A positioning bypass structure to prevent sticking
An anti-jamming and positioning rotation technology is applied in the field of anti-jamming positioning bypass structures, which can solve the problems of easy-jamming of the bypass structure at the turbine end, and achieve the effects of universality, easy implementation and reasonable design.
Active Publication Date: 2018-04-06
CHINA NORTH ENGINE INST TIANJIN
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Problems solved by technology
[0005] In view of this, the present invention aims to propose an anti-seizure positioning bypass structure to solve the problem that the turbine end bypass structure is easy to be stuck
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[0019] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0020] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0021] An anti-seize positioning bypass structure, such as figure 1 As shown, it includes the lower valve seat 1, the central butterfly valve sleeve plug 2, the central butterfly valve 3, the positioning rotating ring 4, the limit rotating ring 5, the upper valve seat 6 and the central butterfly valve sleeve 7, and the short shaft end of the central butterfly valve 3 is installed In the central hole of the central butterfly valve sleeve 2, the long axis end of the central butterfly valve 3 passes through the central hole of the central butterfly valve sleeve 7; both sides of the central butterfly valve sleeve 2 and the central butterfly valve sleeve 7 are provided with shaft The front e...
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The invention provides an anti-blocking positioning bypass structure. The bypass structure comprises a lower valve seat, a center butterfly valve sleeve plug, a center butterfly valve, locating rotation rings, limiting rotation rings, an upper valve seat and a center butterfly valve sleeve. The short axis end of the center butterfly valve is mounted in a center hole of the center butterfly valve sleeve plug. The long axis end of the center butterfly valve penetrates through a center hole of the center butterfly valve sleeve. The two side faces of the center butterfly valve sleeve plug and the two side faces of the center butterfly valve sleeve are all provided with front cylindrical faces close to the axis. The upper valve seat and the lower valve seat are mounted on the two side faces of the center butterfly valve sleeve plug and the two side faces of the center butterfly valve sleeve correspondingly. The locating rotation rings and the limiting rotation rings are sequentially arranged between the front cylindrical faces of the two sides of the center butterfly valve sleeve plug and the center butterfly valve sleeve and the upper valve seat and between the front cylindrical faces of the two sides of the center butterfly valve sleeve plug and the center butterfly valve sleeve and the lower valve seat correspondingly. The end of the upper valve seat and the end of the lower valve seat are fixed together through bolts. Compared with the prior art, the anti-blocking positioning bypass structure has the following advantages that the problem that center butterfly valves are blocked can be well solved, and universality can be realized by means of the modular design concept.
Description
technical field [0001] The invention belongs to the technical field of turbochargers, and in particular relates to an anti-blocking positioning bypass structure. Background technique [0002] In recent years, with the increase of the boost pressure ratio required by the diesel engine and the increase of the speed span of the diesel engine, the current conventional single-stage boost has been difficult to fully meet. Because the conventional single-stage supercharging will greatly reduce the compressor efficiency when the pressure ratio is increased, and the flow range will be narrowed sharply, which cannot fully take into account the high and low speed conditions of the vehicle; at the same time, the conventional single-stage supercharging must increase the pressure ratio significantly. To increase the speed of the supercharger, due to the limitation of the supercharger impeller structure, material properties, processing technology and other factors, there are certain proble...
Claims
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IPC IPC(8): F02B37/12
CPCF02B37/12Y02T10/12
Inventor 徐思友吴新涛杨磊张俊跃胡力峰王晓滕
Owner CHINA NORTH ENGINE INST TIANJIN