2823 results about "Cylinder.air" patented technology

A system and method to control engine valve timing to improve air-fuel control in an engine with valves that may be deactivated. Valves that may be deactivated are controlled in a manner to improve detection of individual cylinder air-fuel ratios.

A robotic hand and arm where the fingers are driven by rotational motors with drums, and pulled with cables using rolling friction. The hand extends into a robotic arm through a wrist wherein the wrist is controlled by pneumatic cylinders. Each finger preferably is provided with four manufactured parts and a single pulley. The thumb is provided with three pulleys for independent distal movement. Cables wraps around or over pulleys, eliminating tight bends. A glove is provided about the robotic hand which provides a compressive, liquid resistant membrane.

A workstation support assembly comprises a support assembly, a post assembly rotationally supported by the support assembly and including a post member, a computer monitor support assembly operably coupled for rotation with a first end of the post member, and a keyboard support assembly operably coupled for rotation with a second end of the post member, wherein rotation of the keyboard support assembly forces rotation of the post member and the monitor support assembly, and wherein rotation of the monitor support assembly does not force the rotation of the keyboard support assembly. Other aspects of the workstation comprise a four-bar linkage support arm that includes a cable management member extending therethrough for receiving and guiding wires within an interior passage of the support arm, a lockable pneumatic cylinder located within the support arm and adapted to lock the support arm at a given vertical position, a housing assembly that spans the distance between vertical studs within commercial wall structures, thereby eliminating the requirement for additional mounting structures, and a keyboard support assembly that includes a cam assembly for locking an adjustable keyboard in a storage position, and a storage compartment for slidably receiving a computer mouse therein when the keyboard support is in the storage position.

The invention relates to systems and methods for rapidly and isothermally expanding and compressing gas in energy storage and recovery systems that use open-air hydraulic-pneumatic cylinder assemblies, such as an accumulator and an intensifier in communication with a high-pressure gas storage reservoir on a gas-side of the circuits and a combination fluid motor / pump, coupled to a combination electric generator / motor on the fluid side of the circuits. The systems use heat transfer subsystems in communication with at least one of the cylinder assemblies or reservoir to thermally condition the gas being expanded or compressed.

An exercise apparatus includes a compact resistance unit that houses a pneumatic cylinder. The cylinder is connected to a pulley wheel that moves at least toward the cylinder. A main cable extends about a portion of the pulley wheel. One end of the main cable is fixed to the unit housing and the other end is attached to a pulley block of a block-and-tackle mechanism. A user cable extends through the block-and-tackle mechanism and is connected to a handle. The pneumatic cylinder resists movement of the handle away from the unit.

A system and method providing automatic adjustment of flows used to empty dry material from a pressure pot or hopper. In some embodiments, based on pressure increases in the conveying line that receives the dry material, the flow of conveying-fluid to the conveying line automatically increases and / or the flow of pressurization fluid to the hopper that assists pushing dry material out of the hopper automatically decreases and / or rotary-valve speed controlling dry-material rates from the hopper automatically slows. In some embodiments, one or more discretely or continuously adjustable critical-flow venturies (CFVs) automatically adjust mass flow of fluid based on, e.g., pintle position set by a pneumatic cylinder controlled by conveying-line pressure. Each pintle moves in and out of its CFV throat, adjusting throat area, thus setting the rate of flow. In some embodiments, pintle cross-sectional area is linearly proportional to distance from the tip of the pintle.

A method and a robotic device for locomotion training. The method involves shifting a subject's pelvis without directly contacting the subject's leg, thereby causing the subject's legs to move along a moveable surface. The device comprises two backdriveable robots, each having three pneumatic cylinders that connect to each other at their rod ends for attachment to the subject's torso. Also provided is a method of determining a locomotion training strategy for a pelvic-shifting robot by incorporating dynamic motion optimization.