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Common rail system and pressure limiting valve

A common rail system and pressure limiting valve technology, applied in the direction of charging system, balance valve, valve device, etc., can solve the problems of difficult control, insufficient reliability, fuel pressure fluctuations, etc., and achieve the effect of ensuring the service life

Pending Publication Date: 2022-03-11
NO 711 RES INST CHINA SHIPPING HEAVY IND GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the inventor found that due to the complex structure of the high-pressure common rail system, there are still problems such as insufficient reliability and difficult control of fuel pressure fluctuations. Facing increasingly severe challenges, improving the reliability and stability of the high-pressure common rail system is an urgent need to solve technical problems

Method used

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  • Common rail system and pressure limiting valve
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  • Common rail system and pressure limiting valve

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Embodiment Construction

[0055] Reference will now be made in detail to various embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below. While the invention will be described in conjunction with exemplary embodiments, it will be appreciated that present description is not intended to limit the invention to those exemplary embodiments. On the contrary, the invention is intended to cover not only the exemplary embodiments but also various alternatives, modifications, equivalents and others, which may be included within the spirit and scope of the invention as defined by the appended claims. implementation plan.

[0056]In the following descriptions, the orientations or positional relationships indicated by "left", "right", "middle", "axial", "radial", "inner", "outer" or other orientation terms are based on the drawings The orientation or positional relationship shown is only for the convenience of describing the present invention and sim...

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Abstract

The invention provides a common rail system and a pressure limiting valve. The common rail system (100) comprises a first high-pressure oil pump (11) and a second high-pressure oil pump (12). The distribution block (2) comprises a collection inlet (21) and a collection outlet (22), the first high-pressure oil pump (11) and the second high-pressure oil pump (12) are respectively communicated with the collection inlet (21) of the distribution block (2), one-way valves are arranged between the first high-pressure oil pump (11) and the distribution block (2), and one-way valves are arranged between the second high-pressure oil pump (12) and the distribution block (2); the first pipeline (31) and the second pipeline (32) are located on the downstream portion of the distribution block (2) and communicate with a converging outlet (22) of the distribution block (2), oil ways of the first pipeline (31) and the second pipeline (32) communicate with each other in the distribution block (2), and the first pipeline (31) and the second pipeline (32) are correspondingly provided with a plurality of pressure stabilizing blocks (5) and a plurality of oil sprayers (4) respectively.

Description

technical field [0001] The invention relates to the technical field of fuel injection, in particular to a common rail system and a pressure limiting valve. Background technique [0002] The high-pressure common rail system is the core component of the diesel engine and plays the role of the power heart of the diesel engine. It largely gets rid of the problem that the fuel injection characteristics of the traditional mechanical fuel system are subject to large fluctuations in the engine speed and fuel injection pressure, and improves the fuel injection of the diesel engine. pressure, improved the spray atomization condition, and realized the flexible controllability of the fuel injection volume and fuel injection timing in the full working range of the diesel engine fuel injection, which has positive effects on optimizing the in-cylinder combustion of the diesel engine organization, reducing emissions and fuel consumption. role. [0003] However, the inventors found that due...

Claims

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Application Information

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IPC IPC(8): F02M55/02F16K17/04F16K17/164
CPCF02M55/025F16K17/04F16K17/164
Inventor 金江善王作群禹林业姜春宇郭鑫张泽华
Owner NO 711 RES INST CHINA SHIPPING HEAVY IND GRP
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