2results about How to "Open sensitive" patented technology

This invention belongs to the field of check valve technology, specifically a float-type check valve, including a valve body, a mounting base, a float housing, and a hollow float. The float housing is rotatably assembled via a spherical seat on the mounting base. A ball bearing is provided between the spherical seat and the ball head of the float housing, allowing the float housing to automatically adjust its verticality when the valve body is tilted, maintaining its central axis perpendicular to the horizontal plane. The float housing has a through hole communicating with the inlet, a spherical cavity accommodating the float, and a through groove communicating with the outlet. A branch channel extending to the valve seat sealing surface is opened on the inner wall of the through hole, which can assist in pushing the float open during forward flow. A multi-stage staggered-hole throttling disc is provided on the inner side of the outlet end to reduce the reverse flow velocity. The float housing adopts a split plug-in structure. This invention solves the problems of poor sealing, difficulty in opening under low pressure, and susceptibility to water hammer in traditional float valves installed at tilted angles. It has advantages such as reliable sealing, sensitive response, and adaptability to complex installation environments.

The present invention discloses a compression-release type engine cylinder brake device, comprising a driving force input camshaft, a brake rocker assembly driven by the driving force input camshaft and capable of rotating and swinging around a rocker shaft, the brake rocker assembly comprising a brake rocker and a valve clearance control mechanism arranged in a mounting hole of the brake rocker, the valve clearance control mechanism comprising a brake plunger, a return spring with an upward elastic force on the brake plunger, and a drive device with an axial downward force on the brake plunger, the brake plunger facing the exhaust valve. The driving piston of the present invention synchronously drives the upper connecting rod and the lower connecting rod to swing, because the spherical heads of the upper connecting rod and the lower connecting rod respectively perform a twisting action in the corresponding spherical groove, the upper connecting rod presses the middle slider downward during the swinging and twisting process, and then the middle slider presses the lower connecting rod, and the lower connecting rod presses the brake plunger downward, so that the brake plunger moves downward, triggering the valve cap, thereby realizing the engine cylinder braking operation.