Fuel oil filter and fuel oil filter seat
A fuel filter and filter seat technology, which is applied in the direction of machines/engines, liquid fuel feeders, functional valve types, etc., can solve the difficulty of sealing the pump gland and the pump guide column, and the large fuel flow resistance And other issues
Inactive Publication Date: 2012-10-17
派克汉尼汾液压系统(上海)有限公司 +1
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Problems solved by technology
However, since check valves are installed between the pump oil chamber and the pump oil outlet, and between the pump oil chamber and the pump oil inlet chamber, and the fuel also passes through the manual pump, the resistance of the fuel flow is relatively large, and in In practice, it is found that it is difficult to maintain the flexibility of the pump gland of the manual pump and the tightness between the pump gland and the pump guide column; at the same time, due to the material and structure, the pressure of the manual pump under long-term working conditions can only be Around 0.2MPa
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[0023] Combine below Figure 1 to Figure 3 The first embodiment shown, Figure 4 to Figure 5 The second exemplary embodiment shown is an exemplary illustration of the fuel filter holder and the fuel filter at the same time.
[0024] Such as figure 1 As shown, the fuel filter includes a fuel filter seat 1 and a filter element 3.
[0025] Such as figure 2 As shown, the fuel filter seat 1 has an oil inlet 30 through which unfiltered fuel enters. The fuel here may contain impurities such as iron oxide, dust, and water. Fuel filter seat 1 also has pump oil inlet chamber 32, and pump oil inlet chamber 32 is defined by pipe joint 19, seal seat 21 and a counterbore of filter seat 1, pipe joint 19 has external thread, and The counterbore of the filter seat 1 is connected by an external thread, and the sealing seat 21 is threaded inside the pipe joint 19 . There is a movable spherical seal 20 in the oil inlet chamber 32 of the pump. The outer diameter of the spherical seal 20 is l...
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The invention relates to a fuel oil filter and a fuel oil filter seat. The fuel oil filter seat is integrated with a manual pump; corresponding to the manual pump, the fuel oil filter is provided with a pump oil inlet chamber, a pump oil inlet passage, and a pump oil outlet port; there is only one oil channel between the pump oil inlet chamber and the pump oil outlet port, wherein the oil channel sequentially passes through the pump oil inlet chamber, the oil inlet passage, a pump oil chamber of the manual pump, and the pump oil outlet port; a non-return valve is installed between the pump oil chamber and the pump oil outlet port, wherein the communicating direction of the non-return valve is the direction from the pump oil chamber to the pump oil outlet port; and characteristically, a sealing seat and a movable spherical sealing member are arranged in the pump oil inlet chamber, wherein the sealing seat is provided with an oil hole and the external diameter of the spherical sealing member is greater than the hole diameter of the oil hole of the sealing seat so that the spherical sealing member can seal the hole of the sealing seat. The fuel oil filter and the fuel oil filter seat of the invention have the advantages of small fuel oil resistance and high bearable pressure.
Description
technical field [0001] The present invention relates to a fuel filter and a fuel filter holder for an engine. Background technique [0002] The fuel filter is a fuel purification device that filters iron oxide, dust, moisture and other impurities in the fuel, so that the fuel delivered to the high-pressure fuel pump, fuel nozzle and other precision parts is clean, ensuring that these precision parts do not appear abnormal wear , to ensure stable operation of the engine and prolong its service life. [0003] The fuel filter includes a filter seat and a filter element. The filter seat is integrated with a manual pump corresponding to the manual pump. The filter is provided with a pump oil inlet chamber, a pump oil inlet passage and a pump outlet. The pump oil inlet chamber There is only one oil passage to the pump oil outlet, which passes through the pump oil inlet chamber, the pump oil inlet passage, the pump oil chamber of the manual pump and the pump outlet, between the pu...
Claims
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IPC IPC(8): F02M37/22F02M37/14F02M37/16F16K15/04
Inventor 陶士明刘成贵
Owner 派克汉尼汾液压系统(上海)有限公司