US Patent Class 418
ROTARY EXPANSIBLE CHAMBER DEVICES



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Current as of: June, 1999
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  DF  CLASS NOTES
1  DF  METHODS
2  DF  WITH SIGNAL, INDICATOR OR TRANSPARENT INSPECTION MEANS
3  DF  DIVERSE ROTARY EXPANSIBLE CHAMBER DEVICES
4  DF  WORKING MEMBER OR CYLINDER SURFACE HAS ALTERNATE LINEAR AND CURVILINEAR MOVEMENT (E.G., ENDLESS)
5  DF  MULTISTAGE
6  DF  .~ One working chamber stage encircles another
7  DF  .~ Successive stages alternately produce work
8  DF  .~ Working fluid engages working member serially in circumferentially spaced working chambers
9  DF  .~ Interengaging rotary members
10  DF  .~.~ Three or more
11  DF  .~ Sliding abutment
12  DF  .~ Swinging abutment
13  DF  .~ Sliding vane
14  DF  WITH DELAYED LOAD
15  DF  WITH PLURAL WORKING FLUID INLET OR OUTLET PASSAGES
16  DF  WITH CHANGEABLE WORKING CHAMBER MAGNITUDE
17  DF  .~ Speed controlled
18  DF  .~ Intermittently accelerated and receding members rotate in same path (alternating piston type)
19  DF  .~ Intermeshing rotary members
20  DF  .~.~ Three or more
21  DF  .~.~ Movable member moved axially
22  DF  .~ Axially or radially spaced working chambers
23  DF  .~ By adjustably limiting vane or abutment movement
24  DF  .~ Spring or fluid biased movable member
25  DF  .~.~ Positively biased in opposite directions
26  DF  .~.~.~ With working fluid bias
27  DF  .~.~ Spring
28  DF  .~ By axial movement of movable member
29  DF  .~ Rotating inner working or reacting member repositioned relative to cylinder
30  DF  .~ By cylinder or cylinder portion pivotal movement
31  DF  .~ Cylinder or cylinder portion moved linearly and radially
32  DF  SELF-ACTING UNIDIRECTIONAL FLOW WITH REVERSE ROTATION OR REVERSE FLOW WITH UNIDIRECTIONAL ROTATION
33  DF  INTERMITTENTLY ACCELERATED AND RECEDING MEMBERS ROTATE IN SAME PATH (ALTERNATING PISTON TYPE)
34  DF  .~ Moving cylinder
35  DF  .~ Each a working member
36  DF  .~.~ Working member movement controlled by interengaging rotating members
37  DF  .~.~ Working member movement controlled by member rotating about parallel axis
38  DF  .~.~ Cam controlled working member movement
39  DF  CONVERTIBLE OR CHANGEABLE BY ASSEMBLY OR DISASSEMBLY
40  DF  SPEED CONTROLLED
41  DF  .~ Rotating weight valves working fluid passage
42  DF  .~ Rotating weight positioned on or within inner rotating member
43  DF  .~ Weight rotates about axially extending axis
44  DF  .~.~ Other than working member axis
45  DF  COLLAPSIBLE PROGRESSIVELY DEFORMED WORKING CHAMBER WALL
46  DF  WITH REMOVAL OR ACCOMMODATION OF SOLID FOREIGN MATERIAL IN WORKING FLUID
47  DF  .~ With filter
48  DF  UNLIKE HELICAL SURFACES ON RELATIVELY WOBBLING ROTATING MEMBER AND ENCOMPASSING CYLINDER (E.G., MOINEAU TYPE)
49  DF  NUTATING WORKING MEMBER
50  DF  .~ Non-metallic working member or working chamber portion
51  DF  .~ With mechanical sealing
52  DF  .~ Working member common to plural working chambers
53  DF  .~.~ Axially spaced working chambers
54  DF  WORKING MEMBER HAS PLANETARY OR PLANETATING MOVEMENT
55.1  DF  .~ Helical working member, e.g., scroll
55.2  DF  .~.~ Having specific wrap or end plate, e.g., shape, material, coating
55.3  DF  .~.~ With specific rotation preventing or rotation coupling means
55.4  DF  .~.~ With mechanical sealing
55.5  DF  .~.~ With biasing means, e.g., axial or radial
55.6  DF  .~.~ With lubricant, liquid seal or nonworking fluid separation
56  DF  .~ Non-metallic working member, cylinder or partition
57  DF  .~ Adjustable or resiliently biased working member
58  DF  .~ Plural working members or chambers
59  DF  .~.~ Radially spaced working chambers
60  DF  .~.~ Axially spaced working members
61.1  DF  .~.~ Circumferentially spaced working chambers
61.2  DF  .~.~.~ Rotor has one more lobe than cylinder (i.e., Wankel type)
61.3  DF  .~.~.~ Rotor has one less lobe than cylinder (i.e., Gerotor type)
62  DF  .~ Partition pivotally connected to working member and cylinder
63  DF  .~ With relatively movable partition member
64  DF  .~.~ Slidable in working member
65  DF  .~.~ Having working fluid passage
66  DF  .~.~ Integral with working member
67  DF  .~.~ Pivoted to working member
68  DF  ROTATING INTERNAL MEMBER ROTATES AND OSCILLATES OR RECIPROCATES
69  DF  WITH FRANGIBLE DRIVE CONNECTION OR CLUTCH
70  DF  WITH RAPID DISASSEMBLY FEATURE (I.E., WITHOUT TOOLS)
71  DF  PRESSURE FLUID RADIALLY BALANCES WORKING OR ROTATING ABUTMENT MEMBER
72  DF  .~ With counterbalancing fluid passage through rotating member
73  DF  .~ Counterbalancing fluid directed to rotating member shaft bearing
74  DF  .~ Counterbalancing fluid directed to intertooth spaces or spaces between adjacent vanes
75  DF  GROOVED ABUTTING CYLINDER-ROTATING MEMBER END SURFACES
76  DF  .~ Non-working fluid directed to groove
77  DF  .~ Grooved working member surface
78  DF  .~ Working fluid portion fills intertooth spaces or spaces between adjacent vanes
79  DF  .~ Radial groove
80  DF  .~ Radially spaced grooves
81  DF  .~ Annular groove or recess completely encircles rotation axis
82  DF  .~ Groove communicates with vane slot
83  DF  HEAT EXCHANGE OR NON-WORKING FLUID LUBRICATING OR SEALING
84  DF  .~ With condition responsive control of non-working fluid
85  DF  .~ With heat exchange means for non-working fluid
86  DF  .~ Heat exchange by diverted incoming or outgoing working fluid
87  DF  .~ Valve regulated non-working fluid
88  DF  .~ With pump for non-working fluid
89  DF  .~ With filter for non-working fluid
90  DF  .~ Wick or absorbent material feed
91  DF  .~ Non-working fluid passage in inner working or reacting member
92  DF  .~.~ With non-working fluid passage in partition
93  DF  .~.~ Non-working fluid biases vane
94  DF  .~.~ With non-working fluid passage in drive shaft
95  DF  .~ Vent or non-seal means prevents working and non-working fluid intermix
96  DF  .~ Outer cylinder member immersed or submerged in non-working fluid
97  DF  .~ Non-working and working fluids intermix in working chamber
98  DF  .~.~ Non-working fluid initially directed to shaft bearing
99  DF  .~.~ Non-working fluid initially directed to working member
100  DF  .~ Intermixed incoming working and non-working fluids
101  DF  .~ With coolant air impelling means or finned cylinder surface
102  DF  SHAFT OR TRUNNION LUBRICATION OR SEALING BY DIVERTED WORKING FLUID PORTION
103  DF  WORKING MEMBER PERIPHERAL SURFACE COMPRISES RELATIVELY CIRCUMFERENTIALLY MOVABLE SEGMENTS
104  DF  WITH MECHANICAL SEALING
105  DF  .~ Abutment position adjustment
106  DF  .~ Vane position adjustment
107  DF  .~ By changing working member or cylinder relative position
108  DF  .~.~ Radially adjustable
109  DF  .~.~.~ Adjustable working member
110  DF  .~ By axially relatively moving working member sections
111  DF  .~ By axially relatively moving vane or abutment sections
112  DF  .~ Seal on working member periphery separates inlet and outlet ports
113  DF  .~.~ Seal on working member peripheral projection engages cylinder working chamber surface (e.g., apex seals)
114  DF  .~.~.~ Adjustable or expandable peripheral projection
115  DF  .~.~.~ Weight balanced or adjustable seal
116  DF  .~.~.~ Ring seal or arcuate seal portion
117  DF  .~.~.~ With plural circumferentially spaced peripheral seals
118  DF  .~.~.~ Swinging seal
119  DF  .~.~.~ Integral peripheral and depending side seal
120  DF  .~.~.~ With axially movable side seal
121  DF  .~.~.~.~ Spring biased
122  DF  .~.~.~ Spring biased
123  DF  .~.~.~.~ Fluid biased
124  DF  .~.~.~ Fluid biased
125  DF  .~ Seal on cylinder engaging rotary member separates inlet and outlet ports
126  DF  .~.~ Engages plural rotary members
127  DF  .~.~ Adjustable
128  DF  .~.~.~ With resilient interposed member
129  DF  .~.~ With resilient biasing means
130  DF  .~ Cup shaped cylinder axially movable to abut cylinder side
131  DF  .~ Axially movable end wall or end wall portion
132  DF  .~.~ Progressively biased from inlet to outlet
133  DF  .~.~ Surface abutting working member abuts another coplanar cylinder surface portion
134  DF  .~.~ Adjustable end wall
135  DF  .~.~ Spring biased
136  DF  .~ Seal element between working member and vane
137  DF  .~.~ Mounted on working member
138  DF  .~.~.~ Oscillating
139  DF  .~ Seal element between abutment and cylinder or working member
140  DF  .~ Seal element between working member and cylinder
141  DF  .~.~ Labyrinth
142  DF  .~.~ On working member
143  DF  .~.~.~ On working member circumferential periphery
144  DF  .~.~ Between adjacent cylinder and working member sides
145  DF  .~ Seal element between vane and cylinder
146  DF  .~.~ On vane side
147  DF  .~.~ Movable seal on vane
148  DF  .~.~.~ Positively urged to engage cylinder
149  DF  .~ Seal element between stationary cylinder parts
150  DF  WORKING CHAMBER SURFACE EXPRESSED MATHEMATICALLY
151  DF  WEIGHT BALANCED WORKING MEMBER OR PARTITION
152  DF  NON-METALLIC WORKING MEMBER, CYLINDER OR PARTITION
153  DF  .~ Resilient
154  DF  .~.~ Partition integral with working member
155  DF  .~.~.~ Extending from working member side
156  DF  RESILIENT WORKING MEMBER, CYLINDER OR PARTITION
157  DF  SHOCK OR PRESSURE RELIEVING YIELDABLE PERIPHERAL WORKING MEMBER OR CYLINDER SURFACE PORTION
158  DF  MAGNETICALLY BIASED VANE OR ABUTMENT
159  DF  ADJUSTABLE WORKING CHAMBER PERIPHERAL WALL CONTROLS WORKING FLUID FLOW
160  DF  MOVING CYLINDER
161  DF  .~ Rotating
162  DF  .~.~ With axially movable partition member
163  DF  .~.~.~ Cylinder and internal member rotate about non-parallel axes
164  DF  .~.~ Rotary internal reacting member
165  DF  .~.~.~ Cylinder engages plural internal reacting members
166  DF  .~.~.~ Intermeshing peripheral surfaces
167  DF  .~.~.~.~ With intake or exhaust passage in internal member
168  DF  .~.~.~.~ Cylinder periphery comprises alternate tooth and passage portions (e.g., cage type)
169  DF  .~.~.~.~.~ With filler element (e.g., crescent)
170  DF  .~.~.~.~ With filler element (e.g., crescent)
171  DF  .~.~.~.~ Inner member has five or more teeth
172  DF  .~.~.~ With movable partition member
173  DF  .~.~.~.~ Partition radially slidable in internal member
174  DF  .~.~.~.~ Partition radially slidable in cylinder
175  DF  .~.~ Moving partition on stationary member
176  DF  .~.~ Swinging partition
177  DF  .~.~ Sliding partition
178  DF  WITH WEAR SURFACE TREATMENT OR INTEGRALLY PLATED WEAR LAYER
179  DF  SPECIFIC MATERIAL
180  DF  APERTURED BYPASS TO PRESSURIZE OR RELIEVE WORKING CHAMBER ZONE OF INTERMEDIATE PRESSURE
181  DF  COMBINED
182  DF  RELATIVELY MOVABLE WORKING MEMBER AND DRIVE SHAFT AXES
183  DF  WITH SUPPLY OR EXHAUST PASSAGE IN WORKING MEMBER
184  DF  .~ Passage includes vane slot
185  DF  .~ Controlled by working member carried valve
186  DF  .~ Supply and exhaust passages in working member
187  DF  .~.~ Passage extending through working member center of rotation
188  DF  .~ Supply or exhaust passage through working member center of rotation
189  DF  TRAPPED FLUID RELIEF
190  DF  .~ With tooth modification
191  DF  INTERENGAGING ROTATING MEMBERS
192  DF  .~ With movable partition
193  DF  .~.~ Axially moving
194  DF  .~ Each tapered
195  DF  .~ Non-parallel axis
196  DF  .~ Three or more
197  DF  .~.~ Helical or herringbone
198  DF  .~ Intermittent rotation
199  DF  .~ Multiple units
200  DF  .~.~ With axially spaced working members
201.1  DF  .~ Helical or herringbone
201.2  DF  .~.~ With valve
201.3  DF  .~.~ Having specific tooth shape
202  DF  .~.~ Each member having opposed axially spaced helices
203  DF  .~.~ Axially counterbalanced
204  DF  .~ Eccentrically mounted
205  DF  .~ Like rotary members
206.1  DF  .~.~ Having each radial protuberance of like dimension
206.2  DF  .~.~.~ With timing gear adjustment or arrangement
206.3  DF  .~.~.~ With heating or cooling
206.4  DF  .~.~.~ Having specific inlet or outlet port shape
206.5  DF  .~.~.~ Having specific rotor or tooth shape
206.6  DF  .~.~.~ With sealing means
206.7  DF  .~.~.~ With bearings
206.8  DF  .~.~.~ With lubrication
206.9  DF  .~.~.~ Using specific material
207  DF  RELATIVELY MOVING WORK TRANSMITTING BARRIERS MOVE IN SEPARATE INTERSECTING CHAMBERS
208  DF  MOVABLE INTERMEDIATE PARTITION ENGAGES PERIPHERIES OF PLURAL SPACED WORKING MEMBERS
209  DF  PLURAL WORKING CHAMBERS
210  DF  .~ Axially spaced rotating members rotate on common axis
211  DF  .~.~ With axially moving vane or abutment
212  DF  .~.~ Intermediate member separates and engages plural working members
213  DF  .~.~.~ Plural intermediate members
214  DF  .~.~.~ Interconnected abutments
215  DF  .~ Axially spaced working chambers
216  DF  .~.~ Helical working member or working member portion
217  DF  .~.~ Axially moving abutment or vane
218  DF  .~.~.~ Moving about non-parallel axis
219  DF  .~.~.~ Vane
220  DF  HELICAL WORKING MEMBER
221  DF  MOVING ABUTMENT AND VANE
222  DF  SEPARABLE ABUTMENT
223  DF  WITH SECONDARY VANE OR ABUTMENT MOVING MEANS
224  DF  VALVED VANE OR ABUTMENT
225  DF  VANE OR ABUTMENT COMPRISES ROTATABLE ELEMENT
226  DF  .~ Rotates about non-parallel axis
227  DF  .~ Positively rotated
228  DF  AXIALLY MOVING VANE OR ABUTMENT
229  DF  .~ Sliding
230  DF  .~.~ Positively biased
231  DF  .~.~.~ In opposite directions
232  DF  .~.~.~.~ Spring or fluid bias
233  DF  .~ Radially pivoted vane
234  DF  TAPERED VANE OR ABUTMENT (E.G., WEDGE SHAPED)
235  DF  WEAR ELEMENTS OR ANTIFRICTION MEANS IN VANE OR ABUTMENT SLOT
236  DF  NON-RADIALLY POSITIONED SLIDING VANE OR ABUTMENT
237  DF  .~ Arc shaped
238  DF  .~ Positively biased
239  DF  ALTERNATELY USABLE VANE OR ABUTMENT STRUCTURE FOR REVERSE WORKING MEMBER ROTATION
240  DF  INTERCONNECTED ABUTMENTS
241  DF  ABUTMENT OR VANE HAS CONCURRENT ROCKING AND RADIALLY SLIDING MOVEMENT
242  DF  SPACED OSCILLATING ABUTMENT PORTIONS ENGAGE WORKING MEMBER
243  DF  POSITIVELY ACTUATED ABUTMENT
244  DF  .~ Cam actuated
245  DF  .~.~ In opposite directions
246  DF  .~.~ Spring or fluid biased in opposite direction
247  DF  .~ In opposite directions
248  DF  .~ Spring biased
249  DF  .~ Fluid biased
250  DF  .~.~ Winged abutment
251  DF  .~.~ With working fluid passage in abutment
252  DF  WITH PROVISION FOR QUICK VANE REPLACEMENT
253  DF  INTERCONNECTED VANES
254  DF  .~ Integrally connected
255  DF  .~.~ Diametrically aligned
256  DF  .~ Encompassing moving member interconnects plural vanes
257  DF  .~ Interposed movable member interconnects plural vanes
258  DF  .~.~ Spring
259  DF  POSITIVELY ACTUATED VANE
260  DF  .~ Cam actuated
261  DF  .~.~ In opposite directions
262  DF  .~.~.~ With pivoted interposed lever
263  DF  .~.~.~ With spring or fluid bias
264  DF  .~.~.~ With roller
265  DF  .~ In opposite directions
266  DF  .~ Spring biased
267  DF  .~.~ With fluid bias
268  DF  .~ Fluid biased
269  DF  .~.~ Constantly interposed pressure fluid spreads plural vanes
270  DF  MISCELLANEOUS
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DIGEST
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DIG 1  DD  NON-WORKING FLUID SEPARATION