公开(公告)号：JPH04219481A

公开(公告)日：1992-08-10

申请号：JP40284590

申请日：1990-12-17

Applicant: MATSUSHITA REFRIGERATION

Inventor： MANGYO MASAO ,  KITA ICHIRO

IPC: F04B39/00 ,  F04B39/12 ,  F04B39/14

Abstract: PURPOSE:To control the heating of return refrigerant gas to improve energy efficiency by making a suction noise reducing device attached to a cylinder head through a connecting member of synthetic resin, and providing the connecting member as if it floats in space except a pressing-in part where it is pressed into the cylinder head. CONSTITUTION:A closed type transmission compressor is provided with a suction noise reducing device 5, a cylinder head 6 and a connecting member 7 as a circuit to lead refrigerant gas into the cylinder 4 of a compression element 3. In this case, the noise reducing device 5 is formed of synthetic resin, and its end is provided with a gas outlet hole 5a, and the connecting member 7 is fitted in the hole 5a at its one end. The connecting member 7 is moreover pressed-in a hole 6b on the side wall of the cylinder head 6, and prevented from its positional slippage by positioning projections 7a, 7b, and does not come into contact with a valve plate or the wall of the cylinder head 6 in a suction chamber 6a. The connecting member 7 is therefore arrangedly provided as if it floats in a space 8. Thus the connecting member 7 prevents heating caused by another component for preventing the temperature-rise of return refrigerant gas passing its inside.

公开(公告)号：JPH03290073A

公开(公告)日：1991-12-19

申请号：JP9245990

申请日：1990-04-06

Applicant: MATSUSHITA REFRIGERATION

Inventor： MANGYO MASAO ,  WADA SATOSHI ,  MATSUHASHI IKUHIRO ,  YAMADA TOSHIHIRO ,  KITA ICHIRO ,  YAKUSHI SHUICHI ,  OTORI HIDEKI

IPC: F04B39/00 ,  F04B39/06 ,  F04B39/12

Abstract: PURPOSE:To reduce the coolant staying in a suction chamber and prevent the heating of coolant gas by inserting the communication pipe of a suction muffler formed by the material having a low thermal conductivity into an insertion hole on a cylinder head and forming an opened port opposed to the suction hole. CONSTITUTION:As for a compression element 3 accommodated in a sealed container 1, a cylinder 6 is installed on a cylinder head 4 through a valve plate 5 by a screw N. In this case, an insertion pipe 7 is inserted into a suction muffler 9 made of synthetic resin, and a communication pipe 10 which is integrally molded with the lower part 9b of a suction muffler 9 is allowed to penetrate through the insertion hole 4a of the cylinder head 4, and a part of the pipe 10 is positioned in a suction chamber 4b. The communication pipe 10 is formed into cylindrical form, and the undersurface is formed into an arcuate form so as to contact the undersurface of the suction chamber 4b, and an opened port 10b is formed upwardly from the lower edge at the position faced to the suction hole 5a of the valve plate 5. Accordingly, the thermal influence supplied from the cylinder head 4 is suppressed, and the heating of the coolant gas is prevented, and the volume efficiency is improved.

公开(公告)号：JPH03290072A

公开(公告)日：1991-12-19

申请号：JP9245890

申请日：1990-04-06

Applicant: MATSUSHITA REFRIGERATION

Inventor： MANGYO MASAO ,  WADA SATOSHI ,  MATSUHASHI IKUHIRO ,  YAMADA TOSHIHIRO ,  KITA ICHIRO ,  YAKUSHI SHUICHI ,  OTORI HIDEKI

IPC: F04B39/00 ,  F04B39/06 ,  F04B39/12

Abstract: PURPOSE:To improve assembly work performance and increase volume efficiency by inserting the communication pipe of a suction muffler shaped by the material having the low thermal conductivity in an insertion hole of a cylinder head and installing a cap having the low thermal conductivity on the periphery of a suction hole and the penetration chamber of the cylinder head. CONSTITUTION:As for a compression element 3 accommodated in a sealed container 1, a cylinder head 4 is installed on one edge side of a cylinder 6 through a valve plate 5 by a screw N. In this case, an insertion pipe 7 is inserted into a suction muffler 9 made of synthetic resin, and a communication pipe 10 which is integrally molded with the lower part 9b of the suction muffler 9 is inserted into the insertion hole 4a of the cylinder head 4. A cap 11 is arranged in a penetration chamber 4b, and the communication pipe 10 of the suction muffler 9 penetrates through the insertion hole 4a of the cylinder head 4 and the hole 11c of the cap 11, and a part of the pipe 10 is positioned in the cap 11. Accordingly, the sucked gas is introduced into the suction hole without being warmed by the cylinder head 4 made of metal, and the volume efficiency is improved.

公开(公告)号：JPH03249382A

公开(公告)日：1991-11-07

申请号：JP5035590

申请日：1990-02-28

Applicant: MATSUSHITA REFRIGERATION

Inventor： KITA ICHIRO

IPC: F04B39/00 ,  F04B39/12 ,  F04B39/14

Abstract: PURPOSE:To prevent a nose from occurring by fitting an inserting part in the connection of an inlet muffler in a slip part of a cylinder head, while constituting a projection part of a latching claw part in the connection of the inlet muffler to be clamped to a recess latching part of this slip part of the cylinder head. CONSTITUTION:In connection of the inner part of a compressor 1, a suction tube 1a is connected to an inlet muffler 11 at a connecting part 1c via a joint spring tube 1b. In this inlet muffler 11, an inserting part 13a installed in its connecting part 13 is inserted into a slit part of a cylinder head 8 whereby the position is clamped without any lost motion, and a projecting part 17 (or a recess) at the tip of a latching claw part 16 installed in the connecting part 13 is fitted in a recess latching part 19 (or a projecting part) of the slit part 18 of the cylinder head 8 whereby it is surely clamped tight. Consequently, any noise due to backlash or lost motion is no longer emitted.

公开(公告)号：JPH03100384A

公开(公告)日：1991-04-25

申请号：JP23782689

申请日：1989-09-13

Applicant: MATSUSHITA REFRIGERATION

Inventor： KITA ICHIRO

IPC: F04B39/00

Abstract: PURPOSE:To prevent generation of noise by bringing a head tapered part, provided in a slit part of a cylinder head, into pressure contact with a tapered part in a connection part of a suction muffler formed with its communication hole. CONSTITUTION:A head tapered part 18, provided in a slit part 17 of a cylinder head 8, is brought into press contact with a tapered part 16 in a connection part 13 of a suction muffler 11 formed with its communication hole 12a, and the suction muffler 11 is fixed by the tapered part 16 in the connection part 13 of the suction muffler 11. In this way, the connection part 13, having a communication hole 12a, is press-mounted to a suction port 10, provided in a valve plate 7, and surely fixedly held, while also the suction muffler 11 is surely fixed to prevent noise generated by vibration and looseness of the suction muffler 11. Also simultaneously the necessity for additional parts such as a steel belt, is eliminated and the improvement of rationalization and reliability and the characteristic improvement by decreasing the noise are simultaneously obtained.

公开(公告)号：JPS6385270A

公开(公告)日：1988-04-15

申请号：JP22903986

申请日：1986-09-26

Applicant: MATSUSHITA REFRIGERATION

Inventor： KITA ICHIRO

IPC: F04B39/02 ,  F04B39/06

Abstract: PURPOSE:To secure the superior refigeration faculty and lubrication faculty by forming a transverse hole which communicates to an oil feeding hole, onto the eccentric shaft of a crankshaft, and forming a cut part at the large edge part of a connecting rod freely fitted into the eccentric shaft and supplying the refrigerator oil only into the cooling-necessary part. CONSTITUTION:When an electric motor 3 revolves, the turning moment of a crankshaft 8 is transmitted as reciprocating movement to a piston 6 through a connecting rod 10 in which a large edge part 10a is freely fitted onto an eccentric shaft 9, and coolant gas is compressed. The refrigerator oil 12 stored in the bottom part of a sealed case 2 is pumped up by the revolution of the crankshaft 8, and the introduced into an oil hole 15 on the eccentric shaft 9. In this case, the refrigerator oil introduced into the oil hole 15 is introduced also into a transverse hole 17 formed on the eccentric shaft 9. The refrigerator oil 12 is jetted only in the case when the cut part 16 formed in a prescribed direction at the large data part 10a of the connecting rod 10 is superposed with the transverse hole 17. Therefore, the refrigerator oil 12 is jetted only to the cooling-necessary part of the piston 6, etc.

公开(公告)号：JPS62247189A

公开(公告)日：1987-10-28

申请号：JP9064786

申请日：1986-04-18

Applicant: MATSUSHITA REFRIGERATION

Inventor： KITA ICHIRO

IPC: F04B39/02 ,  F04B39/10

Abstract: PURPOSE:To extend a life of a compressor, by providing a muffler cover having a fine hole at an upper portion of a suction muffler chamber, and thereby forming an oil reservoir above the muffler cover. CONSTITUTION:A muffler cover 14 having a fine hole 15 is provided at an upper portion of a suction muffler chamber 13 to thereby form an oil reservoir 12 above the muffler cover 14. With this arrangement, a refrigerating machine oil gathered in the oil reservoir 12 enters through the fine hole 15 into the suction muffler chamber 13, and is continuously and stably supplied with the suction of a refrigerant gas to a suction valve, a discharge valve and a sliding surface between a piston and a cylinder bore. Accordingly, the valve closing performance of the suction valve and the discharge valve as well as the lubricative sliding between the piston and the cylinder bore may be improved, thereby remarkably extending a life of a compressor.

公开(公告)号：JP2002247829A

公开(公告)日：2002-08-30

申请号：JP2001039850

申请日：2001-02-16

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAYASHI AKIRA ,  KITA ICHIRO ,  MORITA ICHIRO ,  INAGAKI KO

IPC: H02K1/18 ,  H02K33/16

Abstract: PROBLEM TO BE SOLVED: To improve productivity and reliability of a linear motor. SOLUTION: A smooth cylindrical shape can be formed easily by engaging a thin plate 9 having higher magnetic permeability among a plurality of projected portions 11 provided on a fixing belt 10 which may be curved, and by forming an outer yoke 8 in which the fixing belt 10 is formed cylindrically so that the thin plate 9 is laminated almost radially. Accordingly, productivity can be improved and moreover reliability can also be improved by preventing contact with a movable magnet.

公开(公告)号：JP2002191161A

公开(公告)日：2002-07-05

申请号：JP2000384867

申请日：2000-12-19

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAYASHI AKIRA ,  KITA ICHIRO ,  MORITA ICHIRO ,  INAGAKI KO ,  KATAYAMA MAKOTO

IPC: H02K1/12 ,  H02K1/18 ,  H02K15/02 ,  H02K33/16

Abstract: PROBLEM TO BE SOLVED: To enhance productivity and reliability, by easily forming a smooth cylindrical form of a linear motor. SOLUTION: The productivity can be enhanced because the smooth cylindrical form can be formed, and also the reliability can be enhanced by preventing contact with a mobile magnet, by equipping the linear motor with a cylindrical outer yoke 8 where a thin plate 9 high in permeability is bent repeatedly for stacking circumferentially.

公开(公告)号：JP2001165045A

公开(公告)日：2001-06-19

申请号：JP35131399

申请日：1999-12-10

Applicant: MATSUSHITA REFRIGERATION

Inventor： KANESHIRO KENJI ,  KITA ICHIRO ,  UMEOKA IKUTOMO ,  KAWABATA JUNTA ,  YAGI AKIO ,  SUGIMOTO SHUHEI

IPC: F04B39/00

Abstract: PROBLEM TO BE SOLVED: To attain low vibration and low noise by effectively reducing transmission of the vibration to a closed vessel from an elastic support member of spring or the like supporting a motor-driven compression element, relating to a hermetic motor-driven compressor used in a household refrigerator or the like. SOLUTION: At least three or more protrusion parts 19 having an almost circular section along a side surface part 18 of a lower shell 3 are provided in a corner part 17, in addition by arranging a spring 20 supporting a motor- driven compression element 15 in an inner side of the protrusion part 19, a vibration transmitted to a bottom surface part 16 through the spring 20 from the motor-driven compression element 15 is effectively reduced, reduction of noise generated by resonance of the bottom surface part 16 can be attained without enlarging a closed vessel 4.