A valve includes a case comprising a pin bore, a pin configured to move axially in the pin bore, wherein the pin seals the pin bore, a first channel in communication with the pin bore, a second channel in communication with the pin bore, wherein the second channel comprises a restrictor at a location offset from the first channel, a third channel in communication with the pin bore, wherein the third channel comprises a check valve, and the second channel and third channel are in communication with each other. The valve can be a miniature valve that is used in the control of hydraulic fluid in prosthesis, such as a prosthetic ankle joint.

A valve includes a case comprising a pin bore, a pin configured to move axially in the pin bore, wherein the pin seals the pin bore, a first channel in communication with the pin bore, a second channel in communication with the pin bore, wherein the second channel comprises a restrictor at a location offset from the first channel, a third channel in communication with the pin bore, wherein the third channel comprises a check valve, and the second channel and third channel are in communication with each other. The valve can be a miniature valve that is used in the control of hydraulic fluid in prosthesis, such as a prosthetic ankle joint.

A support for household appliance comprises a hydraulic plate internally provided with a liquid flow passage, a sheath fixedly connected with the hydraulic plate, a regulating support arranged in the sheath and axially movable relative to the sheath, an accommodation chamber is formed by the hydraulic plate, the sheath and the regulating support. A flexible accommodation body that accommodates a liquid medium in the accommodation chamber extends and retracts to drive the regulating support to move in the sheath for leveling under the action of pressure. The flexible accommodation body is provided with an mounted on the hydraulic plate through the sheath in a sealed manner and communicates with the a liquid flow passage. The hydraulic medium in the flexible accommodation body can circulate into the liquid flow passage and flow to the liquid outlet nozzle through the a liquid flow passage, and thus, among household-appliance-used bottom feet for automatic leveling.

A support for household appliance comprises a hydraulic plate internally provided with a liquid flow passage, a sheath fixedly connected with the hydraulic plate, a regulating support arranged in the sheath and axially movable relative to the sheath, an accommodation chamber is formed by the hydraulic plate, the sheath and the regulating support. A flexible accommodation body that accommodates a liquid medium in the accommodation chamber extends and retracts to drive the regulating support to move in the sheath for leveling under the action of pressure. The flexible accommodation body is provided with an mounted on the hydraulic plate through the sheath in a sealed manner and communicates with the a liquid flow passage. The hydraulic medium in the flexible accommodation body can circulate into the liquid flow passage and flow to the liquid outlet nozzle through the a liquid flow passage, and thus, among household-appliance-used bottom feet for automatic leveling.

A pneumatic robotic tool, such as grinder, sander, etc., implements passive force control and compliance using two or more double-acting pneumatic pistons distributed about a pneumatic motor within the tool housing. The multiple pistons facilitate a compact design, reducing tool stack height, as compared to prior-art, single-piston designs. In one embodiment, filtered breather vents and an air pressure equalization passage maintain ambient atmospheric pressure throughout the tool, while preventing the infiltration of dust and other particulates. In one embodiment, a hard port rigidly affixed to the tool housing is provided for at least motor supply pneumatic fluid. The motor supply air is transferred from the hard port to the pneumatic motor via a flexible pneumatic fluid tube within the tool housing. In one embodiment, the pneumatic motor discharge air is vented from the tool housing in a sealed passage that accommodates the tool compliance motion, and prevents dust infiltration.

The invention relates to a machine that amplifies the drive torque of a moving shaft, which is formed by at least one pair of identical units facing a central shaft, each unit being formed by at least one mechanical actuator (cam), a hydraulic actuator (amplified linear force that provides the application of Pascal's law) and a mechanism comprising a piston, connecting rod and crankshaft. For mechanical considerations, the machine is a two-stroke engine (compression and intake) having at least two opposite horizontal pistons, that is, a 180 V engine.

The present disclosure discloses a support for household appliance and a household appliance. The support for household appliance comprises a fixed part and a moving part, a hollow chamber is formed between the fixed part and the moving part and the hollow chamber is provided with a hydraulic medium. At least two household-appliance-used supports communicate with one another through high-pressure pipes; and the hydraulic medium circulates among the household-appliance-used supports under action of pressure to drive the moving part to extend and retract to achieve automatic leveling. Liquid outlet nozzles communicating with the hollow chamber are arranged on the fixed part, the high-pressure pipes are in sealed connection with the liquid outlet nozzles through snap-in connecting members, and the snap-in connecting members have reinforcing aprons which are fit with the fixed part. In the present disclosure, the hydraulic medium circulates between the two supports for the household appliance for automatic leveling.

A support for household appliance comprises a hydraulic plate internally provided with a liquid flow passage, a sheath fixedly connected with the hydraulic plate, a regulating support arranged in the sheath and axially movable relative to the sheath, an accommodation chamber is formed by the hydraulic plate, the sheath and the regulating support. A flexible accommodation body that accommodates a liquid medium in the accommodation chamber extends and retracts to drive the regulating support to move in the sheath for leveling under the action of pressure. The flexible accommodation body is provided with an mounted on the hydraulic plate through the sheath in a sealed manner and communicates with the a liquid flow passage. The hydraulic medium in the flexible accommodation body can circulate into the liquid flow passage and flow to the liquid outlet nozzle through the a liquid flow passage, and thus, among household-appliance-used bottom feet for automatic leveling.

A support for household appliance comprises a hydraulic plate internally provided with a liquid flow passage, a sheath fixedly connected with the hydraulic plate, a regulating support arranged in the sheath and axially movable relative to the sheath, an accommodation chamber is formed by the hydraulic plate, the sheath and the regulating support. A flexible accommodation body that accommodates a liquid medium in the accommodation chamber extends and retracts to drive the regulating support to move in the sheath for leveling under the action of pressure. The flexible accommodation body is provided with an mounted on the hydraulic plate through the sheath in a sealed manner and communicates with the a liquid flow passage. The hydraulic medium in the flexible accommodation body can circulate into the liquid flow passage and flow to the liquid outlet nozzle through the a liquid flow passage, and thus, among household-appliance-used bottom feet for automatic leveling.

A wave energy converter includes a surface float including a non-axisymmetric profile, a reaction plate configured to be submerged below a water surface, and more than one flexible tether, each mechanically coupled to both the surface float and the reaction plate, the reaction plate having a moment of inertia in pitch and roll greater than a moment of inertia in pitch and roll of the surface float.