TWI665643B - Device for detecting blown cylinder head gasket - Google Patents

Abstract

A cylinder mattress burnout detecting device comprises a gas collecting device, a gas sensor coupled to the gas collecting device, and an information reading device electrically connected to the gas sensor; The exhaust gas generated by the operation of the engine invades the cooling water channel and occupies the auxiliary water tank. Therefore, the present invention collects the gas in the vehicle water tank, the auxiliary water tank or the water tank and the auxiliary water tank through the gas collecting device, and then passes through the gas sensor to detect Detect whether a specific gas is contained in the gas collecting device and convert the detection result into a signal. Finally, the information reading device reads the signal from the gas sensor and determines the gas concentration, thereby knowing whether the cylinder mattress has been burn.

Description

Cylinder mattress burnout detection device

The present invention relates to a detecting device; more particularly, to a cylinder mattress burn-in detecting device for determining whether a cylinder mattress sheet is burned and can be reused multiple times.

With the rapid development of the automobile industry, the maintenance method of the vehicle has also been updated, and the emergence of computer diagnostic equipment allows maintenance personnel to easily and easily find out the cause of the vehicle's failure, but how to use the computer diagnostic equipment will always come across A fault that cannot be diagnosed is like detecting whether the cylinder mattress is burnt. The reason is that the cylinder mattress is not damaged and is not noticeable when it is damaged, and the initial combustion of the gasket will cause a little engine to run. Exhaust gas runs into the cooling water channel, which causes the cooling water in the water tank to evaporate, causing insufficient water in the water tank and reducing the cooling effect, causing the engine to overheat, and the engine will burn the cylinder mattress without sufficient cooling water to help cool down. Severe, such a vicious cycle will eventually lead to exhaust gas also running to the oil passage and deteriorating the oil, resulting in poor lubrication of the engine parts and resulting in wear and tear of the machine. It can be seen that the damage of the cylinder mattress is not too small for the engine. watch for.

At present, the test method for the damage of the cylinder mattress is only used to detect the gas in the water tank. The bromine blue (Bromothymol blue) contained in the test agent will be from the original blue after being exposed to carbon dioxide. It turns green, so it can be known from the change of the color of the drug whether the water tank contains high concentration of carbon dioxide and is used as the basis for damage to the cylinder mattress.

However, the drug test is a one-time test method, so whether it is detected whether the damage of the cylinder mattress piece can not be reused, plus the price of the drug itself is not low and it is difficult to detect a slight air leak condition, so that the cylinder mattress piece The detection of damage is not precise and expensive, so if an instrument for detecting the damage of the cylinder mattress is designed to be used by the car repair technician with more accurate, cheap and easy to use, the cylinder can be detected as early as possible. Is the mattress sheet damaged?

In view of this, the applicant of this case has been engaged in research and development experience in related fields for many years, and has conducted in-depth discussions on the above-mentioned shortcomings, and actively sought solutions according to the above-mentioned needs. After a long period of hard work and many tests, the applicant finally completed this book. invention.

The main object of the present invention is to accurately determine the damage of the cylinder mattress piece by a simple and convenient method.

The secondary purpose of the present invention is to reduce the misjudgment of the technician's fault detection, and to reduce the excessive maintenance cost of the owner due to the technician's misjudgment, and to improve the reliability of the owner to the service technician.

The cylinder mattress burnout detecting device of the present invention for the above purpose includes a gas collecting device, a gas sensor, and an information reading device.

The gas collection device is used to collect gas in a vehicle water tank, a secondary water tank, or a water tank and a secondary water tank connection pipe.

The gas sensor is coupled to a gas collection device for detecting whether the gas collection device contains carbon monoxide (CO), carbon dioxide (CO ₂ ), hydrocarbons (HC), and nitrogen oxides ( NO _x )...etc. one or more of the gases, and convert the detected result into a signal.

The information reading device is electrically connected to the gas sensor, and the information reading device is configured to read the signal emitted by the gas sensor and determine the gas concentration, thereby knowing whether the cylinder mattress has been burnt.

The cylinder mattress burnout detecting device of the present invention has the following advantages: 1. The present invention has the characteristics of being durable and capable of repeated use. 2. The material cost required for testing is relatively inexpensive.

A more detailed understanding of the objects, functions, features and structures of the present invention will be apparent.

First, please refer to FIG. 1 , FIG. 2 and FIG. 3 . FIG. 1 is a schematic diagram of a burning device for detecting a burnt-out of a cylinder mattress according to the present invention, FIG. 2 is a schematic view showing the operation of a burning device for burning a cylinder mattress of the present invention (1), and FIG. 3 is a cylinder of the present invention. Schematic diagram of the operation of the mattress burning test device (2).

The cylinder mattress burnout detecting device 1 of the present invention comprises a gas collecting device 11, a gas sensor 12, and an information reading device 13.

The gas collecting device 11 is configured to collect the gas in the connecting pipe of the vehicle water tank 2, the auxiliary water tank 3 or the water tank 2 and the auxiliary water tank 3, and the gas collecting device 11 is provided with a dehumidifying element 111 for adsorbing moisture or It is a liquid-gas separation device that separates a liquid and a gas, wherein the dehumidifying element 111 is a sponge.

The gas sensor 12 is coupled to a gas collection device 11 for detecting whether the gas collection device 11 contains carbon monoxide (CO), carbon dioxide (CO ₂ ), hydrocarbons (HC), One or more of the gases such as nitrogen oxides (NO _x ), and convert the detected results into signals.

The information reading device 13 is electrically connected to the gas sensor 12, and the information reading device 13 is configured to read the signal emitted by the gas sensor 12 and determine the gas concentration, thereby knowing whether the cylinder mattress piece is The information reading device 13 is further provided with a plurality of light-emitting elements 131 capable of emitting light of different colors and a prompting element 132 for emitting an alarm sound, and the information reading device 13 is different in light or blinking. The color light-emitting element 131 and the sound-inducing element 132 notify the inspector whether the cylinder mattress piece has been burned, and the information reading device 13 can be further connected to a device with information processing functions such as a computer or a tablet computer. The read signal is converted into a more detailed value for presentation, thereby determining the condition of the damage of the cylinder mattress piece, wherein the prompting element 132 can be a buzzer or a horn.

The embodiments related to the present invention and related reference drawings are as follows:

If the cylinder head gasket of the vehicle is damaged, carbon monoxide (CO) generated by the engine is running will, carbon dioxide (CO _2), hydrocarbon (the HC), nitrogen oxides (NO _x) ... and other emissions and oil cooling water intrusion The passage and the liquid flowing in the cooling water passage will eventually flow into and accumulate in the water tank 2 or the sub tank 3 as the liquid in the cooling water passage and the oil passage flows.

Therefore, if it is necessary to detect whether the gasket is damaged, the inspector only needs to open the water tank cover, insert the gas collecting device 11 into the water tank hole, and diffuse the gas in the water tank 2 into the gas collecting device 11, followed by gas sensing. The device 12 begins to interpret whether the gas in the gas collecting device 11 contains exhaust gas generated by the operation of the engine, and the gas sensor 12 continuously transmits the read signal to the information reading device 13 during the reading process.

In addition, the inspector may also select the gas tank cover 11 to be inserted into the sub tank 3 after the sub tank cover is opened, and the gas in the sub tank 3 is diffused into the gas collecting device 11, and then the gas sensor 12 begins to interpret. Whether the gas in the gas collecting device 11 contains the exhaust gas generated by the operation of the engine, and the reading signal is continuously transmitted to the information reading device 13 during the reading of the gas sensor 12.

Continuing to refer to FIG. 4, FIG. 4 is a schematic diagram (3) of the operation of the cylinder mattress burnout detecting device of the present invention.

When the information reading device 13 receives the signal, the reading is started. If the result of the reading finds that the concentration of the exhaust gas reaches a dangerous value, the light-emitting element 131 disposed on the information reading device 13 emits red light and simultaneously transmits a prompt. Element 132 emits a warning sound, at which point the tester will know that the cylinder mattress piece is damaged and needs to be replaced.

Continuing to refer to FIG. 5 and FIG. 2 and FIG. 3, FIG. 5 is a schematic diagram of the operation of the cylinder mattress burnout detecting device of the present invention (4).

On the other hand, if the result of the interpretation finds that the concentration of the exhaust gas in the water tank 2 or the sub-tank 3 is lower than the dangerous value, only the yellow light is emitted from the light-emitting element 131 provided on the information reading device 13, and the detecting personnel will know The cylinder mattress sheet can still be used without being replaced, and it is also necessary to pay special attention to that the color of the light of the light-emitting element 131 can be adjusted according to the user's needs, and the color of the light that can be emitted is not limited to the embodiment. And red and yellow.

Continuing to refer to FIG. 6, FIG. 6 is a schematic diagram of the operation of the cylinder mattress burnout detecting device of the present invention (5).

Finally, if the inspector wants to know more about the degree of damage to the cylinder mattress, it is only necessary to connect the information reading device 13 to the computer and read the signal through the computer, so that the measurement can be clearly represented by the value on the computer screen. The concentration of the exhaust gas to the exhaust gas, and then the level of the exhaust gas concentration to determine the extent of damage to the cylinder mattress.

In summary, the advantages of the cylinder mattress burnout detecting device of the present invention are as follows: 1. The use of a gas sensor instead of the detection of the medicament makes the present invention durable and capable of repeated use. 2. Whether the water tank, the auxiliary water tank or the exhaust gas in the connecting tank of the water tank and the auxiliary water tank is high or low, it can be detected by the gas sensor, and then the information reading device and the information processing function can be connected. The severity of the leak is shown by a specific number. 3. The present invention, which can be reused to the damage of a part, is relatively less expensive than the detection of a single agent compared to a medicament that can only be tested once.

Therefore, the present invention has excellent advancement and practicability in similar products, and after consulting domestic and foreign technical documents on such structures, it is true that no identical or similar structure exists before the application of the case, so the case It should meet the patent requirements of "creative", "combined with industrial use" and "progressive", and apply in accordance with the law.

It is to be understood that the foregoing description of the preferred embodiments of the invention is intended to be

1‧‧‧Cylinder mattress burnout detection device

11‧‧‧Gas collecting device

111‧‧‧Dehumidifying components

12‧‧‧ gas sensor

13‧‧‧Information reading device

131‧‧‧Lighting elements

132‧‧‧Reminder components

2‧‧‧Water tank

3‧‧‧Sub tank

Figure 1: Schematic diagram of the burning device for detecting the burning of the cylinder mattress of the present invention; Figure 2: Schematic diagram of the operation of the burning device for burning the cylinder mattress of the present invention (Fig. 3); Figure 3: Schematic diagram of the operation of the burning device for detecting the cylinder mattress of the present invention (2); Figure 4: Schematic diagram of the operation of the cylinder mattress burnout detecting device of the present invention (3); Figure 5: Schematic diagram of the operation of the cylinder mattress burnt detecting device of the present invention (4); Figure 6: Schematic diagram of the operation of the cylinder mattress burnout detecting device of the present invention (Fives).

no.

Claims (8)

A cylinder mattress burnout detecting device comprises a gas collecting device, a gas sensor and an information reading device; the gas collecting device is used for collecting a water tank of a vehicle, a auxiliary water tank or a connecting pipe between the water tank and the auxiliary water tank The gas sensor is coupled to a gas collection device for detecting whether carbon monoxide (CO), carbon dioxide (CO ₂ ), hydrocarbon (HC), and nitrogen oxides are contained in the gas collection device. One or more gases (NO _x ), and converting the detected result into a signal; the information reading device is electrically connected to the gas sensor, and the information reading device is used for reading gas sensing The signal from the device determines the gas concentration, and then knows whether the cylinder mattress has been burnt. The cylinder mattress burn-in detecting device according to claim 1, wherein the gas collecting device is provided with a dehumidifying element or a liquid-gas separating element. The cylinder mattress burn-in detecting device of claim 2, wherein the dehumidifying element is a sponge. The cylinder mattress burn-in detecting device according to claim 1, wherein the information reading device is provided with a plurality of light-emitting elements capable of emitting light of different colors. The cylinder mattress burn-in detecting device according to claim 1, wherein the information reading device is provided with a prompting component that emits an alert sound. The cylinder mattress burn-in detecting device according to Item 5, wherein the prompting component is a buzzer or a horn. The cylinder mattress burn-in detecting device according to Item 1, wherein the information reading device is connected to a device having an information processing function, and the read signal is converted into a device through a device having an information processing function. Detailed values are presented. The cylinder mattress burn-in detecting device according to Item 7, wherein the information processing function device is a computer or a tablet computer.