CN100476187C

CN100476187C - Piston ring for automatically closing and adjusting clearance

Info

Publication number: CN100476187C
Application number: CNB2003101105623A
Authority: CN
Inventors: 张有汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-11-26
Filing date: 2003-11-26
Publication date: 2009-04-08
Anticipated expiration: 2023-11-26
Also published as: CN1544805A

Abstract

The invention discloses a Cr plating hanger of inner holes of cylinder sleeve, composed of anode, cathode guide rod, anode insulating sleeve, primary guide ring, and clamp ring and screw of cylinder sleeve, where the anode insulating sleeve is set with top power line shield cap, the bottom end of the anode is set with bottom power line shield disc, the anode is set with holes, the outer diameter at the bottom end of the anode is less than that on the top, there is an anode positive sleeve fixed with the cathode outside the top of the anode, there is a gas roundabout cavity formed between the top power line shield cap and the primary guide ring. It has the characters of fixed position of cathode and anode, high plating efficiency, accurate positioning cylinder sleeve, a little deformation, etc.

Description

The piston ring in gap is regulated in a kind of automatic sealing

Technical field

The present invention relates to be used for the piston ring of cylinder of internal-combustion engine, further be meant the end opening structure of piston ring.

Background technique

In the prior art, place the interior piston ring of piston ring groove to have the gas leakage problem of three aspects, i.e. sideshake up and down in the wall crack of the gas leakage of ring opening end gap, piston ring and the casing wall of straight cut shape gas leakage, the piston ring groove leaks gas always.These gas leakage caused engine fuel burning insufficient, reduce and exert oneself, shorten the motor consequence in working life.

Summary of the invention

The technical problem to be solved in the present invention is, defective at the prior art existence, design a kind of automatic sealing and regulate the piston ring in gap, two identical piston rings are superimposed to be placed in the same annular groove of piston, can effectively prevent described gas leakage, thereby make the power output that oil inflame is abundant, improve motor, overcome the infringement that prior art is leaked gas and caused to motor.

Technical solution of the present invention is, the piston ring that the gap is regulated in described automatic sealing has the ring body of band opening, the opposite ends face of described ring body opening is the plane, described end face becomes 30 ° of-60 ° of angles with a surface of ring body, its technical characteristics is that described end face becomes 30 ° of-60 ° of angles with the ring body cylindrical tangent line that intersects with this end face.

Below make and further specifying.

Referring to Fig. 1, the present invention has the ring body 1 of band opening 2, the opposite ends face 3,4 of described ring body opening 2 is the plane, described end face 3,4 becomes 30 ° of-60 ° of angles (be β among Fig. 2=30 °-60 °) with a surface (upper surface 5 or lower surface 6) of ring body 1, its technical characteristics is, described end face 3 or 4 and with this end face 3 or the 4 ring body cylindrical tangent line b that intersect ₁Or b ₂Become 30 ° of-60 ° of angles (be among Fig. 3 angle α=30 °-60 °).

Design principle of the present invention is (referring to Fig. 4), and during actual the use, two rings (being upper film loop 7 shown in Figure 4 and lower film loop 8) is superimposed to be placed in the same annular groove of piston, the piston ring of forming a groove two rings, the opening of two rings overlaps, and similarly is the shape that fish stings tail, realizes sealing automatically.When one groove two rings moved up and down in cylinder, when top dead center moved, the following sideshake of piston ring was opened from lower dead center, the effect of lower film loop 8 back clearance air-flow and back pressure in being subjected to and moving clockwise; When lower dead center was moved, opened by the last sideshake of piston ring groove by top dead center for piston ring, the effect of upper film loop 7 back clearance air-flow and back pressure in being subjected to and clockwise rotating; Thereby realized the automatic sealing of opening end gap.On the other hand, when the piston ring of single linkage type piston moves up and down in cylinder barrel, connecting rod and piston ring produce banking motion, are that a groove one ring and chain rate are thicker because prior art adopts, are subjected to the restriction of sideshake up and down and cause the interior wearing and tearing of piston ring and casing wall eccentric wear, make piston ring the right and left that cylinder barrel is worn into ellipse like this, piston ring is worn into taper, and piston ring diminishes by mill, and cylinder barrel is subjected to mill to become big, cause the opening end gap of piston ring constantly to increase, cause air leakage increasing; The present invention is the structure of a groove two loops, can regulate mutually when moving up and down in cylinder, has kept ring to contact with the tight of casing wall, has overcome the sort of eccentric wear phenomenon between ring and the casing wall, thereby has solved the wall crack gas leak phenomenon of ring and casing wall.Moreover, the excessive phenomenon that has caused gas leakage, leaked gentle string oil of the sideshake of traditional product; The invention solves the wall crack of gap-clearance of piston rings end gap, ring and casing wall and the gas leakage of the sideshake up and down problem of piston ring, the sideshake up and down of conventional piston ring is about 1.5mm in practice, the piston ring of external import sideshake up and down is about 0.8～1.0mm, and the sideshake of ring of the present invention is about 0.4～0.6mm; Simultaneously, the thermal energy that has solved the firing chamber does not basically seal in the crankcase, and the machine oil of crankcase is not gone here and there in the firing chamber yet, has kept the good lubrication of machine oil like this.

As known from the above, the present invention is the piston ring that the gap is regulated in a kind of automatic sealing, and its technique effect has:

1. the invention solves wall crack and the annular groove interior sideshake up and down gas leakage and the eccentric wear phenomenon of opening end gap, ring and the casing wall of piston ring, fuel oil is fully burnt, air leakage has reduced 48%; 2～3 times of working lifes of motor have been prolonged; The compression pressure that has improved motor is than about 4%; Improved cylinder pressure 8%; Improved the moment of torsion 5.5% of motor; Improved power 5.4%; Saved fuel oil about about 8%;

Reduced the loss of machine oil; Having prolonged the working life of machine oil, solved the environmental pollution that exhaust emissions caused, mainly is that CO has reduced by 18% than original new car emission standard, and hc has reduced 30ppm..Reached European emission standard.

2. reduce in-engine heel and toe wear, corrosive wear, abrasive wear, the wearing and tearing of molten amount, thereby solved some phenomenons such as low, the excessive oil consumption of weak point, bad mechanical property, economic performance in motor working life.

3. piston ring applied range of the present invention, no matter high power engine still is a low-powered engine all can be used; Simultaneously, under the prerequisite that does not change piston ring groove, various motors can both be installed and used.

Description of drawings

Fig. 1 is a kind of embodiment's perspective view;

Fig. 2 be among Fig. 1 A to (part) structural representation;

Fig. 3 is the plan structure (a among the figure of piston ring shown in Figure 1 ₁, a ₂Be diameter elongation line, b ₁, b ₂Be tangent line);

Fig. 4 is two superimposed behaviour in service figure of piston ring.

In the drawings:

The 1-ring body, the 2-opening,

3,4-end face, the 5-upper surface,

The 6-lower surface, the 7-upper film loop,

The 8-lower film loop.

Embodiment

Referring to Fig. 1 to Fig. 4, angle α=β=45 °, all the other parameters are made with reference to the prior art piston ring, and every loop is half of prior art ring plate thickness.

Claims

1. one kind is sealed the piston ring of regulating the gap automatically, the ring body of band opening is arranged, and the opposite ends face of described ring body opening is the plane, and described end face becomes 30 ° of-60 ° of angles with a surface of ring body, it is characterized in that described end face becomes 30 ° of-60 ° of angles with the ring body cylindrical tangent line that intersects with this end face.