ClassID:

143565

F04C18/045 - CPC Classification

Classification description:

Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents of internal-axis type having a C-shaped piston

Recent Application in this class:
#1
20150240815
2015-08-27

Rotary compressor

#2
20150211481
2015-07-30

Nutating fluid-mechanical energy converter

#3
20140186202
2014-07-03

Compressor

#4
20140186201
2014-07-03

Compressor

#5
20130011290
2013-01-10

Rotary compressor having main cylinder chamber and sub-cylinder chamber with an end plate received therein

#6
20100326128
2010-12-30

Fluid machine

#7
20100322809
2010-12-23

Fluid machinery having annular back pressure space communicating with oil passage

#8
20100319394
2010-12-23

Compressor and refrigeration apparatus

#9
20100296959
2010-11-25

Rotary-type fluid machine

#10
20100233008
2010-09-16

Rotary fluid machine having outer and inner cylinder chambers with different heights

#11
20100119378
2010-05-13

ROTARY COMPRESSOR

#12
20090277216
2009-11-12

Mounting structure of discharge valve in scroll compressor

#13
20090148325
2009-06-11

Rotary type compressor

#14
20090074600
2009-03-19

Mounting structure of discharge valve in rotary compressor

#15
20090013714
2009-01-15

Refrigeration system

#16
20080232991
2008-09-25

Rotary fluid machine with a suction shutoff angle of the outer cylinder chamber being greater than a suction shutoff angle of the inner cylinder chamber

#17
20070224073
2007-09-27

Rotary fluid machine having a swinging bushing with a swing center disposed radially inwardly of an annular midline of an annular piston

#18
20070065324
2007-03-22

Rotary compressor with low pressure space surrounding outer peripheral face of compression mechanism and discharge passage passing through housing

#19
20070041852
2007-02-22

Rotary compressor

#20
20070036666
2007-02-15

Rotary fluid machine

#21
20070003425
2007-01-04

Rotary fluid device performing compression and expansion of fluid within a common cylinder

#22
20060198749
2006-09-07

Capacity-changing unit of orbiting vane compressor

#23
20060177334
2006-08-10

Axial force reducing structure of orbiting vane compressor

#24
20060073053
2006-04-06

Orbiting vane compressor

#25
20060073051
2006-04-06

Capacity-changing unit of orbiting vane compressor