Variable-lift oil control valve structure of engine

Abstract

The invention relates to a variable-lift oil control valve structure of an engine. The engine at least comprises a crankcase, a cylinder body arranged on the crankcase, and a cylinder head is arranged on the cylinder body, wherein the cylinder body is provided with a timing chain chamber, and the timing chain chamber extends upwards to the cylinder head, and is provided with a timing chain; the cylinder head is provided with a rocker chamber, and the rocker chamber is provided with a cam group, a rocker group and a valve group; the rocker group is internally provided with an oil control drive mechanism, and the oil control drive mechanism is controlled by an oil control valve; and one surface of the oil control valve at an intake port side is provided with an oil control valve mounting seat, and a bayonet socket part of the oil control valve mounting seat can be inserted by an inserting part of the oil control valve. A distance between the bayonet socket part of the oil control valve mounting seat and the cylinder head is kept, so that the oil control valve can stay away from a high-temperature part of the engine, and thus the oil control valve mounting seat avoids forming a heat gathering body and the durability of the oil control valve can be enhanced so as to achieve the effects of easy configuration and avoidance of interference of the oil control valve to the maintenance of other components; and a control oil path between the oil control valve and the oil control drive mechanism can be shortened, so that the consumption of oil pressure is reduced, and meanwhile, the oil control valve control can control and drive the oil control drive mechanism more precisely.

Description

technical field [0001] The present invention relates to an oil control valve structure with variable head of engine valve, in particular, it can prevent the oil control valve from interfering with the maintenance of other parts, and can shorten the control oil circuit between the oil control valve and the oil control driving mechanism. , so that the loss of oil pressure can be reduced, and at the same time, the oil control valve can control and drive the oil control driving mechanism with a more precise structure. Background technique [0002] The known variable valve lift mechanism oil circuit configuration structure of the engine 1, please refer to figure 1 As shown, a solenoid valve 2 is arranged above the cylinder head 11, and the lubricating oil at the oil pressure inlet is directly introduced into the solenoid valve 2 through the oil pipe 21, and then the solenoid valve 2 The lubricating oil is introduced into the oil circuit in the cylinder head 11, and the variable ...

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Problems solved by technology

[0003] Conventional engine 1 is by the setting of this solenoid valve 2 and oil pipe 21, although can reach the inlet and exhaust valve switching of different lifts when the engine 1 runs at high and low speeds, yet, because solenoid valve 2 is locked by a plurality of screws 22 It is attached to the cylinder head 11, so it is relatively complicated to assemble, and the oil pipe 21 connected to the solenoid valve 2 has the fear of oil leakage, and it is exposed outside the engine 1, so it is easy to burn due to the high temperature of the engine 1. Embrittlement and damage will occur. In addition, since the solenoid valve 2 is arranged above the cylinder head 11, it is easy to cause the electromagnetic valve 2 to interfere with the upper parts such as the glove box when the engine 1 is swinging.

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