CN221799918U - An intermittent oil return oil and gas separator - Google Patents

Abstract

The utility model discloses an intermittent oil return oil-gas separator, which is characterized in that: the oil-gas separator comprises an oil-gas separator main body and a one-way valve, wherein the right side of the upper part of the oil-gas separator main body is an air inlet, the left side of the lower part of the oil-gas separator main body is an air outlet, the center of the bottom of the oil-gas separator main body is an oil return port, the bottom of the oil return port is provided with a valve ball limiting port, and the outside of the oil return port is provided with external threads; the one-way valve comprises a valve seat and a valve ball, wherein an internal thread is arranged in the upper part of the valve seat, a valve seat oil return gap is arranged in the middle part of the valve seat, and the valve ball is arranged in the valve seat; the one-way valve is arranged on the oil return port. The utility model has the advantages of low cost, high integration level, simple maintenance, good model adaptability, excellent sealing effect and good oil-gas separation effect.

Description

An intermittent oil return oil and gas separator

Technical Field

The utility model relates to the field of diesel engines, in particular to an intermittent oil return oil-gas separator.

Background Art

The oil-gas separator is a major component of the crankcase ventilation system. It efficiently separates the oil in the crankcase blowby gas. Its separation performance has an important impact on the reliability and emissions of the engine. When the engine is running normally, a portion of the unburned combustible mixture and combustion exhaust gas in the cylinder will enter the crankcase through three pathways. These blowby gases will increase the temperature in the crankcase and increase the evaporation of the oil in the oil pan. The function of the oil-gas separator is to effectively separate the oil and gas.

The existing oil-gas separator is connected to the inside of the engine through a pipeline, and a one-way valve is set on the pipeline to recycle the filtered oil and use the one-way valve to block the blowby gas inside the engine. However, this layout has defects. The pipeline is too long, the cost is high, the appearance is poor, and the integration is poor. In many boundary conditions, it is impossible to ensure that the valve can be arranged vertically, the adaptability is poor, and the sealing effect is poor, resulting in poor oil-gas separation effect.

The disclosure of the above background technology content is only used to assist in understanding the utility model concept and technical solution of the utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above content has been disclosed on the filing date of this patent application, the above background technology should not be used to evaluate the novelty and creativity of the present application.

Utility Model Content

The purpose of the utility model is to provide an intermittent oil return oil-gas separator to solve the problems of the existing oil-gas separator having too long pipelines, high cost, poor appearance, poor integration, inability to ensure that the valve can be arranged vertically under many boundary conditions, poor adaptability, poor sealing effect, resulting in poor oil-gas separation effect.

In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

An intermittent oil return oil-gas separator, characterized in that it comprises an oil-gas separator body and a one-way valve, the right side of the upper part of the oil-gas separator body is an air inlet, the left side of the lower part of the oil-gas separator body is an air outlet, the bottom center of the oil-gas separator body is an oil return port, a valve ball limit port is provided at the bottom of the oil return port, and an external thread is provided on the outside of the oil return port; the one-way valve comprises a valve seat and a valve ball, an internal thread is provided in the upper part of the valve seat, a valve seat oil return notch is provided in the middle part of the valve seat, and the valve ball is installed in the valve seat; the one-way valve is installed on the oil return port.

Furthermore, the one-way valve is installed on the oil return port by cooperating between the internal thread and the external thread on the valve seat.

Furthermore, the main shell of the oil-gas separator is provided with a locking device.

Furthermore, the locking device is a clamp.

Furthermore, a mounting position is provided on the clamp.

Compared with the prior art, the advantages and beneficial effects of the utility model are:

1. The utility model integrates a detachable one-way valve at the lower part of the oil-gas separator body, which is always in a vertical state. The valve ball of the one-way valve is not affected by the overall bumps, so that the oil unloading efficiency is effectively improved. At the same time, the one-way valve is designed to be detachable, which is convenient for later disassembly and maintenance.

2. The one-way valve of the utility model is integrated with the main body of the oil-gas separator, which can ensure the vertical arrangement of the one-way valve in many boundary conditions. It has the advantages of low cost, high integration, simple maintenance, good machine adaptability, excellent sealing effect, and good oil-gas separation effect.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the utility model;

FIG. 2 is a schematic structural diagram of the utility model.

DETAILED DESCRIPTION

The present invention is further described in detail below in conjunction with specific implementations. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present invention.

As shown in Figures 1 and 2, an intermittent oil return oil-gas separator is characterized in that it includes an oil-gas separator body 1 and a one-way valve 2. The right side of the upper part of the oil-gas separator body 1 is an air inlet 3, which is used to connect to the inside of the engine through a pipeline, lead out the blow-by gas inside the engine, and separate the engine oil. The left side of the lower part of the oil-gas separator body 1 is an air outlet 4, which is used to connect to the atmosphere through a pipeline to discharge the separated blow-by gas out of the engine. The center of the bottom of the oil-gas separator body 1 is an oil return port 5, which is used to connect to the inside of the engine and recycle the filtered engine oil. The bottom of the oil return port 5 is provided with a valve ball limit port 6, which is used to cooperate with a valve ball 8 to close the oil return port 5, and the outside of the oil return port 5 is provided with an external thread; the one-way valve 2 includes a valve seat 7 and a valve ball 8, the upper part of the valve seat 7 is provided with an internal thread, and the middle part of the valve seat 7 is provided with a valve seat oil return notch 9, which is used to return the separated engine oil to the inside of the engine, and the valve ball 8 is installed in the valve seat 7; the one-way valve 2 is installed on the oil return port 5.

The one-way valve 2 is installed on the oil return port 5 by means of the cooperation between the internal thread and the external thread on the valve seat 7 .

The outer shell of the oil-gas separator main body 1 is provided with a locking device 10, and the locking device is a clamp, and a mounting position 11 is provided on the clamp.

The principle of the utility model is as follows: in the working state, the pressure of the internal gas of the engine pushes the valve ball 8 toward the valve ball limit port 6 of the oil return port 5, closing the oil return channel; in the oil unloading state: when the engine is shut down, the valve ball 8 falls back onto the valve seat 7 under the action of gravity, and the oil is unloaded through the oil return notch 9 of the valve seat; when a large amount of oil accumulates, the valve ball 8 can also overcome the internal gas pressure and fall back, thereby achieving the effect of intermittent oil unloading.

The above contents are further detailed descriptions of the present invention in combination with specific/preferred implementations, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, they can also make several substitutions or modifications to the described embodiments without departing from the concept of the present invention, and these substitutions or modifications should be regarded as belonging to the protection scope of the present invention.

Claims (5)

1. An intermittent oil return oil-gas separator, characterized in that it comprises an oil-gas separator body and a one-way valve, the right side of the upper part of the oil-gas separator body is an air inlet, the left side of the lower part of the oil-gas separator body is an air outlet, the bottom center of the oil-gas separator body is an oil return port, a valve ball limit port is provided at the bottom of the oil return port, and an external thread is provided on the outside of the oil return port; the one-way valve comprises a valve seat and a valve ball, an internal thread is provided in the upper part of the valve seat, a valve seat oil return notch is provided in the middle part of the valve seat, and the valve ball is installed in the valve seat; the one-way valve is installed on the oil return port. 2. An intermittent oil return oil-gas separator according to claim 1, characterized in that the one-way valve is installed on the oil return port by matching the internal thread and external thread on the valve seat. 3. An intermittent oil return oil-gas separator according to claim 1, characterized in that: the main shell of the oil-gas separator is provided with a locking device. 4. An intermittent oil return oil-gas separator according to claim 3, characterized in that the locking device is a clamp. 5. An intermittent oil return oil-gas separator according to claim 4, characterized in that: a mounting position is provided on the clamp.