F01L 1/25

Sub-Class

Watch

Stats

Description

Class  F01L : CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES


Subclass 1/25: Valve-gear or valve arrangements, e.g. lift-valve gear (lift valve and valve seat assemblies per seF01L 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) Adjusting or compensating clearance, i.e. lash adjustment automatically by fluid means, e.g. hydraulically Hydraulic tappets between cam and valve stem

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12247502 Multi-cylinder internal combustion engine, with cylinders equipped with intake valve variable actuation systems having hydraulic circuits which cross each otherNov 14, 22Mar 11, 25C.R.F. Società Consortile per Azioni
11692465 Internal combustion engine with fast combustion and method of control of such an engineAug 06, 20Jul 04, 23C.R.F. Societa Consortile per Azioni
11377985 Switching tappet or a roller finger follower for compression release brakingMar 11, 20Jul 05, 22Cummins Inc.
10690016 Engine valve lifter having anti-rotation plugAug 17, 18Jun 23, 20EATON INTELLIGENT POWER LIMITED
10344734 Determining sliding camshaft actuator pin position based on engine crankshaft angleJun 29, 17Jul 09, 19GM Global Technology Operations LLC
10260382 Valve bridge assemblyNov 09, 16Apr 16, 19EATON INTELLIGENT POWER LIMITED
10190446 Valve train assemblyNov 09, 16Jan 29, 19EATON INTELLIGENT POWER LIMITED
10156163 System and method for variable actuation of a valve of an internal-combustion engine, with a device for dampening pressure oscillationsSep 29, 16Dec 18, 18C.R.F. Societa Consortile per Azioni
10132208 Engine valve lifter oil flow control and anti-rotation featureJul 11, 16Nov 20, 18Eaton Corporation
10066518 Variable valve mechanism for internal combustion engineMay 24, 17Sep 04, 18Honda Motor Co. Ltd.
9920664 Actuator for an electrohydraulic gas-exchange valve train of a combustion engineJan 20, 15Mar 20, 18SCHAEFFLER TECHNOLOGIES AG & CO. KG
9650921 Centrifugal process to eliminate air in high pressure chamber of hydraulic lash adjusterJan 30, 14May 16, 17EATON CORPORATION
9512745 Valve bridgeJul 01, 13Dec 06, 16EATON SRL
9046009 Tappet for a valve train or a pump drive and method of making a tappetMay 28, 13Jun 02, 15SCHAEFFLER TECHNOLOGIES AG & CO. KG
8844480 Internal-combustion engine having a system for variable actuation of the intake valves, provided with three-way solenoid valvesAug 22, 12Sep 30, 14C.R.F. SOCIETA CONSORTILE PER AZIONI
6553950 Internal-combustion engine with variable-operation valves and auxiliary hydraulic tappetMar 22, 02Apr 29, 03C.R.F. SOCIETA CONSORTILE PER AZIONI
6170450 Hydraulic tappet with controlled lift lossOct 11, 99Jan 09, 01EATON CORPORATION

more results

Recent Publications

Not Available

Top Owners in This Subclass

Upgrade to the Professional Level to view Top Owners for this Subclass.Learn More

Patents Issued To Date - By Filing Year

Average Time to Issuance