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Bearing for engine and engine having same

A technology for an engine and a bearing bush, applied in the field of the engine, can solve the problems of not being able to adapt to the bending deformation of the crankshaft, the local stress of the bearing bush is large, and the service life of the bearing bush is reduced, and the effects of small local stress, uniform force and long service life are achieved.

Inactive Publication Date: 2019-04-16
BEIJING BORGWARD AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing bearing bushes (with equal thickness in the axial direction) cannot adapt to the bending deformation of the crankshaft
When the journal is bent and deformed, the existing bearing pads cannot adapt to the bent and deformed journal, and the bearing area of ​​the existing bearing pads is low, resulting in excessive local stress on the bearing pads, uneven force, reduced bearing pad life, and premature failure. risk

Method used

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  • Bearing for engine and engine having same
  • Bearing for engine and engine having same
  • Bearing for engine and engine having same

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Embodiment Construction

[0022] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0023] An engine according to an embodiment of the present invention will be described below with reference to the drawings. Such as Figure 1-Figure 4 As shown, the engine according to the embodiment of the present invention includes a bearing shell 10 , a boss 20 and a crankshaft 30 .

[0024] The bearing bush 10 is arc-shaped. The boss 20 is arranged on the supporting surface 1011 of the bearing bush 10, and the boss 20 is located between the first end 10111 and the second end 10112 of the supporting surface 1011 of the bearing bush 10, and the first end 10111 and the second end 10112 are respectively the At both ends of the bearing bush 10 along the circum...

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Abstract

The invention discloses a bearing bush used for an engine and the engine therewith. The bearing bush includes: an arc-shaped body; and a boss arranged on a support surface of the body, positioned between a first end and a second end of the support surface of the body and extended from the circumference of the body. The bearing bush is large in bearing surface, is uniform in stress, is less in local stress, is high in bearing capacity and is long in service life.

Description

technical field [0001] The invention relates to a bearing shell for an engine, and also to said engine having said bearing shell. Background technique [0002] The existing engine has the defect of short service life. Contents of the invention [0003] The application is made based on the inventor's discovery and recognition of the following facts and problems: the existing engine is limited by quality, structure and energy saving (reducing friction loss), and the crankshaft cannot improve the crankshaft by thickening the journal. bending stiffness. When the crankshaft is working, the journal of the crankshaft will be bent and deformed under the action of explosion pressure and inertial force, especially when the engine outputs high torque, the bending deformation of the journal is the largest. The existing bearing bushes (with equal thickness in the axial direction) cannot adapt to the bending deformation of the crankshaft. When the journal is bent and deformed, the ex...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16C33/04F16C33/10F16C9/02
CPCF16C23/041
Inventor 王海龙刁金柱宋和滨
Owner BEIJING BORGWARD AUTOMOBILE CO LTD