder assembly can be configured to control a flow of a hydraulic fluid between the first hydraulic cylinder assembly and the second hydraulic cylinder assembly to limit an extent of travel of the first piston and an extent of travel of the second piston.

Disclosed is system, method, and rack stand portion for the advantageous cooling of computer equipment. When multiple instances of computer equipment are managed from a central authority, cooling, heating, and/or cessation of either can be controlled in a way that enhances efficiency. Impediments that control access channels and interior access to computer equipment is toggled by the present invention.

The present invention includes a lateral support member for a server computer constructed to permit advantageous airflow. The present invention can be operated to shunt organized airflow into multiple computer cases and/or organized airflow from multiple computer cases to a dedicated heat reservoir.

Disclosed is a server rack system within an enclosed building and a process for directing air through a server facility. Air is channeled from conduit to a server rack assembly and then through a closed loop back again into the server rack assembly from channeling exhaust air through conduit away from the server rack assembly.

Disclosed is a server rack system within an enclosed building and a process for directing air through a server facility. Air is channeled within a server rack assembly and then through a closed loop back again into the server rack assembly. Impediments may control the degree of airflow availability.

Disclosed is system, method, and rack stand portion for the advantageous cooling of computer equipment. The rack stand includes a hollow body that may be formed of cartridges. Gas from an airflow source is guided into the rack stand body and then into a sealed case of the computer equipment. Air flow is then guided out of the computer equipment for recirculation, exhaust, or other purpose.

The present invention includes a computer server system and portions thereof, and a process for ameliorating a detrimental high temperature circumstances. An inert gas may be emitted into a server computer from any of several components.

Disclosed is a server rack system within an enclosed building and a process for directing air through a server facility. Air is channeled from conduit to a server rack assembly and then through a closed loop back again into the server rack assembly from channeling exhaust air through conduit away from the server rack assembly.

Systems and methods for determining a pre-charge gas pressure in a gas-charged hydraulic accumulator are disclosed. For example, systems and methods for determining pre-charged gas pressure of a gas-charged hydraulic accumulator included as part of a vehicle are disclosed. Further, the present disclosure provides for determining a pre-charge gas pressure of a gas-charged hydraulic accumulator using a position sensor. The accumulator may form part of a hydraulic system used to move one part of the vehicle relative to another.