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Class Information
Number: 418
Name: Rotary expansible chamber devices >
Description: This class relates to devices which include a working chamber the volume of which is progressively variable into which fluid alternately enters and exhausts and which is formed by a surface (or surfaces) of a moving solid member having relative movement with another solid surface (or surfaces), a portion of the working chamber boundary being substantially fixed, and in which:










Class Number Class Name No. of Patents
418/241

Abutment or vane has concurrent rocking and radially sliding movement

34
418/159

Adjustable working chamber peripheral wall controls working fluid flow

44
418/239

Alternately usable vane or abutment structure for reverse working member rotation

2
418/180

Apertured bypass to pressurize or relieve working chamber zone of intermediate pressure

82
418/228

Axially moving vane or abutment

9
418/233

Radially pivoted vane

5
418/229

Sliding

7
418/230

Positively biased

7
418/231

In opposite directions

15
418/232

Spring or fluid bias

17
418/45

Collapsible progressively deformed working chamber wall

32
418/181

Combined

149
418/39

Convertible or changeable by assembly or disassembly

40
418/3

Diverse rotary expansible chamber devices

40
418/75

Grooved abutting cylinder-rotating member end surfaces

49
418/81

Annular groove or recess completely encircles rotation axis

42
418/82

Groove communicates with vane slot

80
418/77

Grooved working member surface

70
418/76

Non-working fluid directed to groove

56
418/79

Radial groove

37
418/80

Radially spaced grooves

10
418/78

Working fluid portion fills intertooth spaces or spaces between adjacent vanes

31
418/83

Heat exchange or non-working fluid lubricating or sealing

191
418/86

Heat exchange by diverted incoming or outgoing working fluid

37
418/100

Intermixed incoming working and non-working fluids

124
418/97

Non-working and working fluids intermix in working chamber

200
418/98

Non-working fluid initially directed to shaft bearing

91
418/99

Non-working fluid initially directed to working member

108
418/91

Non-working fluid passage in inner working or reacting member

91
418/93

Non-working fluid biases vane

42
418/94

With non-working fluid passage in drive shaft

373
418/92

With non-working fluid passage in partition

32
418/96

Outer cylinder member immersed or submerged in non-working fluid

55
418/87

Valve regulated non-working fluid

91
418/95

Vent or non-seal means prevents working and non-working fluid intermix

17
418/90

Wick or absorbent material feed

7
418/84

With condition responsive control of non-working fluid

83
418/101

With coolant air impelling means or finned cylinder surface

82
418/89

With filter for non-working fluid

54
418/85

With heat exchange means for non-working fluid

82
418/88

With pump for non-working fluid

237
418/220

Helical working member

61
418/240

Interconnected abutments

6
418/253

Interconnected vanes

26
418/256

Encompassing moving member interconnects plural vanes

22
418/254

Integrally connected

11
418/255

Diametrically aligned

88
418/257

Interposed movable member interconnects plural vanes

34
418/258

Spring

23
418/191

Interengaging rotating members

88
418/194

Each tapered

27
418/204

Eccentrically mounted

12
418/201.1

Helical or herringbone

364
418/203

Axially counterbalanced

46
418/202

Each member having opposed axially spaced helices

24
418/201.3

Having specific tooth shape

140
418/201.2

With valve

180
418/198

Intermittent rotation

6
418/205

Like rotary members

24
418/206.1

Having each radial protuberance of like dimension

196
418/206.4

Having specific inlet or outlet port shape

76
418/206.5

Having specific rotor or tooth shape

109
418/206.9

Using specific material

36
418/206.7

With bearings

65
418/206.3

With heating or cooling

23
418/206.8

With lubrication

41
418/206.6

With sealing means

91
418/206.2

With timing gear adjustment or arrangement

23
418/199

Multiple units

11
418/200

With axially spaced working members

47
418/195

Non-parallel axis

129
418/196

Three or more

101
418/197

Helical or herringbone

47
418/192

With movable partition

4
418/193

Axially moving

6
418/33

Intermittently accelerated and receding members rotate in same path (alternating piston type)

17
418/35

Each a working member

61
418/38

Cam controlled working member movement

35
418/36

Working member movement controlled by interengaging rotating members

109
418/37

Working member movement controlled by member rotating about parallel axis

38
418/34

Moving cylinder

41
418/158

Magnetically biased vane or abutment

14
418/1

Methods

223
418/270

Miscellaneous

363
418/208

Movable intermediate partition engages peripheries of plural spaced working members

2
418/221

Moving abutment and vane

15
418/160

Moving cylinder

9
418/161

Rotating

23
418/175

Moving partition on stationary member

16
418/164

Rotary internal reacting member

28
418/165

Cylinder engages plural internal reacting members

23
418/166

Intermeshing peripheral surfaces

83
418/168

Cylinder periphery comprises alternate tooth and passage portions (e.g., cage type)

37
418/169

With filler element (e.g., crescent)

31
418/171

Inner member has five or more teeth

274
418/170

With filler element (e.g., crescent)

83
418/167

With intake or exhaust passage in internal member

8
418/172

With movable partition member

11
418/174

Partition radially slidable in cylinder

10
418/173

Partition radially slidable in internal member

65
418/177

Sliding partition

33
418/176

Swinging partition

17
418/162

With axially movable partition member

4
418/163

Cylinder and internal member rotate about non-parallel axes

2
418/5

Multistage

61
418/9

Interengaging rotary members

154
418/10

Three or more

9
418/6

One working chamber stage encircles another

37
418/11

Sliding abutment

91
418/13

Sliding vane

55
418/7

Successive stages alternately produce work

13
418/12

Swinging abutment

8
418/8

Working fluid engages working member serially in circumferentially spaced working chambers

9
418/152

Non-metallic working member, cylinder or partition

202
418/153

Resilient

122
418/154

Partition integral with working member

24
418/155

Extending from working member side

2
418/236

Non-radially positioned sliding vane or abutment

20
418/237

Arc shaped

8
418/238

Positively biased

20
418/DIG.1

Non-working fluid separation

220
418/49

Nutating working member

11
418/50

Non-metallic working member or working chamber portion

11
418/51

With mechanical sealing

25
418/52

Working member common to plural working chambers

3
418/53

Axially spaced working chambers

46
418/209

Plural working chambers

17
418/210

Axially spaced rotating members rotate on common axis

22
418/212

Intermediate member separates and engages plural working members

37
418/214

Interconnected abutments

2
418/213

Plural intermediate members

12
418/211

With axially moving vane or abutment

3
418/215

Axially spaced working chambers

13
418/217

Axially moving abutment or vane

10
418/218

Moving about non-parallel axis

3
418/219

Vane

42
418/216

Helical working member or working member portion

13
418/243

Positively actuated abutment

19
418/244

Cam actuated

8
418/245

In opposite directions

13
418/246

Spring or fluid biased in opposite direction

8
418/249

Fluid biased

40
418/250

Winged abutment

2
418/251

With working fluid passage in abutment

10
418/247

In opposite directions

14
418/248

Spring biased

74
418/259

Positively actuated vane

188
418/260

Cam actuated

58
418/261

In opposite directions

35
418/262

With pivoted interposed lever

8
418/264

With roller

40
418/263

With spring or fluid bias

17
418/268

Fluid biased

196
418/269

Constantly interposed pressure fluid spreads plural vanes

43
418/265

In opposite directions

52
418/266

Spring biased

67
418/267

With fluid bias

41
418/71

Pressure fluid radially balances working or rotating abutment member

16
418/74

Counterbalancing fluid directed to intertooth spaces or spaces between adjacent vanes

8
418/73

Counterbalancing fluid directed to rotating member shaft bearing

11
418/72

With counterbalancing fluid passage through rotating member

11
418/182

Relatively movable working member and drive shaft axes

90
418/207

Relatively moving work transmitting barriers move in separate intersecting chambers

14
418/156

Resilient working member, cylinder or partition

48
418/68

Rotating internal member rotates and oscillates or reciprocates

64
418/32

Self-acting unidirectional flow with reverse rotation or reverse flow with unidirectional rotation

47
418/222

Separable abutment

6
418/102

Shaft or trunnion lubrication or sealing by diverted working fluid portion

146
418/157

Shock or pressure relieving yieldable peripheral working member or cylinder surface portion

9
418/242

Spaced oscillating abutment portions engage working member

1
418/179

Specific material

289
418/40

Speed controlled

7
418/42

Rotating weight positioned on or within inner rotating member

1
418/41

Rotating weight valves working fluid passage

8
418/43

Weight rotates about axially extending axis

15
418/44

Other than working member axis

0
418/234

Tapered vane or abutment (e.g., wedge shaped)

12
418/189

Trapped fluid relief

79
418/190

With tooth modification

31
418/48

Unlike helical surfaces on relatively wobbling rotating member and encompassing cylinder (e.g., moineau type)

267
418/224

Valved vane or abutment

6
418/225

Vane or abutment comprises rotatable element

77
418/227

Positively rotated

44
418/226

Rotates about non-parallel axis

28
418/235

Wear elements or antifriction means in vane or abutment slot

24
418/151

Weight balanced working member or partition

174
418/16

With changeable working chamber magnitude

28
418/22

Axially or radially spaced working chambers

18
418/23

By adjustably limiting vane or abutment movement

59
418/28

By axial movement of movable member

24
418/30

By cylinder or cylinder portion pivotal movement

117
418/31

Cylinder or cylinder portion moved linearly and radially

70
418/19

Intermeshing rotary members

20
418/21

Movable member moved axially

35
418/20

Three or more

9
418/18

Intermittently accelerated and receding members rotate in same path (alternating piston type)

4
418/29

Rotating inner working or reacting member repositioned relative to cylinder

45
418/17

Speed controlled

6
418/24

Spring or fluid biased movable member

34
418/25

Positively biased in opposite directions

7
418/26

With working fluid bias

102
418/27

Spring

69
418/14

With delayed load

39
418/69

With frangible drive connection or clutch

65
418/104

With mechanical sealing

197
418/105

Abutment position adjustment

2
418/131

Axially movable end wall or end wall portion

56
418/134

Adjustable end wall

20
418/132

Progressively biased from inlet to outlet

144
418/135

Spring biased

58
418/133

Surface abutting working member abuts another coplanar cylinder surface portion

167
418/111

By axially relatively moving vane or abutment sections

24
418/110

By axially relatively moving working member sections

8
418/107

By changing working member or cylinder relative position

31
418/108

Radially adjustable

17
418/109

Adjustable working member

29
418/130

Cup shaped cylinder axially movable to abut cylinder side

1
418/139

Seal element between abutment and cylinder or working member

17
418/149

Seal element between stationary cylinder parts

72
418/145

Seal element between vane and cylinder

15
418/147

Movable seal on vane

23
418/148

Positively urged to engage cylinder

35
418/146

On vane side

30
418/140

Seal element between working member and cylinder

37
418/144

Between adjacent cylinder and working member sides

56
418/141

Labyrinth

49
418/142

On working member

180
418/143

On working member circumferential periphery

28
418/136

Seal element between working member and vane

18
418/137

Mounted on working member

41
418/138

Oscillating

23
418/125

Seal on cylinder engaging rotary member separates inlet and outlet ports

22
418/127

Adjustable

13
418/128

With resilient interposed member

7
418/126

Engages plural rotary members

39
418/129

With resilient biasing means

27
418/112

Seal on working member periphery separates inlet and outlet ports

20
418/113

Seal on working member peripheral projection engages cylinder working chamber surface (e.g., apex seals)

37
418/114

Adjustable or expandable peripheral projection

4
418/124

Fluid biased

20
418/119

Integral peripheral and depending side seal

6
418/116

Ring seal or arcuate seal portion

12
418/122

Spring biased

35
418/123

Fluid biased

23
418/118

Swinging seal

1
418/115

Weight balanced or adjustable seal

4
418/120

With axially movable side seal

10
418/121

Spring biased

26
418/117

With plural circumferentially spaced peripheral seals

10
418/106

Vane position adjustment

7
418/15

With plural working fluid inlet or outlet passages

315
418/252

With provision for quick vane replacement

5
418/70

With rapid disassembly feature (i.e., without tools)

15
418/46

With removal or accommodation of solid foreign material in working fluid

26
418/47

With filter

23
418/223

With secondary vane or abutment moving means

6
418/2

With signal, indicator or transparent inspection means

63
418/183

With supply or exhaust passage in working member

55
418/185

Controlled by working member carried valve

29
418/184

Passage includes vane slot

22
418/186

Supply and exhaust passages in working member

67
418/187

Passage extending through working member center of rotation

28
418/188

Supply or exhaust passage through working member center of rotation

123
418/178

With wear surface treatment or integrally plated wear layer

338
418/150

Working chamber surface expressed mathematically

240
418/54

Working member has planetary or planetating movement

49
418/57

Adjustable or resiliently biased working member

495
418/55.1

Helical working member, e.g., scroll

750
418/55.2

Having specific wrap or end plate, e.g., shape, material, coating

453
418/55.5

With biasing means, e.g., axial or radial

547
418/55.6

With lubricant, liquid seal or nonworking fluid separation

462
418/55.4

With mechanical sealing

310
418/55.3

With specific rotation preventing or rotation coupling means

296
418/56

Non-metallic working member, cylinder or partition

26
418/62

Partition pivotally connected to working member and cylinder

9
418/58

Plural working members or chambers

45
418/60

Axially spaced working members

260
418/61.1

Circumferentially spaced working chambers

88
418/61.3

Rotor has one less lobe than cylinder (i.e., gerotor type)

327
418/61.2

Rotor has one more lobe than cylinder (i.e., wankel type)

139
418/59

Radially spaced working chambers

63
418/63

With relatively movable partition member

212
418/65

Having working fluid passage

19
418/66

Integral with working member

25
418/67

Pivoted to working member

12
418/64

Slidable in working member

31
418/4

Working member or cylinder surface has alternate linear and curvilinear movement (e.g., endless)

5
418/103

Working member peripheral surface comprises relatively circumferentially movable segments

0
 
 
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