Common-rail oil sprayer assembly

• Main Authors: SHAO MINGCONG, ZHU RENYI, PU MINGJIN, QIANG GUOQING, MIAO YINGYING, HU YUNZE
• Format: Patent
• Language: English
• Published: 08.07.2015
• Subjects: BLASTING; COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

The utility model relates to a common-rail oil sprayer assembly which comprises a valve seat. A through oil outlet is formed in one end of the valve seat, a groove is formed in the top of the other end of the valve seat, a through hole is formed in the valve seat and under the groove, a valve core is arranged in the through hole, an armature piece is arranged in the groove, the upper portion of the armature piece is connected with an electromagnet through a spring, an oil returning hole extending along the lateral wall of the through hole is obliquely formed in the lateral wall of the through hole, the bottom of the valve seat is connected with a transition block, a damping hole is formed in the transition block, and the damping hole is communicated with the oil outlet and the oil returning hole. The common-rail oil sprayer assembly is compact and reasonable in structure and convenient to operate. An electromagnetic valve is arranged at the upper portion of the armature piece through the spring, and the armature piece is controlled by the electromagnetic valve. When the electromagnetic valve is electrified, the armature piece is attracted, the 0.03mm level difference is generated between the center of the valve core and the valve seat, oil enters the valve core through the oil outlet, and the oil is sprayed. Furthermore, the common-rail oil sprayer assembly is good in using reliability and long in service life.