Crankcase ventilation system and its double-layer labyrinth structure
A crankcase ventilation and labyrinth technology, which is applied in the direction of crankcase ventilation, engine components, machines/engines, etc., can solve the problems of redundant oil and gas separation efficiency of external oil and gas separators, achieve reduced oil carrying capacity, simple and compact structure, The effect of easy disassembly and assembly
Active Publication Date: 2012-06-27
CHERY AUTOMOBILE CO LTD
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The invention solves the technical problems of redundant external oil-gas separator and low oil-gas separation efficiency, provides a simple and efficient crankcase ventilation system, improves the compactness of the engine and the high efficiency of the crankcase ventilation system
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0023] figure 1 Shown is a crankcase ventilation system with a double-layer labyrinth structure, including a timing cover 5 (gear chamber cover), a valve chamber cover 1 and a double-layer labyrinth structure. In the double-layer labyrinth structure, one of the layers is The labyrinth part 3 that communicates with the valve chamber cover, the other layer is the labyrinth part that divides baffle plate 4 and labyrinth cover 6 to form. Such as figure 2 As shown, the labyrinth part 3 communicating with the valve chamber cover is pear-shaped in appearance, and has a circular labyrinth structure 9 inside. After the oil and gas in the valve chamber cover (1) are initially separated through the valve chamber cover labyrinth (2), The oil and gas inlet (8) through the valve chamber cover is introduced into the labyrinth part (3) that communicates with the valve cha...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a crankcase ventilation system and a two-layer labyrinth structure thereof. The crankcase ventilation system comprises a timing cover cap, a valve chamber cover cap and the labyrinth structure. The labyrinth structure has two layers; a labyrinth part which is formed by a labyrinth division baffle and a labyrinth cover and is near an engine body is used for separating the oil and gas in the timing cover cap; a labyrinth part which is communicated with the valve chamber cover cap is used for separating the oil and gas from the valve chamber cover cap again; and the two labyrinth parts share a labyrinth oil return hole. Ensuring the multiple separation of the oil and gas in the crankcase ventilation system, the invention makes the oil and gas in the valve chamber cover cap and the timing cover cap be separated for a plurality of times through the new two-layer oil-gas separation labyrinth structure integrated in the timing chamber cover cap, thereby greatly improving the separation efficiency, reducing the engine oil carrying amount, further reducing the engine oil consumption of the engine, and saving a redundant ventilation pipe and an oil return pipe on theexternal part of the engine body. The crankcase ventilation system is characterized by simple and compact structure, and convenient assembly and disassembly.
Description
technical field [0001] The invention belongs to the field of engines, in particular to a crankcase ventilation system and a double-layer labyrinth structure. Background technique [0002] With the requirements of more and more stringent emission regulations, it has become a trend to control the emissions of the crankcase ventilation system through the oil and gas separator, but the oil and gas of the engine are mainly concentrated in the following parts, one is in the valve chamber cover , the second is inside the timing cover, and the third is inside the crankcase. The efficiency of oil and gas separation is often very low when simply separating a certain oil and gas concentration area. Since the external oil and gas separator not only needs to squeeze out a suitable layout in the original narrow space, but also requires additional ventilation pipes and oil return pipes to complete the closed-loop control of the crankcase ventilation system, so a simple and effective inter...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F01M13/04
Inventor 张士鹏赵辉芦清兆
Owner CHERY AUTOMOBILE CO LTD