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Oil pressure pulsation damper

A buffer and oil pressure technology, which is applied in the direction of engine components, machines/engines, liquid fuel feeders, etc., can solve the problems of metal plating or metal shavings falling, easy damage to the engine, and oil pollution, etc. Reinforcement, ease of maintenance work, prolonging the effect of service life

Inactive Publication Date: 2017-05-03
TIANJIN HANA TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the casing is made of metal, metal plating or metal shavings are likely to fall off during long-term work. If they are mixed in fuel, the oil will be polluted, and the metal shavings that are not filtered out in the oil will also flow to the engine with the oil. It is easy to damage the engine inside; and the user can intuitively observe and understand the working status of the oil pressure pulsation buffer. If the engine fails, the maintenance personnel must test and check each part one by one, which is troublesome; the traditional oil pressure pulsation buffer has the same The diaphragm is connected to a spring, and the pulsation sensitivity is slow, resulting in low precision of buffer pressure regulation

Method used

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  • Oil pressure pulsation damper

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Embodiment 1

[0009] The present invention provides an oil pressure pulsation buffer, which includes a housing 1, a diaphragm 2, an air chamber 3, a fuel chamber 4, an oil inlet 5, an oil outlet 6, a pressure gauge 7, a permanent magnet 8, a spring seat 9, The first spring 10, the second spring 11, the auxiliary spring 12, the adjustment screw 13, an air chamber 3 is provided inside the housing 1, and a fuel chamber 4 is arranged above the air chamber 3, and the air chamber 3 and the fuel chamber 4 pass through the diaphragm 2 One side of the fuel chamber 4 is provided with an oil inlet 5, and the other side is provided with an oil outlet 6, and a pressure gauge 7 is installed on the oil inlet 5 and the oil outlet 6 respectively, and a permanent magnet 8 is installed inside the fuel chamber 4, and the air chamber 3 A spring seat 9 is arranged inside, a first spring 10 is installed on the spring seat 9, a second spring 11 is installed on one side of the first spring 10, the first spring 10 an...

Embodiment 2

[0011] When in use, the fuel flows into the fuel chamber 4 inside the casing 1 from the fuel inlet 5. If the fuel pressure is too high, the fuel will exert a downward force on the diaphragm 2, and the first spring 10 and the second spring connected under the diaphragm 2 The spring 11 and auxiliary spring 12 will passively absorb this part of the pressure pulsation, and after the oil pressure becomes stable, it will be discharged from the oil outlet 6. During this process, the permanent magnet 8 will absorb the metal shavings in the oil to prevent the metal shavings from being mixed with the oil. The liquid flow damages the engine, and through the pressure gauge 7 provided on the oil inlet 5 and the oil outlet 6, the user can intuitively understand the working state of the equipment, which is convenient for maintenance work.

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Abstract

The invention provides an oil pressure pulsation damper which comprises a shell, a membrane and the like. The oil pressure pulsation damper is characterized in that the pulsation damper further comprises a first spring, a second spring, an auxiliary spring, a permanent magnet and pressure gages; an air chamber is formed in the shell; a fuel oil chamber is arranged above the air chamber; and the air chamber and the fuel oil chamber are connected through the membrane. By means of the oil pressure pulsation damper, the pressure gages are additionally arranged at the positions of an oil inlet and an oil outlet pipe, fuel oil pressure can be visually displayed in times of oil feeding and oil discharging, users can know the working state of the oil pressure pulsation damper visually, and thus maintenance work is facilitated during fault diagnosis and maintenance. Due to arrangement of the permanent magnet, the phenomena that metal chips fall off and are mixed into fuel oil, and accordingly the oil can be polluted and an engine can be damaged are avoided, and the using reliability of equipment is improved; the double-acting springs are connected with the membrane, bearing capacity of the springs is enhanced, the pulsation sensing speed is high, and the using reliability and pressure regulating buffering precision of products are improved; and meanwhile, the service life of the equipment is prolonged.

Description

technical field [0001] The invention relates to the technical field of fuel system equipment, in particular to an oil pressure pulsation buffer. Background technique [0002] The oil pressure pulsation buffer is a machine that slows down the pressure of the fuel pipeline of the car. When the injector injects fuel, fuel pressure pulsation will be generated in the delivery pipeline. The fuel pressure pulsation damper attenuates the fuel pressure pulsation to weaken the fuel pressure. The pressure pulsation transmission in the delivery pipeline reduces the noise. Too much fuel pressure and pulsation will cause the oil pressure regulator to work for a long time. The function of the oil pressure pulsation buffer is to reduce the pulsation and pulsation noise of the oil pressure in the fuel line, and to maintain a certain fixed pressure in the oil line after the engine stops, so as to facilitate the restart of the engine. Since the casing is made of metal, metal plating or metal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M37/00F02M37/22
Inventor 王晖
Owner TIANJIN HANA TECH