A test device for continuous adjustment of engine valve timing
A technology of engine valves and test devices, which is applied in the direction of engine testing, machine/structural component testing, measuring devices, etc. It can solve the problems that the valve timing cannot be continuously variable and the cost is high, so as to shorten the test period and reduce the cost , the effect of high test accuracy
Active Publication Date: 2015-11-18
CHONGQING CHANGAN AUTOMOBILE CO LTD
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Problems solved by technology
The determination of the position of the camshaft phase requires a large number of experimental verifications. In the absence of a variable valve timing system or the initial phase cannot be determined, the method of replacing the camshaft or timing jumping is usually used to adjust the valve timing. However, this method can only change a fixed angle, and cannot achieve continuous variable valve timing. Moreover, the method of changing the camshaft or timing jumping to adjust the valve timing requires additional processing of camshafts or timing gears with different phases. Tooth skipping, higher cost
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[0019] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0020] like Figure 1 to Figure 4 As shown, a test device for continuous adjustment of engine valve timing includes a phase adjustment part 1 fixedly connected with the camshaft, and a rotary drive part 2 detachably connected with the phase adjustment part 1, and the phase adjustment part 1 Comprising a dial 10 and a mandrel 19, the dial 10 includes a large end face 15 parallel to each other, a small end face 16 and a connecting surface 17 connecting the large and small end faces 15, 16, and a connecting surface 17 connected to the mandrel 19 is provided on the small end face 16. Concentric cylindrical boss 18, the cylindrical boss 18 is vertically connected with the small end surface 16, the part where the connecting surface 17 m...
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The invention discloses a test device used for engine valve timing continuous adjustment. The test device comprises a phase adjustment component fixedly connected with a cam shaft and a rotary drive component detachably connected with the phase adjustment component. When the test device is used, engine valve timing can be conveniently adjusted, test type selection and scheme verification of different valve timings can be carried out, a test cycle can be shortened, and the test device has the advantages of being easy and convenient to operate, high in precision and low in cost.
Description
technical field [0001] The invention belongs to the field of engine testing, and in particular relates to a valve timing adjustment test device. Background technique [0002] In the process of engine development, it is necessary to select the most reasonable valve timing of the engine to achieve the best engine performance. The determination of the position of the camshaft phase requires a large number of experimental verifications. In the absence of a variable valve timing system or the initial phase cannot be determined, the method of replacing the camshaft or timing jumping is usually used to adjust the valve timing. However, this method can only change a fixed angle, and cannot achieve continuous variable valve timing. Moreover, the method of changing the camshaft or timing jumping to adjust the valve timing requires additional processing of camshafts or timing gears with different phases. Tooth skipping, the cost is higher. Contents of the invention [0003] The inv...
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IPC IPC(8): G01M15/00
Inventor 姜波徐凯潘小亮余迎龙田英鑫
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD