Invention Grant
- Patent Title: Sealed compressor and freezer device or refrigerator equipped with same
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Application No.: US14912745Application Date: 2014-08-27
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Publication No.: US11236740B2Publication Date: 2022-02-01
- Inventor: Ko Inagaki , Masanori Kobayashi , Hiroyuki Kawano
- Applicant: PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE
- Applicant Address: SG Singapore
- Assignee: PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE
- Current Assignee: PANASONIC APPLIANCES REFRIGERATION DEVICES SINGAPORE
- Current Assignee Address: SG Singapore
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JPJP2013-181864 20130903,JPJP2014-126894 20140620,JPJP2014-140609 20140708
- International Application: PCT/JP2014/004392 WO 20140827
- International Announcement: WO2015/033536 WO 20150312
- Main IPC: F04B39/02
- IPC: F04B39/02 ; F04B9/04 ; F04B17/03 ; F25B31/02 ; F04B39/00 ; F04B39/12

Abstract:
Sealed container (102) houses electric unit (110) equipped with stator (114) and a rotor (116), and compression unit (112) disposed above electric unit (110). Compression unit (112) includes shaft (118) that includes main shaft portion (120) and eccentric shaft portion (122), and cylinder block (124). Compression unit (112) further includes connection portion (136) that connects piston (128) reciprocatively inserted into cylinder (130) and eccentric shaft portion (122), and a thrust bearing that supports a load of shaft (118) in a vertical direction. The thrust bearing includes an upper race in contact with a flange portion of shaft (118), a lower race in contact with a thrust surface of cylinder block (124), and a rolling element. An overall height of sealed container (102) is sized not to exceed a length six times larger than a diameter of piston (128).
Public/Granted literature
- US20160201661A1 SEALED COMPRESSOR AND FREEZER DEVICE OR REFRIGERATOR EQUIPPED WITH SAME Public/Granted day:2016-07-14
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