种带海拔高度补偿的发动机涡轮增压器放气阀

• Format: Patent
• Language: Chinese
• Published: 29.12.2017
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MECHANICAL ENGINEERING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

本发明提供了种带海拔高度补偿的发动机涡轮增压器放气阀，具有不同海拔条件下自适应调节放气阀开启压力的功能。该放气阀包括：阀壳体，该阀壳体内包括单杆活塞以及对该活塞施加作用力的预紧弹簧，双杆活塞以及对该活塞施加作用力的另预紧弹簧，该双杆活塞远离单杆活塞方向的活塞杆连接放气阀门，该双杆活塞靠近单杆活塞方向的活塞杆与圆柱齿轮沿轴向螺纹连接，该圆柱齿轮是可旋转活动的，从而响应于大气压力的变化改变双杆活塞与单杆活塞之间的作用距离，最终改变双杆活塞与单杆活塞之间的弹簧力以及所对应的放气阀开启压力。 The invention provides an engine turbocharger deflation valve with altitude compensation. The deflation valve has a function of adjusting deflation valve opening pressure adaptively at different altitudes and comprises a valve shell body; a single rod piston, a pre-loaded spring which applies acting force to the piston, a double-rod piston and another pre-loaded spring which applies acting force to the piston are arranged in the valve shell body; a piston rod, far away from the direction of the single-rod piston, of the double-rod piston is connected with the deflation valve; a piston rod, close to the direction of the single-rod piston, of the double-rod piston is in threaded connection with a cylindrical gear in the axial direction; and the cylindrical gear is rotata