Exhaust mechanism

• Main Authors: ZHANG QUANFU, FANG LIANGJIE, WEN LIMING
• Format: Patent
• Language: Chinese; English
• Published: 13.03.2020
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

The utility model relates to the technical field of engine assemblies, and particularly discloses an exhaust mechanism which comprises a shell, a valve element and an elastic piece. A first cavity, asecond cavity, a third cavity and a fourth cavity which are sequentially communicated are formed in the shell. The first cavity is communicated with a low-pressure pipeline; the fourth cavity is communicated with a high-pressure pipeline; the valve core slides in the third cavity; a damping hole is formed in the valve core; the fourth cavity can always communicate with the second cavity through the damping hole; the valve element is provided with a closing position abutting against the sealing face and an opening position separated from the sealing face. When the valve core is positioned at the closing position; the valve element abuts against the sealing face and separates the first cavity from the second cavity. When the valve core is positioned at the opening position; the valve elementis separated from the sea