ClassID:

137294

F01L7/026 - CPC Classification

Classification description:

Rotary or oscillatory slide valve-gear or valve arrangements with cylindrical, sleeve, or part-annularly shaped valves with two or more rotary valves, their rotational axes being parallel, e.g. 4-stroke

Recent Application in this class:
#1
20250334063
2025-10-30

COMBUSTION INJECTION AND CONTROL METHOD FOR ROTARY VALVE ENGINE

#2
20250334062
2025-10-30

FUEL INJECTED INDEPENDENT ROTARY VALVE ENGINE

#3
20220049634
2022-02-17

Head assembly with rotating valves for an internal combustion engine

#4
20200240297
2020-07-30

External heat source engine with slide valves

#5
20190234254
2019-08-01

Internal combustion engine with tubular valves and braking system

#6
20190078532
2019-03-14

Engine with rotating valve assembly

#7
20180306033
2018-10-25

Four-stroke rotary- piston engine with adjustable compression ratio and adjustable valve control times

#8
20170226903
2017-08-10

VALVE ARRANGEMENT FOR AN INTERNAL COMBUSTION ENGINE

#9
20170114678
2017-04-27

Rotary valve engine system

#10
20170096933
2017-04-06

Hybrid cycle combustion engine and methods

#11
20170022909
2017-01-26

Rotary valve engine

#12
20160222840
2016-08-04

Modular rotary valve apparatus

#13
20160222837
2016-08-04

Engine with rotary valve apparatus

#14
20150219227
2015-08-06

Pulse-width-regulating valve

#15
20150007793
2015-01-08

Hybrid cycle combustion engine and methods

#16
20130319354
2013-12-05

Two-stroke engine and related methods

#17
20130087117
2013-04-11

Head assembly for an internal combustion engine

#18
20120085311
2012-04-12

Valve system for piston engines

#19
20110209678
2011-09-01

INTERNAL COMBUSTION ENGINE WITH MODIFIED SHAFT

#20
20100258098
2010-10-14

Two-stroke engine and related methods

#21
20100036582
2010-02-11

Internal combustion engine camshaft scheduling strategy for maximum pumping loss reduction

#22
20090194058
2009-08-06

Cylindrical valve system

#23
20080236535
2008-10-02

Rotary valve for an internal combustion engine

#24
20080210311
2008-09-04

Mounting arrangement for a rotary valve

#25
20080202486
2008-08-28

Hybrid cycle combustion engine and methods

#26
20080163845
2008-07-10

Method for providing a mixture of air and exhaust

#27
20080156289
2008-07-03

Cylinder head for an internal combustion engine

#28
20080156287
2008-07-03

System for controlling fluid flow

#29
20070151538
2007-07-05

Rotary valve system and engine using the same

#30
20070151537
2007-07-05

Rotary valve system and engine using the same

#31
20070017477
2007-01-25

Rotary valve system and engine using the same

#32
20070017476
2007-01-25

Rotary valve system and engine using the same

#33
20070017204
2007-01-25

Internal combustion engine and method

#34
20070017203
2007-01-25

Internal combustion engine and method

#35
20070017202
2007-01-25

Internal combustion engine and method

#36
20070017201
2007-01-25

Internal combustion engine and method

#37
20070017200
2007-01-25

Internal combustion engine and method

#38
20070012291
2007-01-18

Internal combustion engine and method

#39
20070012024
2007-01-18

Internal combustion engine and method

#40
20070012023
2007-01-18

Internal combustion engine and method with improved combustion chamber

#41
20070012022
2007-01-18

Internal combustion engine and method with improved combustion chamber

#42
20070012021
2007-01-18

Internal combustion engine and method with improved combustion chamber

#43
20070012020
2007-01-18

Internal combustion engine and method with improved combustion chamber

#44
20060254554
2006-11-16

Rotary valve system and engine using the same

#45
20060254249
2006-11-16

Internal combustion engine and method with improved combustion chamber

#46
20060243229
2006-11-02

Internal combustion engine and method

#47
20060150930
2006-07-13

Four cycle, piston-driven, rotary ported intake and exhaust super atmospherically charged on demand internal combustion engine

#48
20060086335
2006-04-27

Internal combustion engines

#49
20050103303
2005-05-19

Cylinder head

#50
20050098138
2005-05-12

Diesel four cycle, 1 poppet valve, modified head, piston and valves

#51
19248571
2025-10-28

Fuel injected independent rotary valve engine

#52
19183677
2025-07-22

Independent rotary valve engine

#53
16659540
2020-09-08

Overhead sliding rotary valve assembly and method of use

#54
15406615
2019-07-09

Engine valve shaft with flow passages for intake and exhaust control