JPS5939201Y2 - gas purification equipment - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a gas purification device.

Generally, this type of device is installed in the gas path between the gas supply source and the servo motor to prevent foreign matter in the gas, such as gasoline, from entering the servo motor.

However, in the conventional device, the filter was simply inserted into a housing installed in the middle of the gas passage, so if liquid such as gasoline was contained in the gas, it was difficult to purify it. Because the gas was not supplied to the servo motor together with the gas, problems such as the servo motor being swollen with gasoline may occur, or if the gas contained foreign matter such as dust, the servo motor This has the disadvantage that the dust and the like adheres to the orifice inside and causes clogging, which in turn deteriorates the performance of the servo motor.

Therefore, the present invention provides a gas purifying device characterized in that a baffle member is provided on the artificial side of the housing in order to eliminate the above-mentioned drawbacks.

Embodiments of the present invention will be described below with reference to FIGS. 1-2 in accordance with the accompanying drawings.

The gas purifying device 10 has its outer shape omitted by integrally joining the housings 11 and 12.

The housing 11 has an inlet passage 11a, and the housing 12 has an outlet passage 12a, and the outlet passage 12a of the internal space formed by both the housings
On the side, there is a coarse filter 13 and a fine filter 14.
is inserted, and the person 11 passage 11a of the internal space is inserted.
A baffle member 15, which is the main part of the present invention, is provided between the filter 13 and the filter 13.

The baffle member 15 has a substantially cylindrical shape, and has an open wall 15a on the person 1 side and a closed wall 15a on the other side, and a small hole 15b in the cylindrical portion. .

At this time, the baffle member 15 is connected to the filter 13. 14
It is held so as to be pressed toward the passenger passageway 11a side of the housing 11.

Therefore, the gas entering from the person 1-1 passage 11a flows through the small hole 1.
5a through the outlet passage 12a via the filter 13.14.
However, if the gas contains foreign matter such as gasoline or dust, the closing wall 15a
As a result, foreign matter coming from the inlet passage 11a directly collides with the baffle member 15 in FIG. The gas is supplied to the outlet passage 12a side through the gas to purify foreign matter in the gas.

Next, an example in which the device of the present invention is applied to an automobile exhaust gas purification system will be explained with reference to FIG.

The gas purifying device 10 is operated by one of the persons [1 passage 11a or the intake manifold side bow h20 of the carburetor 20].
a (hereinafter referred to as the in-maniport).

) and the other exit passage 12a are vacuum I.
Transmitting valve 30 (hereinafter referred to as V, T, V).

) are arranged so as to communicate with the respective inlets 30a.

The outlet 30b of the V, T, V, 30 is a well-known vacuum control valve 40 (hereinafter referred to as V, C, V
, not called.

) is in communication with the inlet 40a. Therefore, when the negative pressure in the intake manifold 20a is higher than the set value, for example, when the engine is idling, when the car is running at low speed, during light acceleration, and when the car is decelerating, the air purifier 10
The high negative pressure on the side is transmitted to the outlet passage 12a side through the small hole 15b of the baffle member 15 via the filter 13.14, and then pushes the umbrella-shaped check valve 31 from the inlet 30a of V, T, V, 30. Open, outlet 30b
From V, C, V, inlets h 40 through a chamber 4
1, and the transmitted high negative pressure causes the diaphragm 43 and the valve 44 connected thereto to move downward in FIG. 3 against the biasing force of the spring 42. The port 40b communicating with the pump is an exhaust port of an engine (not shown) (a catalyst such as activated carbon is installed inside).

), and the air from the air pump is injected into the exhaust port, resulting in CO (-carbon oxide), which is likely to be generated in the various conditions mentioned above. HC (hydrocarbons) is oxidized by the catalyst and released as a harmless gas.

On the other hand, when the negative pressure in the intake manifold 20a becomes lower than the set value, for example when the car is at high speed or accelerates suddenly, the passage 11a
Since the negative pressure on the outlet 30b side is higher than the negative pressure on the outlet 30b side, the negative pressure on the outlet 30b side is gradually transmitted to the passage 11a side via the orifice 32, and the negative pressure in the passage 11a reaches the set value. The above-mentioned V within the predetermined time until
, C, V, 40 are electrically connected, but after the predetermined period of time, the biasing force of the spring 42 becomes greater than the negative pressure acting on the chamber 41. The diaphragm 43 and the valve 44 are moved upwardly to the position shown in the third figure, thus opening the passage 40b.
and 40c, and the passage 40b is
Passage 4 communicating with an air cleaner (not shown) as shown
0d, the air from the air pump escapes to the air cleaner, and the temperature inside the engine combustion chamber increases when the vehicle is running at high speeds or suddenly accelerates, causing damage to the exhaust port, which is particularly sensitive to high temperatures. By supplying air to the catalyst, it is possible to prevent the risk of combustion leading to a fire in the automobile.

Here, when the negative pressure of the above-mentioned intake manifold 20a becomes lower than the set value, because the device 10 of the present invention is provided, the air flow is directed to the artificial passage 11a.
The side becomes the exit passage 12a side, and therefore, at this time, foreign substances such as gasoline and dirt come from the intake manifold 1□ 20a to the passage 11a, but the closing wall 1 of the baffle member 15
5a and is dropped, resulting in pure air (
However, in the case of dust, the filter 13 is air containing dust that is smaller than the small hole 15b.

After being further purified in 14, the passage 1
2a to V. T. V. It will be supplied within 30 days,
As a result, ■ V. This prevents the orifice 32 in the valve 30 from clogging, and also prevents the umbrella-shaped check valve 31 from swelling due to gasoline.

In other words, the device 10 of the present invention is connected to the intake manifold 20a and the V. T
．． V. 30, the V.30 is lower than that of conventional products. T. V. It can be said that the durability of No. 30 can be improved without deteriorating its performance.

The device of the present invention is not limited to this application example, but if installed in the middle of the path between the gas supply source and the servo motor, it can sufficiently purify foreign substances in the gas. That should be obvious.

Furthermore, according to the embodiment of the device of the present invention, only one baffle member is provided in the housing so as to be exposed to the passage on the gas supply source side, but it may be used in a multi-system system as required. In some cases, there may be more than one, i.e., a closed wall and an internal space located in the area where the gas comes, and where foreign objects in the gas can collide and fall, and pure gas (mainly air). It is sufficient if there is a passageway through which the person can pass.

As described in detail above, according to the present invention, the housing is provided with an artificial passage communicating with the gas supply source and an outlet passage communicating with the servo motor, and the outlet passage 2 is provided on the outlet 1'' passage side of the internal space formed in the housing. A substantially cylindrical baffle member is disposed between the filter inlet [1'J passage and the baffle member to form a gap in the upper part of the internal space in the housing. The baffle member has a shape in which the inlet is generally open, the outlet is formed with a closed wall on the side of the first passage, and a small hole is formed in the cylindrical side wall. is arranged so that it is pressed toward the artificial passageway by the filter.

Therefore, foreign substances such as gasoline and dust contained in the gas flowing in from the first passage collide with the closing wall of the baffle member and do not fall, so only purified gas is supplied to the servo motor. Performance deterioration due to foreign objects in the servo motor is prevented.

That is, even if the gas is a wet gas containing oil, water, etc., after the gas collides with the closed II wall, the moist dirt such as oil and water is separated downward, and only the dry gas passes through the filter. Therefore, even if the downstream filter is a dry filter that collects the dried dust, it is sufficient.

[Brief explanation of the drawing]

Figure 1 is a side view of the device of the present invention, and Figure 2 is A-A in Figure 1.
1 New perspective: Figure 3 is a schematic diagram of the device of the present invention applied to an automobile exhaust gas purification system. 10: Gas purifier, 11: Housing, 11a: Artificial passage, 12: Housing, 12a: Outlet [1 passage, 13° 14: Filter, 15: Baffle member, 15a: Opening, 15b: Small hole, 20: Gas Supply source, 30: Servo motor.

Claims (1)

[Scope of utility model registration request] a housing having an artificial passage communicating with a gas supply source and an outlet passage communicating with a servo motor; a two-layer filter disposed on the outlet passage side of an internal space formed within the housing; a substantially cylindrical baffle member disposed between the filter and the inlet passage so as to form a gap on the side of the internal space, the baffle member being open on the inlet passage side; A closing wall is formed on the passage side of the outlet 1-], and a small hole is formed in the upper part of the cylindrical side wall, and the baffle member is connected to the hole [2] on the passage side by the filter. A gas purification device characterized in that it is arranged to be pressed.