engine timing cover

Abstract

The invention relates to a correct timing cover piece of a motor. The cover piece is characterized in that an installation support lug and a water pump installation support lug are installed on the edge of the cover piece, the cover piece is formed by an upper correct timing cover piece and a lower correct timing cover piece in an overlap joint mode, a first overlap-joint step is installed on the overlap-joint edge of the upper correct timing cover piece and a second overlap-joint step is installed on the overlap-joint edge of the lower correct timing cover piece. The upper correct timing cover piece and the lower correct timing cover piece are connected in the overlap joint mode through the first overlap-joint step and the second overlap-joint stage. The first overlap-joint stage is provided with a first water pump installation hole, the second overlap-joint stage is provided with a second water pump installation hole, and after the upper correct timing cover piece and the lower correct timing cover piece are connected in the overlap-joint mode, the first water pump installation hole and the second water pump installation hole are overlapped. The water pump installation support lug is located on the lower correct timing cover piece, a length ratio of the upper correct timing shroud cover piece and the lower correct timing cover piece is 2-4: 6-8. The correct timing cover piece of the motor has the advantages of enabling a correct timing adjustment of the motor and maintaining of a camshaft gear train to be convenient.

Description

technical field [0001] The invention relates to parts of an automobile engine, in particular to an engine timing cover. Background technique [0002] With the development of the automobile industry, people have higher and higher requirements on the maintenance man-hours and costs of automobiles. In order to reduce the maintenance man-hours and costs of the engine, not only the design cost, reliability and strength, but also the operability and maintenance cost of the after-sales maintenance process need to be considered in the design process of the engine timing gear train cover. [0003] Such as image 3 As shown, the existing engine timing cover is an integral type, and the upper edge of the engine timing cover 5 is provided with two mounting lugs 3 connected with the cylinder head cover, and the left edge is arranged in sequence from top to bottom. There is one installation lug 3 connected with the rear cover, one water pump installation lug 4 connected with the water pu...

AI Technical Summary

Problems solved by technology

When adjusting the engine timing and maintaining the camshaft gear train, the peripheral water pump gear train, compressor gear train and crankshaft pulley must be disassembled before the engine timing cover and camshaft gear train can be removed. The time is too long and the workload is heavy, resulting in high maintenance costs; in addition, the integral engine timing cover has a large area, which is prone to problems such as thermal deformation and poor precision control

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