A device capable of detecting the airtightness of an exhaust manifold and its application method

Abstract

The invention provides novel equipment capable of detecting exhaust manifold airtightness and an application method. The novel equipment comprises a detection vehicle, a starter, an alarm device and awater-gas three-way main pipe, wherein a plurality of vertical and transverse slideways are arranged on three sides of the detection vehicle, a plurality of clamping devices and a sealing device witha first claw stretch out from the inner portion of the vertical and transverse slideways, the clamping devices and the sealing device are respectively connected with a power device, a tail end of thepower device penetrates through the vertical and transverse slideways, the power device moves on the vertical and transverse slideways, the detection vehicle is provided with automatic water injection pipe fittings and automatic air transmission pipe fittings, the starter and the alarm device are arranged outside the detection vehicle and are connected with a control system through sensors, the water-gas three-way main pipe is provided with an exhaust manifold connection device and is further provided with two branch pipes, and the branch pipes are respectively connected with the automatic water injection pipe fittings and the automatic air transmission pipe fittings. The novel equipment is advantaged in that manifold airtightness is detected through compression water seepage, the detection effect is visual and obvious, and one machine multiple purposes is realized.

Description

technical field [0001] The invention belongs to the technical field of auto parts, and relates to a device capable of detecting the airtightness of an exhaust manifold and a use method. Background technique [0002] The exhaust manifold is connected to the cylinder block of the automobile engine, and the exhaust gas discharged from each cylinder is collected and introduced into the exhaust main pipe, with a conduit with branch lines. At present, the common practice of various engine manufacturers is to package the three-way catalytic converter used to purify the exhaust gas in the exhaust manifold. If the airtightness of the exhaust manifold is not good, the exhaust gas will not only pollute the car body, but also reduce the exhaust gas of the vehicle. System life, more seriously, will cause pollution to the atmospheric environment. After the finished exhaust manifold is completed, it needs to pass the air tightness test. In the existing technology, the exhaust manifold can...

AI Technical Summary

Problems solved by technology

However, the former has the risk of radiation injury and requires higher professional quality of operators; the latter is affected by the fixed position and number of sealing devices, and a single device can generally only test the airtightness of exhaust manifolds of a series of cylinders. The flexibility is poor, and the specific leakage point cannot be accurately judged, which affects the use effect

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