CN2260173Y

CN2260173Y - Piston element with automatic lubricating and clearance adjusting device

Info

Publication number: CN2260173Y
Application number: CN96202857U
Authority: CN
Inventors: 王保东; 蔡平; 薛传思; 蔡晓山
Original assignee: 王保东; 蔡平
Current assignee: Henan Xinfu Piston Ring Co. Ltd.
Priority date: 1996-02-14
Filing date: 1996-02-14
Publication date: 1997-08-20
Anticipated expiration: 2006-02-14
Also published as: WO1997030277A1; AU5495396A

Abstract

The utility model relates to a piston element with an automatic lubricating and clearance adjusting device. The piston is only provided with two piston rings, which are a combined gas ring and a combined oil ring. Because the combined gas ring is formed by matching of a positive ring and a subsidiary ring, the matching is with the bevel face smooth, an oil storage groove is arranged, and the combined gas ring plays the self-regulated gap and lubrication functions. Likewise the combined oil ring is composed of an auxiliary gas ring and a main oil ring, and the structure is same to the combined gas ring. Because the piston element is only provided with two piston rings, the air-tightness can be improved, the whole weight can be lightened, the friction resistance and the inertial resistance can be reduced, the output power of the engine can be enhanced, and the oil consumption, the noise and the exhaust pollution can be lowered.

Description

A kind of piston assembly that has self oiling and gap adjusting device

The utility model is about the piston assembly part on explosive motor, the air compressor, particularly relates to a kind of piston assembly that has self oiling and gap adjusting device.

The utility model is that I apply for that on January 19th, 92 (application number: improvement 95222416.X) is applied for again in " self-lubricated and-adjusted piston ring " of application on September 27th, 95 for " automatic gap adjusting compression ring on the internal combustion engine " (application number 91200733.8) and I, though in my application, solved between piston ring and the cylinder wall and piston body and piston ring between the problems such as vibration gas leakage, opening gas leakage, sideshake gas leakage that exist, but greasy property is not good enough, surface friction drag is big, and self power consumpiton is big.Though in my second part of application, solved the lubrication problem that exists in first part of application, make piston, prolong the working life of piston ring significantly, but still do not break through traditional concept, remain on each piston assembly or two to three road compression rings, one oil ring, (totally three to four road rings), owing on each piston assembly two to three road compression rings are arranged, one oil ring, in fact this exist three to four fastnesses (each road ring is a fastness) between piston ring and cylinder wall, kinetic friction resistance in the time of certainly will will increasing the piston acting like this, because piston ring is many, the weight of piston assembly also increases, and the inertial resistance that piston moves in cylinder also increases, thereby cause the motor oneself power consumption big, reduced the gross output of motor.

The purpose of this utility model is to solve the problem that surface friction drag is big, inertial resistance is big that exists in the existing piston assembly, a kind of piston assembly with self oiling gap adjusting device that has only one compression ring, one oil ring in piston assembly is provided, the oneself power consumption that is caused with the surface friction drag that reduces its piston and inertial resistance, improve engine power output, reduce exhaust pollution and noise.

Technical solution of the present utility model is by piston only (1), compression ring (3), (4), (5) and oil ring (2) form, it is characterized in that on piston only (1), having only the twice piston ring groove, in the piston ring groove of piston head, dispose by just encircling (4) and paying the Combined gaseous ring that ring (5) matches, in the piston groove of piston bottom, dispose the combined oil ring that matches with main oil ring (2) by auxiliary compression ring (3), just ring (4) in the compression of piston is between ring (5) and the auxiliary compression ring (3) in the oil ring groove of piston and the main oil ring (2) that smooth inclined-plane cooperates and can slide relative with paying, it is trapezoidal that the shape of cross section that is assemblied in each piston ring on the piston only (1) can be unfilled corner, rectangular or polygonal constitute the oil storage annular groove (6) that stores lubricant oil in the unfilled corner edge section of two piston rings that cooperatively interact.

Piston assembly of the present utility model, owing to have only the twice piston ring, i.e. one Combined gaseous ring, one combined oil ring, this has been just than having reduced by one to two road piston ring at least in the existing engine piston assembly, thereby has reduced by two fastnesses, significantly reduced friction power loss, same owing to reduced piston ring, make the weight saving of piston assembly, the inertial resistance of the reciprocating motion of the pistons that also reduces, improve the effect of motor, reduced exhaust emission and noise.Owing to adopted self oiling and transferred the Combined gaseous ring and the combined oil ring in crack, though have only bipassage ring on the whole piston assembly, but through checking the cylinder pressure and carrying out motor operation stand test, the tightness of its piston doubles than the air-tightness of existing four road rings, and engine consumption is reduced, prolong the working life of piston ring greatly.

Below be to brief description of drawings

Fig. 1 has the structural drawing of the piston assembly of self oiling and gap adjusting device for the utility model.

Fig. 2 is the Combined gaseous ring structural drawing on the utility model piston assembly.

Fig. 3 is an A-A sectional drawing among Fig. 2.

Fig. 4 is the combined oil ring structural drawing in the utility model piston assembly.

Fig. 5 is a B-B sectional drawing among Fig. 4.

Fig. 6 a, b, c are the sectional view that oil groove is moistened in storage that the sectional shape of Combined gaseous ring is respectively U-shaped, V-arrangement and γ shape.

Fig. 7 a, b, c are that the sectional shape of Combined gaseous ring is rectangular and polygonal, and external frame is the sectional view of curve.

That Fig. 8 a, b, c are respectively is trapezoidal, polygonal, external frame are the sectional view of curved combined oil ring.

Describe examples of implementation of the present utility model in detail below in conjunction with accompanying drawing.

By adopting the designed piston assembly of the utility model to be made up of piston only (1), compression ring (3), (4), (5) and oil ring (2) on China's 1105 types series internal-combustion engine, piston assembly of the present utility model has only bipassage ring in Fig. 1.1. be Combined gaseous ring on piston top, be to combine by just encircling (4) and paying ring (5), just encircling (4) adopts smooth bevel to cooperate the automatic gap adjusting effect of playing with a pair ring (5), increase the tightness of this Combined gaseous ring, be provided with the unfilled corner annular groove with paying ring (5) with the cylinder sleeve contact segment just encircling (4), play self-lubricating function thereby form the annular groove (6) that stores lubricant oil.2. being combined oil ring in the piston bottom, is to be made of auxiliary compression ring (3) and main oil ring (2), also adopts smooth bevel to join between auxiliary compression ring and the main oil ring and is associated with unfilled corner annular groove (6) and formation automatic gap adjusting and lubricated effect.The shape that works the annular groove (6) that stores lubricant oil in combinations thereof compression ring and combined oil ring can be U-shaped, V-arrangement or γ shape, and (as shown in Fig. 6,7,8) can be optional according to different motors.The shape of cross section of same each ring can be designed to trapezoidal, the rectangular or the polygonal of unfilled corner, and its external frame can be designed to curvilinerar figure.

Adopt the designed piston assembly of the utility model, be equipped with combination gas, the oil ring that can reach automatic gap adjusting and lubricating function because of this piston assembly, so whole piston assembly has only bipassage ring can reach than the better effect of existing piston assembly tightness, because piston ring reduces, overall weight alleviates, and its surface friction drag and inertial resistance all reduce, make the power character of whole motor, the Economy oil consumption all exceeds existing product, has also reduced the exhaust emission and the operating noise of motor simultaneously.

In sum, at the protection domain that does not exceed this specification and claim, it is fully possible that those skilled in the art can make multiple improvement.

Claims

1, a kind of piston assembly that has self oiling and gap adjusting device, be by piston only (1), compression ring (3), (4), (5) and oil ring (2) form, of the present utility model being characterised in that on above-mentioned piston only (1) has only the twice piston ring groove, in the piston ring groove of piston head, dispose by just encircling (4) and paying the Combined gaseous ring that ring (5) matches, in the piston ring groove of piston bottom, dispose the combined oil ring that matches with main oil ring (2) by auxiliary compression ring (3), just ring (4) in the piston gas ring groove and a pair ring (5), and be smooth inclined-plane between the auxiliary compression ring (3) in oil ring groove and the main oil ring (2) and cooperate, and can slide relative, the shape of cross section that is assemblied in each piston ring on the piston only (1) can be unfilled corner trapezoidal or rectangular or polygonal, constitutes the oil storage annular groove (6) that stores lubricant oil in the unfilled corner edge section of two piston rings that cooperatively interact.