Global patent index - EP 0874156 A3

EP 0874156 A3 2000-08-02 - Reciprocating compressor

Title (en)

Reciprocating compressor

Title (de)

Verdrängerverdichter

Title (fr)

Compresseur à déplacement alternatif

Publication

EP 0874156 A3 (EN)

Application

EP 98303118 A

Priority

JP 11885597 A

Abstract (en)

[origin: EP0874156A2] A reciprocating compressor comprises a cylinder block (1,2) having a plurality of compression chambers (21,22) formed therein and on at least one of opposite ends of respective pistons (12) slidably received within respective cylinder bores (11). A cylinder head (4,6) is secured to the cylinder block (1,2) and has a high-pressure chamber (24) and a low-pressure chamber (23) formed therein. A separating member is arranged between the cylinder block (1,2) and the cylinder head (4,6) and has a valve sheet (27,28), a valve plate (3,5) and a stopper plate (29,30). The valve sheet (27,28) is formed with suction valves (27d,28d) and discharge valves (27a,28a). The valve plate (3,5) is arranged between the valve sheet (27,28) and the cylinder block (1,2) and is formed with refrigerant outlet ports (3a,5a) and a plurality of relief holes (3b,5b) each opening into a corresponding one of the compression chambers (21,22) for communicating with a corresponding one of refrigerant inlet ports (29d,30d) formed through the stopper plate (29,30) when a corresponding one of the suction valves (27d,28d) opens. The stopper plate (29,30) is arranged between the valve sheet (27,28) and the cylinder head (4,6) and is formed with the refrigerant inlet ports (29d,30d), with a plurality of refrigerant outlet ports (3a,5a) each opening into the high-pressure chamber (24) for communication with a corresponding one of the relief holes (3b,5b), when a corresponding one of the discharge valves (27a,28a) opens, and with a plurality of stoppers (29a,30a) each setting a limit to an amount of opening of a corresponding one of the discharge valves (27a,28a). The valve sheet (27,28), the valve plate (3,5), and the stopper plate (29,30) can be combined into a unit. <IMAGE>

IPC 1-7 (main, further and additional classification)

F04B 39/10; F04B 27/10

IPC 8 full level (invention and additional information)

F04B 27/08 (2006.01); F04B 27/10 (2006.01); F04B 39/10 (2006.01)

CPC (invention and additional information)

F04B 27/1009 (2013.01); F04B 39/1086 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0874156 A2 19981028; EP 0874156 A3 20000802; CN 1197163 A 19981028; JP H10299657 A 19981110

INPADOC legal status

2001-05-16 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20001101

2001-04-11 [AKX] PAYMENT OF DESIGNATION FEES

- Ref Legal Event Code: AKX

- Free Format Text: DE FR GB SE

2000-08-02 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-08-02 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI

2000-08-02 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7F 04B 39/10 A, 7F 04B 27/10 B

1998-10-28 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB SE

1998-10-28 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI