A valve includes: a first plate having a first vent hole; a second plate having a second vent hole; a valve chamber positioned between the first plate and the second plate; a valve body including a third vent hole; an exhaust path-forming plate forming a first flow path between the exhaust path-forming plate and the valve body, forming a second flow path between the exhaust path-forming plate and the second plate, and having a fourth vent hole through which the first flow path is in communication with the second flow path; and a fifth vent hole. The first flow path establishes communication between the second vent hole and the fourth vent hole, and the second flow path establishes communication between the fourth vent hole and the fifth vent hole.

A cooling system including a heat spreader and a cooling element is described. The heat spreader is thermally coupled with a heat-generating structure. The cooling element is in fluid communication heat spreader. The heat-generating structure is offset from the cooling element. The cooling element undergoes vibrational motion when actuated to drive a fluid toward the heat spreader while not directing the fluid directly at the heat-generating structure.

Disclosed are techniques such as roll to roll processing to produce inlet valves for controlling entry of fluid into a compartment of a device. The valve includes a body having a compartment and an inlet into the compartment, with the inlet being bifurcated by a pair of spaced wall portions of the body that form a confining region and which pair of spaced wall portions together with wall portions of the body provide a pair of spaced inlet portions into the compartment and a valve member having a first portion that is position-able within a portion of the compartment, an intermediate portion, and a second portion coupled to the first portion by the intermediate portion, with the second portion position-able within the confining region and with the second portion having an obstruction portion.

Disclosed are techniques such as roll to roll processing to produce inlet valves for controlling entry of fluid into a compartment of a device. The valve includes a body having a compartment and an inlet into the compartment, with the inlet being bifurcated by a pair of spaced wall portions of the body that form a confining region and which pair of spaced wall portions together with wall portions of the body provide a pair of spaced inlet portions into the compartment and a valve member having a first portion that is position-able within a portion of the compartment, an intermediate portion, and a second portion coupled to the first portion by the intermediate portion, with the second portion position-able within the confining region and with the second portion having an obstruction portion.

A pump-valve integrated machine for a pneumatic lumbar support of an automobile seat includes: an air pump; a pump valve connection base that is provided with a one-way air outlet structure, which is opposite to and in communication with an air outlet hole of the air pump; an electromagnetic air valve lower base that is fixed onto the air pump and is provided with a mounting groove and a ventilation hole are; a normally open electromagnetic air valve that is disposed on the electromagnetic air valve lower base and has an air inlet end corresponds to the ventilation hole; an electromagnetic air valve upper cover that is provided above the normally open electromagnetic air valve and has an air outlet connector corresponds to a valve core of the normally open electromagnetic air valve; and a control circuit board.

A pump-valve integrated machine for a pneumatic lumbar support of an automobile seat includes: an air pump; a pump valve connection base that is provided with a one-way air outlet structure, which is opposite to and in communication with an air outlet hole of the air pump; an electromagnetic air valve lower base that is fixed onto the air pump and is provided with a mounting groove and a ventilation hole are; a normally open electromagnetic air valve that is disposed on the electromagnetic air valve lower base and has an air inlet end corresponds to the ventilation hole; an electromagnetic air valve upper cover that is provided above the normally open electromagnetic air valve and has an air outlet connector corresponds to a valve core of the normally open electromagnetic air valve; and a control circuit board.

An active cooling system and method for using the active cooling system are described. The active cooling system includes a cooling element having a first side and a second side. The first side of the cooling element is distal to a heat-generating structure and in communication with a fluid. The second side of the cooling element is proximal to the heat-generating structure. The cooling element is configured to direct the fluid using a vibrational motion from the first side of the cooling element to the second side such that the fluid moves in a direction that is incident on a surface of the heat-generating structure at a substantially perpendicular angle and then is deflected to move along the surface of the heat-generating structure to extract heat from the heat-generating structure.

Devices and methods for operating a diaphragm compressor system provide high output pressure and high throughput. In some embodiments, modular diaphragm compressors are stacked with a clamping mechanism pressing the compressor modules together. In embodiments, multiple stacks are provided as stages of a pressurization process. In embodiments, a main stage valve controls one or more pressure circuits for one or more hydraulic actuators of compressor modules. In embodiments, orifices configured for damping are incorporated to control actuator piston movement within a compressor module.

A system for cooling a mobile phone and method for using the system are described. The system includes an active piezoelectric cooling system, a controller and an interface. The active piezoelectric cooling system is configured to be disposed in a rear portion of the mobile phone distal from a front screen of the mobile phone. The controller is configured to activate the active piezoelectric cooling system in response to heat generated by heat-generating structures of the mobile phone. The interface is configured to receive power from a mobile phone power source when the active piezoelectric cooling system is activated.

A vacuum suspension system includes a foot cover having a heel portion and a pump system located in the heel portion. The pump system includes upper and lower sections arranged to move in an axial direction relative to one another and a pump mechanism operatively connected to and positioned between the upper and lower sections. When the heel portion is loaded in stance the pump mechanism moves from an original configuration in which the volume of a fluid chamber defined by the pump mechanism is zero or near-zero, to an expanded configuration in which the volume of the fluid chamber is increased.