|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

ENGINES AND PUMPS

|  | F01 |
MACHINES OR ENGINES IN GENERAL (combustion engines Fulltext... Hierarchy... Expanded...F02; machines for liquids Fulltext... Hierarchy... Expanded...F03, Fulltext... Hierarchy... Expanded...F04); ENGINE PLANTS IN GENERAL; STEAM ENGINES

|  | F01C |
ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES

|  | F01C |
Note(s) Attention is drawn to the notes preceding class Fulltext... Hierarchy... Expanded...F01, especially as regards the definitions of "rotary-piston machine", "oscillating-piston machine", "rotary piston", "co-operating members", and "internal-axis". The subject-matter of this sub-class comprises: rotary-piston or oscillating-piston engines for elastic fluids, e.g. steam, rotary-piston or oscillating-piston engines for liquids and elastic fluids, rotary-piston or oscillating-piston machines for elastic fluids, rotary-piston or oscillating-piston machines for liquids and elastic fluids. In this sub-class, the term "rotary-piston machine" embraces the German terms "Drehkolbenmaschinen", "Kreiskolbenmaschinen", and "Umlaufkolbenmaschinen".

|  | F01C 1/00 |
Rotary-piston machines or engines (with axes of co-operating members non-parallel Fulltext... Hierarchy... Expanded...F01C 3/00; with the working-chamber walls at least partly resiliently deformable Fulltext... Hierarchy... Expanded...F01C 5/00; with fluid ring or the like Fulltext... Hierarchy... Expanded...F01C 7/00; rotary-piston machines or engines in which the working fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons Fulltext... Hierarchy... Expanded...F01B 13/00)

|  | F01C 1/02 |
· | of arcuate-engagement type, i.e. with circular translatory movement of co-operating members

|  | F01C 1/04 |
· · | of internal-axis type

|  | F01C 1/06 |
· · | of other than internal-axis type (coaxial type Fulltext... Hierarchy... Expanded...F01C 1/42)

|  | F01C 1/08 |
· | of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing

|  | F01C 1/10 |
· · | of internal-axis type with the outer member having more teeth or tooth-equivalents, than the inner member

|  | F01C 1/12 |
· · | of other than internal-axis type

|  | F01C 1/14 |
· · · | with toothed rotary pistons

|  | F01C 1/16 |
· · · · | with helical teeth, e.g. chevron-shaped, screw type

|  | F01C 1/18 |
· · · · | with similar tooth forms (Fulltext... Hierarchy... Expanded...F01C 1/16 takes precedence)

|  | F01C 1/20 |
· · · · | with dissimilar tooth forms (Fulltext... Hierarchy... Expanded...F01C 1/16 takes precedence)

|  | F01C 1/22 |
· | of internal-axis type with equidirectional movement of co-operating members at the points of interengagement the inner member having more teeth or tooth-equivalents than the outer member

|  | F01C 1/24 |
· | of counter-engagement type, i.e. the movement of co-operating members at the points of engagement being in opposite directions

|  | F01C 1/26 |
· · | of internal-axis type

|  | F01C 1/28 |
· · | of other than internal-axis type

|  | F01C 1/30 |
· | Rotary-piston machines or engines not restricted to only one of the sub-groups Fulltext... Hierarchy... Expanded...F01C 1/02, Fulltext... Hierarchy... Expanded...F01C 1/08, Fulltext... Hierarchy... Expanded...F01C 1/22 or Fulltext... Hierarchy... Expanded...F01C 1/24

|  | F01C 1/32 |
· · | having both the movements defined in sub-group Fulltext... Hierarchy... Expanded...F01C 1/02 and relative reciprocation between members

|  | F01C 1/34 |
· · | having the movements defined in sub-group Fulltext... Hierarchy... Expanded...F01C 1/08 or Fulltext... Hierarchy... Expanded...F01C 1/22 and relative reciprocation between members

|  | F01C 1/36 |
· · | having both the movements defined in sub-groups Fulltext... Hierarchy... Expanded...F01C 1/22 and Fulltext... Hierarchy... Expanded...F01C 1/24

|  | F01C 1/38 |
· · | having the movement defined in Fulltext... Hierarchy... Expanded...F01C 1/02 and having a hinged member

|  | F01C 1/40 |
· · | having the movement defined in Fulltext... Hierarchy... Expanded...F01C 1/08 and having a hinged member

|  | F01C 1/42 |
· · | with coaxially-mounted members having continuously-changing circumferential distance

|  | F01C 3/00 |
Rotary-piston machines or engines with non-parallel axes of movement of co-operating members (with the working-chamber walls being at least partly resiliently deformable Fulltext... Hierarchy... Expanded...F01C 5/00)

|  | F01C 3/02 |
· | the axes being arranged at an angle of 90°

|  | F01C 3/04 |
· · | with axially-sliding vanes

|  | F01C 3/06 |
· | the axes being arranged otherwise than at an angle of 90³

|  | F01C 3/08 |
· · | of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing

|  | F01C 5/00 |
Rotary-piston machines or engines with the working-chamber walls at least partly resiliently deformable

|  | F01C 5/02 |
· | the resiliently-deformable wall being part of the inner member, e.g. of a rotary piston

|  | F01C 5/04 |
· | the resiliently-deformable wall being part of the outer member, e.g. of a housing

|  | F01C 5/06 |
· | the resiliently-deformable wall being a separate member

|  | F01C 5/08 |
· · | of tubular form, e.g. hose

|  | F01C 7/00 |
Rotary-piston machines or engines with fluid ring or the like

|  | F01C 9/00 |
Oscillating-piston machines or engines

|  | F01C 11/00 |
Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type (Fulltext... Hierarchy... Expanded...F01C 13/00 takes precedence; combinations of two or more pumps Fulltext... Hierarchy... Expanded...F04; fluid gearing Fulltext... Hierarchy... Expanded...F16H)

|  | F01C 13/00 |
Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby (aspects predominantly concerning driven devices, see the relevant classes for these devices)

|  | F01C 13/02 |
· | for driving hand-held tools or the like

|  | F01C 13/04 |
· | for driving pumps or compressors

|  | F01C 17/00 |
Arrangements for drive of co-operating members, e.g. for rotary piston and casing

|  | F01C 17/02 |
· | of toothed-gearing type

|  | F01C 17/04 |
· | of cam-and-follower type

|  | F01C 17/06 |
· | using cranks, universal joints, or similar elements

|  | F01C 19/00 |
Sealing arrangements in rotary-piston machines or engines (sealings in general Fulltext... Hierarchy... Expanded...F16J)

|  | F01C 19/02 |
· | Radially-movable sealings for working fluids

|  | F01C 19/04 |
· · | of rigid material

|  | F01C 19/06 |
· · | of resilient material

|  | F01C 19/08 |
· | Axially-movable sealings for working fluids

|  | F01C 19/10 |
· | Sealings for working fluids between radially and axially movable parts

|  | F01C 19/12 |
· | for other than working fluid

|  | F01C 21/00 |
Component parts, details, or accessories, not provided for in, or of interest apart from, other groups

|  | F01C 21/02 |
· | Arrangements of bearings (bearing constructions Fulltext... Hierarchy... Expanded...F16C)

|  | F01C 21/04 |
· | Lubrication (of machines or engines in general Fulltext... Hierarchy... Expanded...F01M)

|  | F01C 21/06 |
· | Heating; Cooling (of machines or engines in general Fulltext... Hierarchy... Expanded...F01P); Heat insulation (heat insulation in general Fulltext... Hierarchy... Expanded...F16L)

|  | F01C 21/08 |
· | Rotary pistons (reciprocating pistons in general Fulltext... Hierarchy... Expanded...F16J)

|  | F01C 21/10 |
· | Outer members for co-operation with rotary pistons; Casings (casings for rotary engines or machines in general Fulltext... Hierarchy... Expanded...F16M)

|  | F01C 21/12 |
· | Control of working-fluid admission or discharge (suitable for more general application Fulltext... Hierarchy... Expanded...F01L)

|  | F01C 21/14 |
· · | for variable fluid distribution

|  | F01C 21/16 |
· | Other regulation or control