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Sealing member

A technology for sealing parts and walls, which is applied in the direction of engine sealing, engine sealing device, engine components, etc., can solve the problems of reduced sealing function, large wear and large sliding loss of side seals.

Active Publication Date: 2019-07-05
EAGLE INDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the side seal with a large contact area and sliding speed not only has a large sliding loss, but also has a large wear caused by sliding, so the sealing function of the side seal is reduced, the pressure of the rotor during compression is reduced, and the air leakage is increased. The problem of reduced engine efficiency

Method used

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Examples

Experimental program
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Embodiment 1

[0039] combine Figure 1 to Figure 4 , the sealing member of the present invention will be described. In addition, in this embodiment, as the sealing member of the present invention, a side seal that seals between the side surface of the rotor for a rotary engine and the side casing will be described as an example.

[0040] exist figure 1 Among them, the rotary engine 1 has: a casing and a rotor 5 (rotary body of the present invention), wherein the casing is clamped from both axial sides by the rotor casing 2 having the inner peripheral wall 2a of the double-arc epicycloid curve shape The rotor case 2 is composed of a pair of side cases 3 (side walls of the present invention), and the rotor 5 is accommodated in the housing chamber 4 defined by the rotor case 2 and the side cases 3 and has a triangular shape. The rotary engine 1 It also has three working chambers 6 defined by the outer peripheral wall of the rotor 5 and the inner peripheral wall 2a of a cycloidal shape.

[...

Embodiment 2

[0061] Next, combine Figure 5 , Figure 6 The sealing member of Example 2 will be described. The difference between the side seal 11 of the second embodiment and the first embodiment is that the opening direction of the first lubricating mechanism and the opening direction of the second lubricating mechanism are respectively opposite to those of the first embodiment. In addition, the same code|symbol is used for the structure which overlaps with the above-mentioned embodiment, and description is abbreviate|omitted here.

[0062] The side seal 11 of the second embodiment includes: a first lubricating mechanism 31 provided at the central portion in the longitudinal direction of the side seal 11 toward the lagging side s1 in the rotational direction; In the second lubricating mechanism 32 provided on the advancing side s2 , the first lubricating mechanism 31 has an opening 31 e that opens radially inward, and the second lubricating mechanism 32 has an opening 32 e that opens r...

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Abstract

Provided is a sealing member having increased sealing performance obtained by reducing loss caused by sliding between a side housing and a side seal which is provided to a side surface of a rotating body rotating inside a housing while moving around the inside of the housing. This sealing member 11 is provided between a rotating body 5 rotating inside a containing chamber 4 while moving around theinside of the containing chamber 4, and a sidewall 3 of the containing chamber 4, the containing chamber 4 being defined by a housing, and the sealing member 11 has a sliding surface S sliding on thesidewall 3. The sliding surface S is provided with: a first lubrication mechanism 21 disposed on one side in the longitudinal direction; and a second lubrication mechanism 21 disposed on the other side in the longitudinal direction and providing lubrication performance in a sliding direction different from that of the first sliding mechanism 21.

Description

technical field [0001] The present invention relates to a sealing member for sealing the side surface of a rotating body that rotates while swinging, such as a rotor for a rotary engine or a rotary compressor. Background technique [0002] In a rotary engine, a substantially triangular-shaped rotor is accommodated in a rotor housing chamber composed of a rotor case and a side case, and three working chambers are formed between the triangular-shaped rotor and the rotor case, and the rotor is positioned relative to the eccentric shaft. The eccentric is supported rotatably. In addition, the rotor is provided with a radial seal installed at each vertex of the triangular-shaped rotor and used to maintain the airtightness of the three working chambers, installed at each side of the side of the triangular-shaped rotor and used to hold the rotor and the side machine. The airtight side seals between the shells, the corner seals installed at the joints of the radial seals and the sid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01C19/08F01C1/22F01C21/04F01M1/06F02B53/00F02B55/02F16J15/16
CPCF01C1/22F01C19/08F01C21/04F01M1/06F02B53/00F02B55/02F16J15/16Y02T10/12F05D2240/55
Inventor 德永雄一郎板谷壮敏吉野显
Owner EAGLE INDS
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