Expansion water tank
An expansion tank and water tank technology, which is applied in the cooling of engine components, machines/engines, and engines, can solve the problems of small contact area between the mounting seat and the expansion tank, complex and bulky structure of the expansion tank, water leakage and service life of the expansion tank, etc., to achieve The effect of increasing the modal frequency, preventing resonance, and increasing the rigidity of the structure
Inactive Publication Date: 2016-08-03
WEICHAI POWER CO LTD
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Problems solved by technology
[0004] The problems in the prior art are: the small contact area between the mounting seat and the expansion tank leads to stress concentration at the contact position; and along the direction from the intake side to the exhaust side of the diesel engine, the mounting bracket cannot provide sufficient rigidity to the expansion tank; in addition , and because the speed of the diesel engine is relatively high, in the direction from the intake side to the exhaust side, once the highest frequency excited by the diesel engine is higher than the natural frequency of the expansion tank, there is a risk of resonance in the expansion tank, resulting in expansion The water tank is leaking and the service life is greatly reduced
[0005] On the basis of the above problems, if other auxiliary brackets are added, the structure of the expansion tank will inevitably be complicated and bulky, and the cost will increase
Method used
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Embodiment Construction
[0027] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0028] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. ...
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The invention relates to the technical field of expansion water tanks and provides an expansion water tank. The expansion water tank comprises a water tank body and a mounting support. A bottom plate of the water tank body is fixed to the mounting support through mounting bases. A supporting plate is attached to the outer side of the bottom plate. One side of each mounting base is fixed to the supporting plate. The other side of each mounting base is fixed to the mounting support. According to the scheme, stress distribution on the bottom plate of the expansion water tank can be improved by additionally arranging the supporting plate, and the overall structural rigidity of the expansion water tank is improved. The first-order modal frequency of the expansion water tank from the air inlet side of an engine to the exhaust side of the engine is greatly increased, resonance caused by the maximum frequency excited by the engine during operation is avoided, and water leakage and shortening of the service life are avoided.
Description
technical field [0001] The invention relates to the technical field of expansion tanks, in particular to an expansion tank for engines. Background technique [0002] Taking a diesel engine as an example, its expansion tank includes a water tank body and a mounting bracket for fixing the water tank body. The expansion tank weighs 9.9kg without coolant, and 19.9kg with coolant added. See figure 1 , the arrangement of the expansion tank is designed on the exhaust side of the diesel engine ( figure 1 middle left). [0003] See figure 2 , The body of the water tank is supported by the mounting bracket installed on the upper part of the exhaust pipe of the diesel engine, and there is no other supporting structure. Further, an installation seat is fixed on the bottom plate of the water tank body, and the installation seat is fixedly connected to the installation bracket by bolts. On this basis, the mounting bracket is fixed to the diesel engine by bolts. In addition, a retu...
Claims
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IPC IPC(8): F01P11/02
CPCF01P11/029
Inventor 董晓彬常会楷王慧辉
Owner WEICHAI POWER CO LTD