Oil-gas separating type cylinder head cover assembly of 490 engine

• Main Authors: WU ZHONG, HAN CHUANHU
• Format: Patent
• Language: Chinese; English
• Published: 03.09.2014
• Subjects: ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES; BLASTING; COMBUSTION ENGINES; CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; WEAPONS

The utility model discloses an oil-gas separating type cylinder head cover assembly of a 490 engine. The oil-gas separating type cylinder head cover assembly comprises a cylinder head cover, a gas outlet pipe and an oil filling port cover seat, a breather window is not arranged on the cylinder head cover, a plurality of separation plates are arranged in the cylinder head cover, and a circulating labyrinth type structure is formed in the cylinder head cover by the separation plates. The window, with a breather, originally arranged on the waist portion of an engine body is closed, a separation chamber of the circulating labyrinth type structure is adopted, and rigidity of the engine body is restored. On the basis of the hot air rising principle, the advancing distance of saturated oil mist is increased under the condition of pressure of a crankcase, and intermediate-grained and large-grained oil drops cannot advance above a cylinder head cover shell under the gravity action of the oil drops. According to the ne