Patents for F01L 1 - Valve-gear or valve arrangements, e.g. lift-valve gear (30,520)
03/1988
03/22/1988US4732119 Internal combustion engine
03/17/1988DE3630230A1 Hydraulic clearance adjusting element
03/15/1988US4730588 Valve operating system for an automotive engine
03/15/1988US4730581 Hollow cam shaft
03/10/1988WO1988001682A1 Reciprocatory machines
03/09/1988EP0259106A1 Valve operating apparatus in an internal combustion engine
03/09/1988EP0091944B1 Multiple concentric intake/exhaust valve system for an internal combustion engine
03/09/1988CN87105521A Method and apparatus for fixing section to hollow object
03/08/1988US4729350 Hydraulic valve clearance compensation apparatus for internal combustion engines
03/08/1988US4729349 Oil supply system for a valve operating mechanism in internal combustion engines
03/08/1988US4729348 Cylinder head structure for V-type engine
03/08/1988CA1233715A1 Lash adjuster with follower body retainer
03/08/1988CA1233714A1 Integral rocker arm hydraulic lifter and bearing assembly
03/03/1988DE3629609A1 Hydromechanical control of the valve opening times on internal combustion engines
03/02/1988EP0258061A1 Valve operating apparatus in an internal combustion engine
03/02/1988EP0257354A1 Self-adjusting hydraulic valve tappet
03/02/1988EP0257175A1 Method and device for the fixing of parts on a hollow body
03/02/1988CN87105815A Differential camshafts
03/01/1988US4727832 Roller rocker arm
03/01/1988US4727831 Valve operating mechanism for internal combustion engine
03/01/1988US4727830 Valve operating mechanism for internal combustion engine
03/01/1988US4727717 Exhaust gas cleaning system for multi-cylinder internal combustion engines
02/1988
02/25/1988WO1988001337A1 Differential camshaft
02/23/1988US4726332 Variable valve mechanism for internal combustion engines
02/23/1988US4726331 Means for variable valve timing for engine
02/18/1988DE3726083A1 Device for fixing parts on a hollow body
02/18/1988DE3627505A1 Self-adjusting hydraulic valve tappet
02/17/1988CN86105032A Arrangements for converting rotary motion to linear motion
02/16/1988US4725177 Retainer for preassembly of mechanical components
02/16/1988US4724822 Variable valve lift/timing mechanism
02/16/1988US4724805 Engine valve train module
02/16/1988US4724804 Engine valve train module
02/16/1988US4724803 Rolling contact rocker arm with reaction member, rocker key and roller follower
02/16/1988US4724802 Valve mechanism for an automotive engine
02/10/1988EP0255668A2 Hydraulic valve control device
02/09/1988US4723517 Cam drive mechanism
02/09/1988US4723516 Valve open duration and timing controller
02/09/1988US4723515 Mechanism utilizing a single rocker arm for controlling an internal combustion engine valve
02/04/1988DE3624612A1 Ventilsteuerung fuer eine hubkolben-brennkraftmaschine Control valve for a reciprocating internal combustion engine
02/04/1988DE3623238A1 Device for the preparation of essentially air-free lubricating oil
02/03/1988EP0254967A2 Hydraulic valve control device
02/03/1988CN87104987A Air valve of internal-combustion piston engines steering mechanism
02/02/1988US4722308 Engine with split crankshaft and crankshaft half disabling means
02/02/1988US4722306 Valve gear for four-cycle engine
01/1988
01/28/1988WO1988000644A1 Valve control for reciprocating piston internal combustion engine
01/28/1988WO1988000643A1 Camshaft and method for its production
01/27/1988EP0254058A2 Camshaft for controlling the gas inlet and exhaust valves of an internal-combustion engine
01/27/1988CN87104854A Camshaft and method for its production
01/27/1988CN85108161B Retainer for a hydraulic lash adjuster
01/26/1988USRE32582 Cylinder head fastening structure for internal combustion engines
01/26/1988US4721090 Blow-by gas recirculating apparatus
01/26/1988US4721076 Self-adjusting hydraulic valve tappet
01/26/1988US4721075 Diesel engine
01/26/1988US4721074 Engine valve train module
01/26/1988US4721007 Variable ratio lever arm mechanism
01/20/1988EP0253073A1 Method to produce means for preventing rotation for a roller tappet device of an internal-combustion engine
01/14/1988DE3623638A1 Self-adjusting hydraulic valve tappet
01/14/1988DE3622143A1 Sliding pair comprising a control cam and a valve actuating lever
01/14/1988DE3621478A1 Industrial engine
01/13/1988EP0252728A2 Metallic slide members to be used with ceramic slide members and sliding assemblies using the same
01/12/1988US4718952 Process for producing a remelted and chilled camshaft
01/12/1988US4718379 Rocker arm pivot assembly
01/07/1988EP0250797A2 Four-valve cylinder head of desmodromic operation, for internal combustion engines
01/07/1988EP0250781A2 Hydraulic force-transmitting element
01/07/1988EP0250397A1 Arrangements for converting rotary motion to linear motion
01/07/1988DE3720947A1 Camshaft arrangement
01/05/1988US4716867 Inner element for a hydraulic value compensation element
01/05/1988US4716866 Inner element for a hydraulic valve compensation element
01/05/1988US4716865 Inner element for a hydraulic compensation element
01/05/1988US4716864 Camshaft drive for an internal combustion engine
01/05/1988US4716861 4-Cycle engine
01/05/1988US4716720 Combustion engine with exterior combustion chamber
12/1987
12/29/1987US4715334 For use in the valve gear of an internal combustion engine
12/29/1987US4715333 Valve timing control means for engine
12/22/1987US4714059 Single overhead camshaft engine
12/17/1987WO1987007677A1 Variable actuator for a valve
12/17/1987DE3619956A1 Device for the automatic adjustment of the angle of rotation of a camshaft of internal combustion engines, especially for motor vehicles
12/16/1987EP0248836A1 Variable phase couplings
12/10/1987DE3623903C1 Device for the automatic tensioning of a chain
12/09/1987EP0248069A1 Delayed tension valves
12/08/1987US4711203 Timing case for a cylinder head of internal combustion engines having gas changing valves arranged essentially in parallel to one another
12/08/1987US4711202 For an internal combustion engine
12/03/1987WO1987007323A1 Engines for use with gaseous fuels
12/03/1987DE3618240A1 Lifting appliance
12/02/1987EP0247230A2 Cup-shaped tappet
12/02/1987EP0247034A1 Arrangements for converting rotary motion to linear motion
12/02/1987CN86103823A Variable rotary devices
12/01/1987US4709668 Self-adjusting hydraulic valve tappet
12/01/1987US4709667 Oil supply device for valve operating system having hydraulic tappet in internal combustion engine
11/1987
11/25/1987EP0246225A1 Variable rotary drives
11/24/1987US4708103 Hydraulic valve clearance compensation device
11/24/1987US4708102 Roller cam follower with positive lubrication
11/24/1987US4708101 Driving apparatus for intake and exhaust valves of internal combustion engine
11/24/1987US4708029 For use in an internal combustion engine
11/19/1987EP0245791A1 Device for the relative rotation of two shafts geared together,in particular a crankshaft and a camshaft borne in a machine sump
11/19/1987EP0245614A1 Poppet valve control device for a reciprocating piston internal-combustion engine
11/19/1987EP0245550A1 Cylinder head for an internal combustion engine
11/19/1987EP0245345A1 A variable drive mechanism
11/19/1987EP0245344A1 A variable drive assembly
11/17/1987US4706620 Automatic clearance adjuster