Variable-displacement hydraulic control valve of engine

Abstract

A variable-displacement hydraulic control valve of an engine relates to the technical field of automobiles, comprising a valve body (1), a valve gland (2), valve plugs (3) and return springs (4); wherein, the valve body (1) is internally provided with a plurality of valve chambers formed by valve plug chambers (5) and spring chambers (6); pressure chambers (7) are arranged above the valve plug chambers (5); at least an upper overflowing hole (8) is arranged between each valve plug chamber (5) and the pressure chamber (7) arranged above the valve plug chamber for communicating the two chambers; a lower overflowing hole (9) is arranged at a position on the bottom of the valve body (1) and the position is corresponding to the upper overflowing hole (8); the lower overflowing hole (9) is communicated with the valve plug chamber (5); oil inlets (10) are arranged on the valve gland (2) and are communicated with the valve plug chambers (5) and the pressure chambers (7); overflowing ring slots (11) are arranged in the middles of the valve plugs (3) which are positioned in each valve plug chamber (5); the return springs (4) are positioned in each spring chamber (6); the end openings of thespring chambers (6) are connected with plugs (14) by bolts. The hydraulic control valve has the advantages of simple structure, low manufacturing cost, safety and reliability, and can simultaneously control multi-unit fuel cylinders.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a hydraulic control valve used for engine variable displacement control. Background technique [0002] The emergence of automobiles has improved the production and life of human beings. With the advancement of automobile technology, various automobile-related products and components have also been continuously developed and improved. In order to meet the needs of saving energy and reducing consumption, automobile engines have begun to apply variable displacement technology. At present, this technology can only be achieved by a few manufacturers, and it is only applied to large displacement engines with six cylinders or more. This variable displacement technology It only changes between half cylinders and all cylinders, the range of variation is narrow, and it cannot better achieve the purpose of energy saving and emission reduction. Existing products such as Chrysler's HEM1 e...

AI Technical Summary

Problems solved by technology

In order to meet the needs of saving energy and reducing consumption, automobile engines have begun to apply variable displacement technology. At present, this technology can only be achieved by a few manufacturers, and it is only applied to large displacement engines with six cylinders or more. This variable displacement technology It only changes between half cylinders and all cylinders, the range of variation is narrow, and it cannot better achieve the purpose of energy saving and emission reduction. Existing products such as Chrysler's HEM1 engine, Honda's 3.5LV6, etc., are controlled by electronic Independent control by technology has disadvantages such as complex structure, high cost, susceptible to electromagnetic interference and unreliable

In addition, the existing transmission can only perform its own speed regulation function, and cannot cooperate with the engine to achieve further energy-saving purposes

The two patents I previously applied for are 200910071324.3 and 200920099230.2, respectively disclosing a hydraulically controlled automatic transmission and an automatic control valve for an automatic transmission, but did not disclose the variable displacement control device

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