Expansion compressor apparatus and air conditioner having the same

Patent metadata

Field	Value
Publication number	US-10151513-B2
Application number	US-201415032984-A
Country	US
Kind code	B2
Filing date	Jul 8, 2014
Priority date	Oct 28, 2013
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

Abstract

The invention discloses an expansion compressor apparatus and an air conditioner having the same, wherein the expansion compressor apparatus includes: an expansion cylinder, a compression cylinder, and a connecting shaft, an expansion cylinder air suction passage communicated with an air suction cavity of the expansion cylinder being provided on the expansion cylinder, the expansion compressor apparatus further includes: a control cylinder, the control cylinder being provided with a control cylinder air suction passage and a control cylinder air exhaust passage, both the control cylinder air suction passage and the control cylinder air exhaust passage being provided in a radial direction of the control cylinder, and a communication passage being provided between the control cylinder air exhaust passage and the expansion cylinder air suction passage. The apparatus effectively solves the problem in the prior art that a high-pressure fluid exerts an impact force in an axial direction on a fan-shaped cam.

First claim

The invention claimed is:

1. An expansion compressor apparatus, comprising: an expansion cylinder ( 10 ), a compression cylinder ( 20 ), and a connecting shaft ( 30 ) connecting the expansion cylinder ( 10 ) and the compression cylinder ( 20 ),
an expansion cylinder air suction passage ( 11 ) communicated with an air suction cavity of the expansion cylinder ( 10 ) being provided on the expansion cylinder ( 10 ), and the expansion cylinder air suction passage ( 11 ) being provided in a radial direction of the expansion cylinder ( 10 );
the expansion compressor apparatus further comprising:
a control cylinder ( 40 ), the connecting shaft ( 30 ) passes through the control cylinder ( 40 ), and is provided in the control cylinder ( 40 ), the control cylinder ( 40 ) being provided with a control cylinder air suction passage ( 41 ) and a control cylinder air exhaust passage ( 42 ), both the control cylinder air suction passage ( 41 ) and the control cylinder air exhaust passage ( 42 ) being provided in a radial direction of the control cylinder ( 40 ), and a communication passage being provided between the control cylinder air exhaust passage ( 42 ) and the expansion cylinder air suction passage ( 11 ),
wherein the control cylinder ( 40 ) further comprises a concentric piston ( 43 ) coaxial with the connecting shaft ( 30 ), the control cylinder ( 40 ) is provided with a second inner hole, the concentric piston ( 43 ) is provided rotatably in the second inner hole, and the communication groove is formed in the concentric piston ( 43 ), a clearance between an outer diameter of the concentric piston ( 43 ) and an inner diameter of the second inner hole of the control cylinder ( 40 ) is within a range of 0 to 0.1 mm;
a communication groove being provided at a position, corresponding to the control cylinder ( 40 ), on the connecting shaft ( 30 ), and the communication groove rotating along with the connecting shaft ( 30 ) to enable the control cylinder air suction passage ( 41 ) and the control cylinder air exhaust passage ( 42 ) to be communicated or separated.

2. The expansion compressor apparatus according to claim 1 , wherein
the expansion cylinder ( 10 ) further comprises an expansion roller ( 12 ), the expansion roller ( 12 ) is provided on an expansion eccentric portion ( 32 ) of the connecting shaft ( 30 ) in a sleeving manner, the expansion cylinder ( 10 ) is provided with a first inner hole, the expansion roller ( 12 ) eccentrically rotates in the first inner hole, an expansion cylinder air exhaust passage ( 13 ) communicated with an air exhaust cavity of the expansion cylinder ( 10 ) is provided on the expansion cylinder ( 10 ) and is provided in the radial direction of the expansion cylinder ( 10 ), a sliding slot ( 14 ) extending in the radial direction of the expansion cylinder ( 10 ) is provided between the expansion cylinder air suction passage ( 11 ) and the expansion cylinder air exhaust passage ( 13 ), an expansion sliding sheet ( 15 ) is provided in the sliding slot ( 14 ) and abuts against the expansion roller ( 12 ), and the air suction cavity of the expansion cylinder ( 10 ) and the air exhaust cavity of the expansion cylinder ( 10 ) are formed between the first inner hole and the expansion roller ( 12 ).

3. The expansion compressor apparatus according to claim 2 , wherein
an included angle between one side, in a width direction, of the expansion cylinder air suction passage ( 11 ) and a length direction of the expansion sliding sheet ( 15 ) is an expansion cylinder air suction front-edge angle β, and an included angle between the other side, in the width direction, of the expansion cylinder air suction passage ( 11 ) and the length direction of the expansion sliding sheet ( 15 ) is an expansion cylinder air suction rear-edge angle α;
an included angle between one side, in a width direction, of the expansion cylinder air exhaust passage ( 13 ) and the length direction of the expansion sliding sheet ( 15 ) is an expansion cylinder air exhaust front-edge angle Φ, and an included angle between the other side, in the width direction, of the expansion cylinder air exhaust passage ( 13 ) and the length direction of the expansion sliding sheet ( 15 ) is an expansion cylinder air exhaust rear-edge angle γ;
an included angle between one side, away from the control cylinder air exhaust passage ( 42 ) in a clockwise direction, of the control cylinder air suction passage ( 41 ) and a central line of the expansion eccentric portion ( 32 ) is δ; and
the expansion cylinder air suction front-edge angle β, the expansion cylinder air suction rear-edge angle α, the expansion cylinder air exhaust front-edge angle Φ, the expansion cylinder air exhaust rear-edge angle γ and the included angle δ satisfy at least one of the following relations:
β>α;

γ>Φ; and

−90°≤δ≤90°.

4. The expansion compressor apparatus according to claim 1 , wherein the clearance between the concentric piston ( 43 ) and the second inner hole of the control cylinder ( 40 ) is sealed by an oil film.

5. The expansion compressor apparatus according to claim 1 , wherein the control cylinder ( 40 ) is provided on one side, away from the compression cylinder ( 20 ), of the expansion cylinder ( 10 ).

6. The expansion compressor apparatus according to claim 3 , wherein the communication groove is an arc-shaped groove ( 31 ) extending in a circumferential direction of the connecting shaft ( 30 ).

7. The expansion compressor apparatus according to claim 6 , wherein a radian angle formed by the arc-shaped groove ( 31 ) is θ, θ being within a range of 0° to 360°−γ.

8. An air conditioner, having an expansion compressor apparatus, wherein the expansion compressor apparatus is an expansion compressor apparatus according to claim 1 .

9. An air conditioner, having an expansion compressor apparatus, wherein the expansion compressor apparatus is an expansion compressor apparatus according to claim 2 .

10. An air conditioner, having an expansion compressor apparatus, wherein the expansion compressor apparatus is an expansion compressor apparatus according to claim 3 .

11. An air conditioner, having an expansion compressor apparatus, wherein the expansion compressor apparatus is an expansion compressor apparatus according to claim 4 .

12. An air conditioner, having an expansion compressor apparatus, wherein the expansion compressor apparatus is an expansion compressor apparatus according to claim 5 .

13. An air conditioner, having an expansion compressor apparatus, wherein the expansion compressor apparatus is an expansion compressor apparatus according to claim 6 .

14. An air conditioner, having an expansion compressor apparatus, wherein the expansion compressor apparatus is an expansion compressor apparatus according to claim 7 .

Assignees

• Gree Green Refrigeration Tech Ct Co Ltd Zhuhai

Inventors

• Liang Zhili
• Hu Yusheng
• Xu Jia
• Ren Liping

Classifications

• F04C23/003 Primary

  having complementary function · CPC title

• F04C18/3564

  the surfaces of the inner and outer member, forming the working space, being surfaces of revolution · CPC title

• F04C29/0021

  Systems for the equilibration of forces acting on the pump (interstice adjustment other than by fluid pressure F01C21/102) · CPC title

• F01C1/30

  having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members · CPC title

• F04C23/02

  Pumps characterised by combination with, or adaptation to, specific driving engines or motors · CPC title