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
3
/
02
•
Selecting particular materials for valve members or valve seats; Valve members or valve seats composed of two or more materials
3
/
04
•
•
Coated valve members or valve seats
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 F 01 L 1/32)
3
/
08
•
Valve guides; Sealing of valve stem, e.g. sealing by lubricant
3
/
10
•
Connecting springs to valve members
3
/
12
•
Cooling of valves
3
/
14
•
•
by means of a liquid or solid coolant, e.g. sodium, in a closed chamber in a valve
3
/
16
•
•
by means of a fluid flowing through or along valve, e.g. air (for sealing only F 01 L 3/08
)
3
/
18
•
•
•
Liquid cooling of valve
3
/
20
•
Shapes or constructions of valve members, not provided for in preceding subgroups of this group
3
/
22
•
Valve seats not provided for in preceding subgroups of this group; Fixing of valve seats
3
/
24
•
Safety means or accessories, not provided for in preceding subgroups of this group
5
/
00
Slide-valve gear or valve arrangements (with pure rotary or oscillatory movement F 01 L 7/00)
5
/
02
•
with other than cylindrical, sleeve, or part-annularly-shaped valves, e.g. with flat-type valves
5
/
04
•
with cylindrical, sleeve, or part-annularly-shaped valves
5
/
06
•
•
surrounding working cylinder or piston
5
/
08
•
•
•
Arrangements with several movements or several valves, e.g. one valve inside the other (with part-annularly-shaped valves F 01 L 5/12)
5
/
10
•
•
•
•
with reciprocating and other movement of same valve
5
/
12
•
•
•
Arrangements with part-annularly-shaped valves
5
/
14
•
characterised by the provision of valves with reciprocating and other movements (surrounding working cylinder or piston F 01 L 5/06)
5
/
16
•
•
with reciprocating and other movement of same valve, e.g. longitudinally and in cross direction of working cylinder
Multiple-valve arrangements (with valves surrounding working cylinder or piston F 01 L 5/06; with reciprocatory and other slide valves F 01 L 5/18; specially for two-stroke engines F 01 L 5/20)
5
/
24
•
Component parts, details, or accessories, not provided for in preceding subgroups of this group
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 F 01 L 5/00)
7
/
02
•
with cylindrical, sleeve, or part-annularly-shaped valves (of disc type F 01 L 7/06; of conical type F 01 L 7/08)
7
/
04
•
•
surrounding working cylinder or piston
7
/
06
•
with disc-type valves
7
/
08
•
with conically- or frusto-conically-shaped valves
7
/
10
•
with valves of other specific shape, e.g. spherical
7
/
12
•
specially for two-stroke engines (F 01 L 7/04 takes precedence)
7
/
14
•
Multiple-valve arrangements (with valves surrounding working cylinder or piston F 01 L 7/04; specially for two-stroke engines F 01 L 7/12)
7
/
16
•
Sealing or packing arrangements specially therefor
7
/
18
•
Component parts, details, or accessories, not provided for in preceding subgroups of this group
