Layered piston connecting rod assembly

A technology of piston connecting rod and connecting rod assembly, which is applied to pistons, engine components, machines/engines, etc., can solve the problems of low melting point of aluminum pistons, broken engines, and inability to share, achieve good thermal and mechanical properties, improve Speed ​​and precision, the effect of solving bottleneck problems

CN106438094AInactive Publication Date: 2017-02-22蒙国全
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2017-02-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a layered piston connecting rod assembly. The piston connecting rod assembly is formed by mounting a piston skirt connecting rod assembly (4), a lower scraper (9), a lining ring (10), an upper scraper (11), a lower piston head (12), a second gas ring (24), a middle piston head (25), a first gas ring (37) and an upper piston head (38) in a cylinder hole (48) of a cylinder body (47) in sequence. A middle piston skirt (3), a lower piston head body (13) and a middle piston head body (26) use aluminum alloys or aluminum base composite materials; and the upper piston head (38) uses a cast iron or cast steel material. The piston connecting rod assembly can realize full-automatic installation and cylinder entering by equipment and automatic control of opening directions of the piston gas rings and the scrapers, and still can keep lower weight under the precondition of excellent thermal and mechanical performances.
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Description

technical field

[0001] The invention relates to an engine component, in particular to a layered piston connecting rod assembly. Background technique

[0002] At present, the piston and connecting rod assembly on the engine is composed of main parts such as piston, connecting rod, piston pin, combined oil ring and gas ring, among which the piston is manufactured by complex processes such as machining and surface treatment after integral casting. Its structure is usually divided into two parts, the piston skirt and the piston head, in which the piston skirt is responsible for the hinge connection with the connecting rod and plays the role of power transmission; the piston head has a piston ring groove, a piston ring land and a piston top surface (including Combustion chamber) and other structures. The piston ring (including combined oil ring, second gas ring and first gas ring) is installed in the piston ring groove, and its displacement in the piston axial direction is restr...

Examples

Embodiment Construction

[0036]The embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0037] Such as figure 1 As shown, the piston skirt connecting rod assembly 4 is assembled by the connecting rod 1, the piston pin 2 and the piston skirt 3, the mechanical structure and installation process of the connecting rod 1 and the piston pin 2 still use the existing technology, and the inner wall of the piston skirt 5 It is a smooth cylindrical surface, which intersects with the piston skirt top surface 6 to form a figure 2 From the two "C"-shaped lines 7 shown symmetrical to the axis of the piston pin 2, it can be deduced that the inner wall 5 of the piston skirt is two "C"-shaped cylindrical surfaces.

[0038] Such as figure 2 As shown, the two...