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

ENGINES AND PUMPS

|  | F03 |
MACHINES OR ENGINES FOR LIQUIDS (for liquids and gases Fulltext... Hierarchy... Expanded...F01; positive-displacement machines for liquids Fulltext... Hierarchy... Expanded...F04); WIND, SPRING, WEIGHT, OR MISCELLANEOUS MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR

|  | F03C |
POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS (positive-displacement engines for liquids and elastic fluids Fulltext... Hierarchy... Expanded...F01; positive-displacement machines for liquids Fulltext... Hierarchy... Expanded...F04; fluid-pressure actuators Fulltext... Hierarchy... Expanded...F15B; fluid gearing Fulltext... Hierarchy... Expanded...F16H)

|  | F03C |
Note(s) Attention is drawn to the notes preceding class Fulltext... Hierarchy... Expanded...F01, especially as regards the definition of "positive displacement".

|  | F03C 1/00 |
Reciprocating-piston engines

|  | F03C 1/02 |
· | of multi-cylinder type (with movable cylinders Fulltext... Hierarchy... Expanded...F03C 1/22; of flexible-wall type Fulltext... Hierarchy... Expanded...F03C 5/02)

|  | F03C 1/04 |
· · | with cylinders in star- or fan-arrangement

|  | F03C 1/06 |
· · | with cylinder axes coaxial with, or parallel or inclined to, main shaft axis

|  | F03C 1/08 |
· | Distributing valve-gear peculiar thereto (for engines with positive displacement in general Fulltext... Hierarchy... Expanded...F01L)

|  | F03C 1/10 |
· · | actuated by piston or piston-rod

|  | F03C 1/12 |
· · · | mechanically (Fulltext... Hierarchy... Expanded...F03C 1/18 takes precedence)

|  | F03C 1/14 |
· · · | by driving liquid of engine (Fulltext... Hierarchy... Expanded...F03C 1/18 takes precedence)

|  | F03C 1/16 |
· · · | Speed controlling, equalising, or cushioning

|  | F03C 1/18 |
· · · | with a common valve-gear for more than one cylinder

|  | F03C 1/20 |
· · · | specially for engines generating vibration only

|  | F03C 1/22 |
· | with movable cylinders

|  | F03C 1/24 |
· · | in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders

|  | F03C 1/26 |
· | adapted for special use or combined with apparatus driven thereby (aspects predominantly concerning the driven apparatus, see the relevant classes for such apparatus)

|  | F03C 3/00 |
Rotary-piston or oscillating-piston engines (in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders Fulltext... Hierarchy... Expanded...F03C 1/24)

|  | F03C 3/02 |
· | Oscillating-pistons

|  | F03C 5/00 |
Other engines

|  | F03C 5/02 |
· | of flexible-wall type