Engine and piston cooling nozzle assembly

A technology of piston cooling nozzles and assemblies, which is applied in the cooling of engines, engine components, machines/engines, etc., can solve the problems of excessive cooling and cooling of pistons, adverse engine performance, etc., and achieve the effect of efficient operation

Inactive Publication Date: 2017-01-04
WEICHAI POWER CO LTD
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  • Abstract
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Problems solved by technology

[0004] Although the piston cooling nozzle assembly in the form of double nozzles improves the cooling effect on the piston, it does not take into account the actual difference in the cooling capacity between the bottom of the piston and the internal cooling oil passage of the piston. Sometimes the two parts of the piston are completely different. There is no need to cool at the same time, but in the prior art, the two nozzles are always opened and closed at the same time without any distinction. In fact, it is easy to cause excessive cooling and insufficient cooling of the piston, which is not conducive to the improvement of engine performance

Method used

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Embodiment Construction

[0033] One of the cores of the present invention is to provide a piston cooling nozzle assembly, so as to properly cool the pistons of the engine, thereby ensuring efficient operation of the engine.

[0034] Another core of the present invention is to provide an engine using the above-mentioned piston cooling nozzle assembly.

[0035] The piston cooling nozzle assembly disclosed in the embodiment of the present invention includes a base body 1 and a plurality of nozzle units arranged on the base body 1, and each nozzle unit is used to cool different positions of the piston. According to the technology, the core improvement point of the piston cooling nozzle assembly is that as the oil pressure increases, the number of individual nozzles that are opened gradually increases; as the oil pressure decreases, the number of individual nozzles that are opened gradually decreases.

[0036] Those skilled in the art are well aware that the level of engine oil pressure is directly proport...

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Abstract

The invention relates to a piston cooling nozzle assembly, comprising a base and a plurality of single nozzles arranged on the base to cool different parts of the pistons; with rise of engine oil pressure, more single nozzles are gradually opened; with fall of the engine oil pressure, less single nozzles are gradually opened. The flow of lubricant for cooling a piston can be suitably adjusted according to different working conditions so as to ensure suitable cooling for the piston and implement efficient running of the engine; the invention also discloses an engine using the piston cooling nozzle assembly.

Description

technical field [0001] The invention relates to the technical field of engine production, in particular to an engine and a piston cooling nozzle assembly thereof. Background technique [0002] During the working process of the engine, the piston needs to be cooled. The existing piston is generally cooled by internal cooling. The so-called internal cooling means that the oil sprayed from the piston cooling nozzle enters the internal cooling oil passage of the piston and circulates inside the piston to achieve Cooling of the piston. However, this cooling method sometimes cannot satisfy the cooling of engine pistons running at high loads. [0003] For this reason, the piston cooling nozzles in some engines are designed in the form of double nozzles, such as figure 1 and figure 2 As shown in , the nozzle 01 of the dual-nozzle piston cooling nozzle assembly is connected to the nozzle pipe 02, and the nozzle pipe 02 is connected to the distribution pipe 03. The oil that comes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01P3/08F01P7/14
CPCF01P3/08F01P7/14F01P2007/146
Inventor 赵文彬齐伟韩承敏崔凯王有治张长冲朱海燕宋娇
Owner WEICHAI POWER CO LTD
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