97results about How to "Constant air pressure" patented technology

A self-repairing anti-exploding tyre features that a single-layer or double-layer cavity is arranged on the inner surface of a tyre and divided into multiple isolated spaces, and the coagulating reaction liquid or expanding substance is loaded in each space. Its self-repairing method is also disclosed.

The present disclosure is directed to a physiological and neurological monitoring apparatus that monitors and satisfies the need for an improved buffer between the skull of a user and the impacting object so as to minimize the likelihood of neck and cranial injury. Further the helmet comprises a facemask for prevent concussions by absorbing the energy from an impact and redirecting the energy across the structure of the helmet shell. The embodiment comprises a helmet shell with elongated cheek guards and an elongated rear neck guard which follows the contour of the user's shoulder line and continues sufficiently below the head of said user to cover the rear neck of the user. These additions help prevent concussions by providing a larger surface of protection to especially weak areas that are prone to injury such as the rear of the neck and the lower jaw line.

The invention discloses an external loading type unpowered atmospheric particulate sampler. According to the sampler, a sampling hole is formed in the input end of the sampler, a multi-hole exhaust pipe is arranged at the output end of the sampler, and a particulate cutter is arranged on an air flow channel between the sampling hole and the multi-hole exhaust pipe. The external loading type unpowered atmospheric particulate sampler further comprises a differential pressure sensor, a main controller, an electric valve and an empennage regulating element, wherein the electric valve is arranged on the multi-hole exhaust pipe, the empennage regulating element is arranged at the output end of the sampler, and the main controller is connected with the differential pressure sensor through leads. The external loading type unpowered atmospheric particulate sampler is mounted on an aircraft. According to the sampler, a power device does not need to be configured, the atmospheric particulate sampling is realized by using power generated by external air flow, a difference value between air pressures at the input end and the output end of the sampler is detected by the differential pressure sensor in real time, and the electric valve and the empennage regulating element are intelligently regulated according to the difference value between the air pressures by the controller so as to keep a flow rate of sampling air constant, thus realizing constant-speed sampling.