F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  
ENGINES AND PUMPS
 F01
MACHINES OR ENGINES IN GENERAL (combustion engines F02; machines for liquids F03, F04); ENGINE PLANTS IN GENERAL; STEAM ENGINES
 F01L
CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES (valves in general F16K)
 F01L

Note(s)

  1. Attention is drawn to the notes preceding class F01, especially Note 2 (b).
  2. As regards Note 2 (b), attention is drawn to F01B 3/10, F01B 15/06, F01C 21/12, F02B 53/06, F03C 1/08, F04B 1/18, F04B 7/00, F04B 39/08, F04B 39/10, and F04C 15/02, F04C 29/08.
 F01L 1/00 - 
F01L 13/00
Valve-gear for internal-combustion piston engines or for other machines or engines with positive working-fluid displacement (valve-gear specially for steam engines or specially for other machines or engines with variable fluid distribution F01L 15/00-F01L 35/00)
 F01L 1/00
Valve-gear or valve arrangements, e.g. lift-valve gear (lift valve and valve seat assemblies per se F01L 3/00; slide-valve gear F01L 5/00; actuated non-mechanically F01L 9/00; valve arrangements in working piston or piston-rod F01L 11/00; modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations F01L 13/00)
 F01L 1/02
·  Valve drive (transmitting-gear between valve drive and valve F01L 1/12)
 F01L 1/04
·  ·  by means of cams, camshafts, cam discs, eccentrics, or the like (F01L 1/10 takes precedence)
 F01L 1/06
·  ·  ·  the cams, or the like, rotating at a higher speed than that corresponding to the valve cycle, e.g. operating four-stroke engine valves directly from crankshaft
 F01L 1/08
·  ·  ·  Shape of cams
 F01L 1/10
·  ·  by means of crank- or eccentric-driven rods
 F01L 1/12
·  Transmitting-gear between valve drive and valve (simultaneously operating two or more valves F01L 1/26)
 F01L 1/14
·  ·  Tappets; Push-rods
 F01L 1/16
·  ·  ·  Silencing impact; Reducing wear
 F01L 1/18
·  ·  Rocking arms or levers
 F01L 1/20
·  Adjusting or compensating clearance
 F01L 1/22
·  ·  automatically, e.g. mechanically
 F01L 1/24
·  ·  ·  by fluid means, e.g. hydraulically
 F01L 1/26
·  characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift valves per cylinder (with coaxial valves F01L 1/28)
 F01L 1/28
·  characterised by the provision of coaxial valves; characterised by the provision of valves co-operating with both intake and exhaust ports
 F01L 1/30
·  characterised by the provision of positively opened and closed valves, i.e. desmodromic valves
 F01L 1/32
·  characterised by the provision of means for rotating lift valves, e.g. to diminish wear
 F01L 1/34
·  characterised by the provision of means for changing the timing of the valves without changing the duration of opening
 F01L 1/36
·  peculiar to machines or engines of specific type other than four-stroke cycle
 F01L 1/38
·  ·  for engines with other than four-stroke cycle, e.g. with two-stroke cycle (F01L 1/26, F01L 1/28 take precedence)
 F01L 1/40
·  ·  for engines with scavenging charge near top dead-centre position, e.g. by overlapping inlet and exhaust time (scavenging aspects F02B)
 F01L 1/42
·  ·  for machines or engines characterised by cylinder arrangement, e.g. star or fan
 F01L 1/44
·  Multiple-valve gear or arrangements, not provided for in preceding sub-groups, e.g. with lift and different valves
 F01L 1/46
·  Component parts, details, or accessories, not provided for in preceding sub-groups
 F01L 3/00
Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
 F01L 3/02
·  Selecting particular materials for valve members or valve seats; Valve members or valve seats composed of two or more materials
 F01L 3/04
·  ·  Coated valve members or valve seats
 F01L 3/06
·  Valve members or valve seats with means for guiding or deflecting the medium controlled thereby, e.g. producing a rotary motion of the drawn-in cylinder charge (for rotating lift valves F01L 1/32)
 F01L 3/08
·  Valve guides; Sealing of valve stem, e.g. sealing by lubricant
 F01L 3/10
·  Connecting springs to valve members
 F01L 3/12
·  Cooling of valves
 F01L 3/14
·  ·  by means of a liquid or solid coolant, e.g. sodium, in a closed chamber in a valve
 F01L 3/16
·  ·  by means of a fluid flowing through or along valve, e.g. air (for sealing only F01L 3/08)
 F01L 3/18
·  ·  ·  Liquid cooling of valve
 F01L 3/20
·  Shapes or constructions of valve members, not provided for in preceding sub-groups of this group
 F01L 3/22
·  Valve seats not provided for in preceding sub-groups of this group; Fixing of valve seats
 F01L 3/24
·  Safety means or accessories, not provided for in preceding sub-groups of this group
 F01L 5/00
Slide-valve gear or valve arrangements (with pure rotary or oscillatory movement F01L 7/00)
 F01L 5/02
·  with other than cylindrical, sleeve, or part-annularly-shaped valves, e.g. with flat-type valves
 F01L 5/04
·  with cylindrical, sleeve, or part-annularly-shaped valves
 F01L 5/06
·  ·  surrounding working cylinder or piston
 F01L 5/08
·  ·  ·  Arrangements with several movements or several valves, e.g. one valve inside the other (with part-annularly-shaped valves F01L 5/12)
 F01L 5/10
·  ·  ·  ·  with reciprocating and other movement of same valve
 F01L 5/12
·  ·  ·  Arrangements with part-annularly-shaped valves
 F01L 5/14
·  characterised by the provision of valves with reciprocating and other movements (surrounding working cylinder or piston F01L 5/06)
 F01L 5/16
·  ·  with reciprocating and other movement of same valve, e.g. longitudinally and in cross direction of working cylinder
 F01L 5/18
·  ·  with reciprocatory valve and other slide valve
 F01L 5/20
·  specially for two-stroke engines (F01L 5/06 and F01L 5/14 take precedence)
 F01L 5/22
·  Multiple-valve arrangements (with valves surrounding working cylinder or piston F01L 5/06; with reciprocatory and other slide valves F01L 5/18; specially for two-stroke engines F01L 5/20)
 F01L 5/24
·  Component parts, details, or accessories, not provided for in preceding sub-groups of this group
 F01L 7/00
Rotary or oscillatory slide-valve gear or valve arrangements (slide valves with combined rotary and non-rotary movements, combinations of rotary and non-rotary slide valves F01L 5/00)
 F01L 7/02
·  with cylindrical, sleeve, or part-annularly-shaped valves (of disc type F01L 7/06; of conical type F01L 7/08)
 F01L 7/04
·  ·  surrounding working cylinder or piston
 F01L 7/06
·  with disc-type valves
 F01L 7/08
·  with conically- or frusto-conically-shaped valves
 F01L 7/10
·  with valves of other specific shape, e.g. spherical
 F01L 7/12
·  specially for two-stroke engines (F01L 7/04 takes precedence)
 F01L 7/14
·  Multiple-valve arrangements (with valves surrounding working cylinder or piston F01L 7/04; specially for two-stroke engines F01L 7/12)
 F01L 7/16
·  Sealing or packing arrangements specially therefor
 F01L 7/18
·  Component parts, details, or accessories, not provided for in preceding sub-groups of this group
 F01L 9/00
Valve-gear or valve arrangements actuated non-mechanically
 F01L 9/02
·  by fluid means, e.g. hydraulic
 F01L 9/04
·  by electric means
 F01L 11/00
Valve arrangements in working piston or piston-rod
 F01L 11/02
·  in piston
 F01L 11/04
·  ·  operated by movement of connecting-rod
 F01L 11/06
·  ·  ·  operating oscillatory valve
 F01L 13/00
Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
 F01L 13/02
·  for reversing
 F01L 13/04
·  for starting by means of fluid pressure
 F01L 13/06
·  for braking
 F01L 13/08
·  for decompression, e.g. during starting; for changing compression ratio
 F01L 15/00 - 
F01L 31/00
Valve-gear or valve arrangements, e.g. with reciprocatory slide valves, specially for steam engines, or specially for other machines or engines with variable working-fluid distribution
 F01L 15/00 - 
F01L 31/00

Note(s)

The groups under this guide heading do not fully embrace subject-matter restricted to rotary, oscillatory, or valve-lift gear or valve arrangements, classified in groups F01L 33/00 and F01L 35/00. However, the present groups do embrace the following subject-matter thereof: valve drives or means external to valves for adjustment during operation, tripping-gear, reversing-gear, use of pistons or piston-rods as valves or as valve-supporting elements, valve-gear or valve arrangements peculiar to free-piston machines or engines.

 F01L 15/00
Valve-gear or valve arrangements, e.g. with reciprocatory slide valves, other than provided for in groups F01L 17/00-F01L 29/00 (valve drive or external valve-adjustment during operation, see the relevant groups, e.g. F01L 31/00; tripping-gear or tripping of valves F01L 31/00)
 F01L 15/02
·  with valves other than cylindrical, sleeve, or part-annularly-shaped, e.g. flat D-valves
 F01L 15/04
·  ·  main valve being combined with auxiliary valve (of drag-valve type F01L 15/10)
 F01L 15/06
·  ·  ·  of Meyer or Rider type, i.e. in which the expansion is varied at the expansion valve itself
 F01L 15/08
·  with cylindrical, sleeve, or part-annularly-shaped valves; Such main valves combined with auxiliary valves
 F01L 15/10
·  with main slide valve and auxiliary valve dragged thereby
 F01L 15/12
·  characterised by having means for effecting pressure equilibrium between two different cylinder spaces at idling
 F01L 15/14
·  Arrangements with several co-operating main valves, e.g. reciprocatory and rotary
 F01L 15/16
·  ·  with reciprocatory slide valves only
 F01L 15/18
·  Valve arrangements not provided for in preceding sub-groups of this main group
 F01L 15/20
·  Component parts, details, or accessories, not provided for in preceding sub-groups of this main group
 F01L 17/00
Slide-valve gear or valve arrangements with cylindrical, sleeve, or part-annularly-shaped valves surrounding working cylinder or piston
 F01L 17/02
·  Drive, or adjustment during operation, peculiar thereto, e.g. for reciprocating and oscillating movements or for several valves one inside the other
 F01L 19/00
Slide-valve gear or valve arrangements with reciprocatory and other movement of same valve, other than provided for in group F01L 17/00, e.g. longitudinally of working cylinder and in cross direction
 F01L 19/02
·  Drive, or adjustment during operation, peculiar thereto
 F01L 21/00
Use of working pistons or piston-rods as fluid-distributing valves or as valve-supporting elements, e.g. in free-piston machines
 F01L 21/02
·  Piston or piston-rod used as valve member
 F01L 21/04
·  Valves arranged in or on piston or piston-rod
 F01L 23/00
Valves controlled by impact of piston, e.g. in free-piston machines
 F01L 25/00
Drive, or adjustment during operation, of distribution or expansion valves by non-mechanical means
 F01L 25/02
·  by fluid means
 F01L 25/04
·  ·  by working fluid of machine or engine, e.g. free-piston machine
 F01L 25/06
·  ·  ·  Arrangements with main and auxiliary valves, at least one of them being fluid-driven
 F01L 25/08
·  by electric or magnetic means
 F01L 27/00
Distribution or expansion-valve gear peculiar to free-piston machines or engines and not provided for in groups F01L 21/00-F01L 25/00
 F01L 27/02
·  the machine or engine having rotary or oscillatory valves
 F01L 27/04
·  Delayed-action controls, e.g. of cataract- or dash-pot-type
 F01L 29/00
Reversing-gear (equally usable for control of degree of working fluid admission, and reversing being of secondary importance F01L 31/00)
 F01L 29/02
·  by displacing eccentric
 F01L 29/04
·  by links or guide rods
 F01L 29/06
·  by interchanging inlet and exhaust ports
 F01L 29/08
·  specially for rotary or oscillatory valves
 F01L 29/10
·  Details, e.g. drive
 F01L 29/12
·  ·  Powered reverse gear
 F01L 31/00
Valve drive, valve adjustment during operation, or other valve control, not provided for in groups F01L 15/00-F01L 29/00 (sensing elements measuring the variable or condition to be controlled or regulated F01B)
 F01L 31/02
·  with tripping-gear (for oscillatory valves F01L 31/06); Tripping of valves
 F01L 31/04
·  ·  with positively-driven trip levers
 F01L 31/06
·  with tripping-gear specially for oscillatory valves; Oscillatory tripping-valves, e.g. of Corliss type
 F01L 31/08
·  Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear
 F01L 31/10
·  ·  the drive being effected by eccentrics (F01L 31/14 takes precedence)
 F01L 31/12
·  ·  ·  Valve adjustment by displacing eccentric
 F01L 31/14
·  ·  Valve adjustment by links or guide rods, e.g. in valve-gears with eccentric drive
 F01L 31/16
·  ·  the drive being effected by specific means other than eccentric, e.g. cams; Valve adjustment in connection with such drives
 F01L 31/18
·  ·  specially for rotary or oscillatory valves
 F01L 31/20
·  ·  ·  Valve adjustment
 F01L 31/22
·  ·  specially for lift valves
 F01L 31/24
·  ·  ·  Valve adjustment
 F01L 33/00 - 
F01L 35/00
Rotary or oscillatory slide-valve gear or lift-valve gear or such valve arrangements specially for steam engines or specially for other machines or engines with variable working-fluid distribution (drive, adjustment during operation, tripping-gear, reversing-gear, use of working pistons or piston-rods as valves or as valve-supporting elements, valve-gear or valve arrangements peculiar to free-piston machines or engines F01L 15/00-F01L 31/00)
 F01L 33/00
Rotary or oscillatory slide-valve gear or valve arrangements
 F01L 33/02
·  rotary
 F01L 33/04
·  oscillatory
 F01L 35/00
Lift-valve gear or valve arrangements
 F01L 35/02
·  Valves
 F01L 35/04
·  Arrangements of valves in the machine or engine, e.g. relative to working cylinder