WebCPC CPC COOPERATIVE PATENT CLASSIFICATION

F01B　MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES (of rotaty-piston or oscillating-piston type F01C; of non-positive-displacement type F01D; internal-combustion aspects of reciprocating-piston engines F02B 57/00, F02B 59/00; crankshafts, crossheads, connecting-rods F16C; flywheels F16F; gearings for interconverting rotary motion and reciprocating motion in general F16H; pistons, piston rods, cylinders, for engines in general F16J)

F01B 1/00 Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements (F01B 3/00, F01B 5/00 take precedence)

F01B 1/01 ・with one single cylinder

F01B 1/02 ・with cylinders all in one line

F01B 1/04 ・with cylinders in V-arrangement

F01B 1/06 ・with cylinders in star or fan arrangement

F01B 1/0603 ・・{the connection of the pistons with an element being at the outer ends of the cylinders}

F01B 1/0606 ・・・{with cam-actuated distribution member(s)}

F01B 1/061 ・・・{with two or more series radial piston-cylinder units}

F01B 1/0613 ・・・・{directly located side by side}

F01B 1/0617 ・・・・{coupling of several cylinders-barrels}

F01B 1/062 ・・{the connection of the pistons with an actuating or actuated element being at the inner ends of the cylinders}

F01B 1/0624 ・・・{with cam-actuated distribution member(s)}

F01B 1/0627 ・・・・{each machine piston being provided with channels, which are coacting with the cylinder and are used as a distribution member for another piston-cylinder unit}

F01B 1/0631 ・・・{the piston-driving or -driven cam being provided with an inlet or an outlet}

F01B 1/0634 ・・・{with two or more series radial piston-cylinder units}

F01B 1/0637 ・・・・{directly located side by side}

F01B 1/0641 ・・{Details, component parts specially adapted for such machines}

F01B 1/0644 ・・・{Pistons}

F01B 1/0648 ・・・{Cams}

F01B 1/0651 ・・・・{consisting of several cylindrical elements, e.g. rollers}

F01B 1/0655 ・・・{cylinders}

F01B 1/0658 ・・・{Arrangements for pressing or connecting the pistons against the actuating or actuated cam}

F01B 1/0662 ・・・・{hydraulically}

F01B 1/0665 ・・・{Disconnecting the pistons from the actuating or actuated cam (in general F01B 31/24)}

F01B 1/0668 ・・・{Supporting and guiding means for the piston}

F01B 1/0672 ・・・{Draining of the machinehousing; arrangements dealing with leakage fluid}

F01B 1/0675 ・・{Controlling}

F01B 1/0679 ・・・{by using a valve in a system with several pump or motor chambers, wherein the flow path through the chambers can be changed, e.g. series-parallel}

F01B 1/0682 ・・・{by changing the effective cross sectional piston working surface}

F01B 1/0686 ・・・{by changing the effective piston stroke}

F01B 1/0689 ・・・・{by changing the excentricity of one element relative to another element}

F01B 1/0693 ・・・{by changing the phase relationship between two actuating or actuated cams}

F01B 1/0696 ・・・{by changing the phase relationship between the actuating or actuated cam and the distributing means}

F01B 1/08 ・with cylinders arranged oppositely relative to main shaft and of "flat" type

F01B 1/10 ・with more than one main shaft, e.g. coupled to common output shaft (combinations of two or more machines or engines F01B 21/00)

F01B 1/12 ・Separate cylinder-crankcase elements coupled together to form a unit

F01B 3/00 Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis

F01B 3/0002 ・{having stationary cylinders}

F01B 3/0005 ・・{having two or more sets of cylinders or pistons}

F01B 3/0008 ・・{having self-acting distribution members, e.g. actuated by working fluid}

F01B 3/0011 ・・・{Cylindrical distribution members}

F01B 3/0014 ・・・{Conical distribution members}

F01B 3/0017 ・・{Component parts, details, e.g. sealings, lubrication}

F01B 3/002 ・・・{Cylinders}

F01B 3/0023 ・・・{Actuating or actuated elements}

F01B 3/0026 ・・・・{Actuating or actuated element bearing means or driving or driven axis bearing means}

F01B 3/0029 ・・・{Casings, housings}

F01B 3/0032 ・{having rotary cylinder block}

F01B 3/0035 ・・{having two or more sets of cylinders or pistons}

F01B 3/0038 ・・・{inclined to main shaft axis}

F01B 3/0041 ・・{Arrangements for pressing the cylinder barrel against the valve plate, e.g. fluid pressure}

F01B 3/0044 ・・{Component parts, details, e.g. valves, sealings, lubrication}

F01B 3/0047 ・・・{Particularities in the contacting area between cylinder barrel and valve plate}

F01B 3/005 ・・・・{Bearing arrangements}

F01B 3/0052 ・・・{Cylinder barrel}

F01B 3/0055 ・・・{Valve means, e.g. valve plate}

F01B 3/0058 ・・・・{Cylindrical valve means}

F01B 3/0061 ・・・・{Conical valve means}

F01B 3/0064 ・・・{Machine housing}

F01B 3/0067 ・・・・{cylinder barrel bearing means}

F01B 3/007 ・・・{Swash plate}

F01B 3/0073 ・・・・{swash plate bearing means or driving or driven axis bearing means}

F01B 3/0076 ・・{Connection between cylinder barrel and inclined swash plate}

F01B 3/0079 ・{having pistons with rotary and reciprocating motion, i.e. spinning pistons}

F01B 3/0082 ・{Details}

F01B 3/0085 ・・{Pistons}

F01B 3/0088 ・・・{Piston shoe retaining means}

F01B 3/0091 ・・{Casings, housings}

F01B 3/0094 ・・{Driving or driven means}

F01B 3/02 ・with wobble-plate

F01B 3/04 ・the piston motion being transmitted by curved surfaces

F01B 3/045 ・・{by two or more curved surfaces, e.g. for two or more pistons in one cylinder}

F01B 3/06 ・・by multi-turn helical surfaces and automatic reversal

F01B 3/08 ・・・the helices being arranged on the pistons

F01B 3/10 ・Control of working-fluid admission or discharge peculiar thereto (suitable for more general application F01L)

F01B 3/101 ・・{for machines with stationary cylinders}

F01B 3/102 ・・・{Changing the piston stroke by changing the position of the swash plate}

F01B 3/103 ・・{for machines with rotary cylinder block}

F01B 3/104 ・・・{by turning the valve plate}

F01B 3/105 ・・・{by moving the swash plate in a direction perpendicular to the axis of rotation of the cylinder barrel}

F01B 3/106 ・・・{by changing the inclination of the swash plate}

F01B 3/107 ・・・・{using wedges}

F01B 3/108 ・・・{by turning the swash plate (with fixed inclination)}

F01B 3/109 ・・・{by changing the inclination of the axis of the cylinder barrel relative to the swash plate (F01B 3/106 takes precedence)}

F01B 5/00 Reciprocating-piston machines or engines with cylinder axes arranged substantially tangentially to a circle centred on main shaft axis

F01B 5/003 ・{the connection of the pistons with an actuated or actuating element being at the outer ends of the cylinders}

F01B 5/006 ・{the connection of the pistons with an actuated or actuating element being at the inner ends of the cylinders}

F01B 7/00 Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders (in opposite arrangement relative to main shaft F01B 1/08)

F01B 7/02 ・with oppositely reciprocating pistons

F01B 7/04 ・・acting on same main shaft

F01B 7/06 ・・・using only connecting-rods for conversion of reciprocatory into rotary motion or vice-versa

F01B 7/08 ・・・・with side rods

F01B 7/10 ・・・・having piston-rod of one piston passed through other piston

F01B 7/12 ・・・using rockers and connecting-rods

F01B 7/14 ・・acting on different main shafts

F01B 7/16 ・with pistons synchronously moving in tandem arrangement

F01B 7/18 ・with differential piston (F01B 7/20 takes precedence)

F01B 7/20 ・with two or more pistons reciprocating one within another, e.g. one piston forming cylinder of the other

F01B 9/00 Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups (connections disengageable during idling F01B 31/24)

F01B 9/02 ・with crankshaft

F01B 9/023 ・・{of Bourke-type or Scotch yoke}

F01B 9/026 ・・{Rigid connections between piston and rod; Oscillating pistons}

F01B 9/04 ・with rotary main shaft other than crankshaft

F01B 9/042 ・・{the connections comprising gear transmissions}

F01B 9/047 ・・{with rack and pinion}

F01B 9/06 ・・the piston motion being transmitted by curved surfaces

F01B 9/08 ・・with ratchet and pawl

F01B 11/00 Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type

F01B 11/001 ・{in which the movement in the two directions is obtained by one double acting piston motor}

F01B 11/002 ・・{one side of the double acting piston motor being always under the influence of the fluid under pressure}

F01B 11/003 ・・・{the fluid under pressure being continuously delivered to one motor chamber and reacting the other chamber through a valve located in the piston, to bring the piston back in its start-position}

F01B 11/004 ・{in which the movement in the two directions is obtained by two single acting piston motors, each acting in one direction}

F01B 11/006 ・・{one single acting piston motor being always under the influence of the fluid under pressure}

F01B 11/007 ・{in which the movement in only one direction is obtained by a single acting piston motor, e.g. with actuation in the other direction by spring means}

F01B 11/008 ・・{with actuation in the other direction by gravity}

F01B 11/009 ・{in which the movement in two directions is obtained by two or more double acting piston motors}

F01B 11/02 ・Equalising or cushioning devices

F01B 11/04 ・Engines combined with reciprocatory driven devices, e.g. hammers (with pumps F01B 23/08; predominating aspects of driven devices, see the relevant classes for the devices)

F01B 11/06 ・・for generating vibration only

F01B 11/08 ・with direct fluid transmission link (F01B 11/02 takes precedence)

F01B 13/00 Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion (machines or engines of flexible-wall type F01B 19/00)

F01B 13/02 ・with one cylinder only

F01B 13/04 ・with more than one cylinder {(F01B 3/0032 takes precedence)}

F01B 13/045 ・・{with cylinder axes arranged substantially tangentially to a circle centred on main shaft axis}

F01B 13/06 ・・in star arrangement

F01B 13/061 ・・・{the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders}

F01B 13/062 ・・・・{cylinder block and actuating or actuated cam both rotating (F01B 13/064 and F01B 13/066 take precedence)}

F01B 13/063 ・・・・{with two or more series radial piston-cylinder units}

F01B 13/064 ・・・・・{cylinder block and actuating or actuated cam both rotating (F01B 13/066 takes precedence)}

F01B 13/065 ・・・・・{directly located side by side}

F01B 13/066 ・・・・・・{cylinder block and actuating or actuated cam both rotating}

F01B 13/067 ・・・・{with pistons and cylinders having two different parallel axis of rotation}

F01B 13/068 ・・・{the connection of the pistons with an actuated or actuating element being at the inner ends of the cylinders}

F01B 15/00 Reciprocating-piston machines or engines with movable cylinders other than provided for in group F01B 13/00(with movable cylinder sleeves for working fluid control F01L)

F01B 15/002 ・{having cylinders in star or fan arrangement, the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders}

F01B 15/005 ・{having cylinders in star or fan arrangement, the connection of the pistons with the actuated or actuating element being at the inner ends of the cylinders}

F01B 15/007 ・{having spinning cylinders, i.e. the cylinders rotating about their longitudinal axis}

F01B 15/02 ・with reciprocating cylinders (with one piston within another F01B 7/20)

F01B 15/04 ・with oscillating cylinder

F01B 15/06 ・・Control of working-fluid admission or discharge peculiar thereto

F01B 15/065 ・・・{by cam-actuated distribution members}

F01B 17/00 Reciprocating-piston machines or engines characterised by use of uniflow principle

F01B 17/02 ・Engines

F01B 17/022 ・・{with fluid heating}

F01B 17/025 ・・{using liquid air}

F01B 17/027 ・・{using separators}

F01B 17/04 ・・Steam engines

F01B 19/00 Positive-displacement machines or engines of flexible-wall type

F01B 19/02 ・with plate-like flexible members

F01B 19/04 ・with tubular flexible members

F01B 21/00 Combinations of two or more machines or engines (F01B 23/00 takes precedence; regulating or controlling, see the relevant groups; combinations of two or more pumps F04; fluid gearing F16H)

F01B 21/02 ・the machines or engines being all of reciprocating-piston type

F01B 21/04 ・the machines or engines being not all of reciprocating-piston type, e.g. of reciprocating steam engine with steam turbine

F01B 23/00 Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby (F01B 11/00 takes precedence; fluid gearing F16H; aspects predominantly concerning driven devices, see the relevant classes for these devices; regulating or controlling, see the relevant groups)

F01B 23/02 ・Adaptations for driving vehicles, e.g. locomotives (arrangements in vehicles, see the relevant classes for vehicles)

F01B 23/04 ・・the vehicles being waterborne vessels

F01B 23/06 ・Adaptations for driving, or combinations with, hand-held tools or the like

F01B 23/08 ・Adaptations for driving, or combinations with, pumps

F01B 23/10 ・Adaptations for driving, or combinations with, electric generators

F01B 23/12 ・Adaptations for driving rolling mills or other heavy reversing machinery

F01B 25/00 Regulating, controlling, or safety means (regulating or controlling in general G05)

F01B 25/02 ・Regulating or controlling by varying working-fluid admission or exhaust, e.g. by varying pressure or quantity (distributing or expansion valve gear F01L)

F01B 25/04 ・・Sensing elements

F01B 25/06 ・・・responsive to speed

F01B 25/08 ・・Final actuators

F01B 25/10 ・・・Arrangements or adaptations of working-fluid admission or discharge valves (valves in general F16K)

F01B 25/12 ・・Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted (sensing elements alone F01B 25/04; final actuators alone F01B 25/08)

F01B 25/14 ・・peculiar to particular kinds of machines or engines

F01B 25/16 ・Safety means responsive to specific conditions (against water hammer or the like in steam engines F01B 31/34)

F01B 25/18 ・・preventing rotation in wrong direction

F01B 25/20 ・Checking operation on safety devices

F01B 25/22 ・Braking by redirecting working-fluid

F01B 25/24 ・・thereby regenerating energy

F01B 25/26 ・Warning devices

F01B 27/00 Starting of machines or engines (starting combustion engines F02N)

F01B 27/02 ・of reciprocating-piston engines

F01B 27/04 ・・by directing working-fluid supply, e.g. by aid of by-pass steam conduits

F01B 27/06 ・・・specially for compound engines

F01B 27/08 ・・Means for moving crank off dead-centre (turning-gear in general F16H)

F01B 29/00 Machines or engines with pertinent characteristics other than those provided for in preceding main groups

F01B 29/02 ・Atmospheric engines, i.e. atmosphere acting against vacuum

F01B 29/04 ・characterised by means for converting from one type to a different one

F01B 29/06 ・・from steam engine into combustion engine

F01B 29/08 ・Reciprocating-piston machines or engines not otherwise provided for

F01B 29/10 ・・Engines (refrigeration machines F25B)

F01B 29/12 ・・・Steam engines (toy steam engines A63H 29/16)

F01B 31/00 Component parts, details, or accessories not provided for in, or of interest apart from, other groups (machine or engine casings, other than those peculiar to steam engines, F16M)

F01B 31/005 ・{Silencing equipment (silencing for steam engines F01B 31/16)}

F01B 31/02 ・De-icing means for engines having icing phenomena

F01B 31/04 ・Means for equalising torque in reciprocating-piston machines or engines (compensation of inertial forces, suppression of vibration in systems F16F)

F01B 31/06 ・Means for compensating relative expansion of component parts

F01B 31/08 ・Cooling of steam engines (cooling of fluid machines or engines in general F01P); Heating; Heat insulation (heat insulation in general F16L 59/00)

F01B 31/10 ・Lubricating arrangements of steam engines (of fluid machines or engines in general F01M)

F01B 31/12 ・Arrangements of measuring or indicating devices (warning apparatus F01B 25/26; measuring instruments or the like per se G01)

F01B 31/14 ・Changing of compression ratio

F01B 31/16 ・Silencers specially adapted for steam engines (arrangements of exhaust pipes or tubes on steam engines F01B 31/30; gas-flow silencers or exhaust silencers for machines or engines in general F01N)

F01B 31/18 ・Draining

F01B 31/20 ・・of cylinders

F01B 31/22 ・Idling devices, e.g. having by-passing valves

F01B 31/24 ・・Disengagement of connections between pistons and main shafts

F01B 31/26 ・Other component parts, details, or accessories, peculiar to steam engines

F01B 31/28 ・・Cylinders or cylinder covers

F01B 31/30 ・・Arrangements of steam conduits

F01B 31/32 ・・Arrangements or adaptations of vacuum breakers

F01B 31/34 ・・Safety means against water hammers or against the penetration of water (steam traps F16T)

F01B 31/36 ・・・automatically cutting-off steam supply

F01B 2003/00 Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis

F01B 2003/0082 ・{Details}

F01B 2003/0094 ・・{Driving or driven means}

F01B 2003/0097 ・・・Z-shafts, i.e. driven or driving shafts in Z-form

F01B 2009/00 Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups (connections disengageable during idling F01B 31/24)

F01B 2009/04 ・with rotary main shaft other than crankshaft

F01B 2009/042 ・・{the connections comprising gear transmissions}

F01B 2009/045 ・・・Planetary gearings

F01B 2009/06 ・・the piston motion being transmitted by curved surfaces

F01B 2009/061 ・・・by cams

F01B 2009/063 ・・・・Mono-lobe cams

F01B 2009/065 ・・・・Bi-lobe cams

F01B 2009/066 ・・・・Tri-lobe cams

F01B 2009/068 ・・・・Quadri-lobe cams

F01B 2011/00 Reciprocating-piston machines or engines without rotary main shaft, e.g. of free-piston type

F01B 2011/004 ・{in which the movement in the two directions is obtained by two single acting piston motors, each acting in one direction}

F01B 2011/005 ・・with oscillating pistons, i.e. the pistons are arranged in ring like cylinder sections and oscillate with respect to the center of the ring

F01B 2170/00 Steam engines, e.g. for locomotives or ships

F01B 2170/04 ・To-be-deleted with administrative transfer to parent group

F01B 2170/0405 ・・To-be-deleted with administrative transfer to parent group

F01B 2170/0411 ・・・for locomotives

F01B 2170/0417 ・・・for locomobiles driven by small motors

F01B 2170/0423 ・・・Single acting steam engines with 1, 2 or 3 cylinders

F01B 2170/0429 ・・・Double acting high pressure machines

F01B 2170/0435 ・・・Compound machines with double or plural expansion; Auxiliaries driven by main engine

F01B 2170/0441 ・・・Compound engines with monolytic pistons in same cylinder

F01B 2170/0447 ・・・Machines with more than one piston in a cylinder and with counter moving pistons

F01B 2170/0452 ・・・Engines without connecting rods

F01B 2170/0458 ・・・Moving cylinders for steam engines, e.g. with telescopic cylinder arrangements

F01B 2170/0464 ・・・Oscillating cylinders for steam engines

F01B 2170/047 ・・・mGeneral arrangements for steam engines

F01B 2170/0476 ・・・Components or parts for steam engines

F01B 2170/0482 ・・・with toroidal cylinder space

F01B 2170/0488 ・・・・To-be-deleted with administrative transfer to parent group

F01B 2170/0494 ・・・・・with fixed cylinder space

F01B 2250/00 Accessories of steam engines; Arrangements or control devices of piston pumps, compressors without crank shafts or condensors for so far as they influence the functioning of the engines

F01B 2250/001 ・Valves for steam inlet or outlet

F01B 2250/002 ・Valves, brakes, control or safety devices for steam engines

F01B 2250/003 ・Apparatus for control or receiver or condensor pressure

F01B 2250/004 ・Devices for draining or idling of steam cylinders or for uncoupling piston and connecting rod

F01B 2250/005 ・Oil separators for steam engines

F01B 2250/006 ・Arrangement of or controlling of piston pumps or compressors without crank shaft

F01B 2250/007 ・Condensing devices for steam engines

F01B 2250/008 ・Surface condensors for so far as they influence the functioning of the engine

F01B 2250/009 ・Condensor pumps for steam engines