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V shaped engine for automobile

A technology for automobile engines and cylinder blocks, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., can solve the problems of increasing the complexity of engine assembly, affecting engine emissions, unfavorable vehicle layout, etc., and achieves the convenience of vehicle layout and structure Compact, well-separated effect

Active Publication Date: 2008-01-23
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the constraints of the space formed by the V angle in the middle of the V-shaped cylinder block and the configuration of the peripheral air intake device, the engine becomes larger, which is not conducive to the layout of the whole vehicle.
At the same time, external pipelines increase the complexity of engine assembly, and exhaust gas leakage is prone to occur, which affects engine emissions

Method used

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  • V shaped engine for automobile
  • V shaped engine for automobile

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Experimental program
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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing.

[0017] As can be seen in conjunction with accompanying drawings 1 and 2, a crankcase exhaust gas collection pool 3 is added to the V-angle area 2 of the cylinder block 1, and four ventilation holes 4 are arranged at the bottom of the collection pool. These four holes communicate with the crankcase composed of the cylinder block and the frame to introduce exhaust gas into the collection pool, and communicate with the cylinder head 6 through the four exhaust gas communication passages 5 in Figure 2, so that the pressure in the crankcase and each cylinder is uniform.

[0018] Seal the crankcase exhaust gas collection pool 3 with the crankcase exhaust gas collection pool cover plate 7 shown in Fig. form a crankcase ventilation device. The device reduces the flow velocity of the crankcase exhaust gas when passing through the crankcase exhaust gas collection pool 3 due to the in...

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Abstract

The invention discloses an automobile engine, for which, at the V-like angle area of a cylinder, a crankcase waste-gas collecting pond is added, at the bottom of which, four vent holes are provided. The four vent holes are communicated with the crankcase comprising the cylinder and a frame, and guides waste gas into the collecting pond; four waste-gas channels are communicated with the cylinder head, so that the pressure in the crankcase and cylinders are even. The crankcase waste-gas collecting pond that is covered by a cover plate, the four vent holes at bottom of the pond, and the four waste-gas channels at the inner side of the V-like angle of the cylinder together form a crankcase ventilation, which reduces the flow speed of the crankcase waste gas when passing through the crankcase waste-gas collecting pond due to increase of the flowing area, so that the oil-gas separation efficiency of the mixture gas of crankcase waste gas is greatly improved.

Description

technical field [0001] The invention relates to a vehicle engine, and more specifically relates to the structural design of a V-type 6-cylinder engine block for a vehicle. Background technique [0002] The ventilation device of the V-type engine block in the past is simple, and the crankcase waste gas passage is placed on the inner wall of the cylinder block, and directly leads to the cylinder head by the bottom of the cylinder block. The flow area of ​​the communication channel of crankcase exhaust gas in this structure is limited, and the exhaust gas after combustion in the crankcase exhaust gas and the separation of engine oil vapor cannot be realized well, so that the crankcase pressure is too high, causing crankcase gas blowing and engine oil leakage. [0003] In order to improve the separation quality of exhaust gas and oil vapor after combustion in the exhaust gas of the engine crankcase, some engines increase the area of ​​the ventilation holes inside the cylinder bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01M13/00F01M13/04
Inventor 罗春
Owner CHERY AUTOMOBILE CO LTD