Assignee
SEMT
FR49 patents
Top patents by PatentIndex Score
US4424790AJan 10, 1984
Method of improving the efficiency of a supercharged diesel engine
SEMT163 citations97
US4561253ADec 31, 1985
Method of operating supercharged diesel engine with modified valve lift and bypassed intake air
SEMT101 citations95
US4404805ASep 20, 1983
Method of and system for power generation by supercharged internal combustion engine
SEMT71 citations95
US4161161AJul 17, 1979
Device for damping pressure waves in an internal combustion engine fuel injection system
SEMT43 citations92
US4288988ASep 15, 1981
Method and apparatus for improving the gas flow in an internal combustion engine exhaust manifold
SEMT44 citations91
US4232641ANov 11, 1980
Method and device for improving the efficiency of internal combustion engines
SEMT55 citations91
US4700672AOct 20, 1987
Two-fuel injector apparatus for an internal combustion engine
SEMT72 citations90
US4662319AMay 5, 1987
Structurally lightened piston utilizable especially in an internal combustion engine
SEMT71 citations86
US3977195AAug 31, 1976
Method for conditioning the intake air of a supercharged, low-compression ratio diesel engine
SEMT38 citations86
US4334409AJun 15, 1982
Device for recovering heat energy in a supercharged internal-combustion engine
SEMT58 citations85
US4196593AApr 8, 1980
Internal combustion engine supercharger set
SEMT67 citations85
US4122679AOct 31, 1978
Method and means for pre-heating the intake air of a supercharged, low-compression ratio diesel engine when operating at low load
SEMT52 citations85
US4106798AAug 15, 1978
Fluid-tight pipe coupling arrangement
SEMT44 citations85
US4226216AOct 7, 1980
Method of quick pneumatic braking of a diesel engine
SEMT28 citations82
US4120268AOct 17, 1978
Device for injecting water into the cylinders of an internal combustion engine, particularly for reducing the degree of pollution of the latter
SEMT24 citations82
US3963384AJun 15, 1976
Erosion-preventing device for a lift-and-force pump
SEMT20 citations82
US4513572AApr 30, 1985
Method of recovering energy in a power generator and power generator for carrying out the said method
SEMT31 citations80
US4096697AJun 27, 1978
Method and means for conditioning the intake air of a supercharged, low-compression ratio diesel engine
SEMT28 citations75
US4195610AApr 1, 1980
Method and device for stopping a fuel-injection internal combustion engine in case of overspeed
SEMT9 citations74
US4094465AJun 13, 1978
Method and device for obviating the risk of injection fuel leakage, more particularly into the cooling system of diesel engine injectors
SEMT14 citations74
US4363293ADec 14, 1982
Piston for a reciprocating piston machine, particularly an internal combustion engine
SEMT28 citations70
US4662321AMay 5, 1987
Method and apparatus for regulating the temperature of the inside surface of internal combustion engine cylinder liners
SEMT18 citations69
US4591321AMay 27, 1986
Method and apparatus for removing pressure peaks and damping hydraulic pressure waves and peaks from pressure variations in the feed ducts of a hydraulic pump and a pump for implementing the method
SEMT18 citations69
US4143319AMar 6, 1979
Method for magnetically determining the degree of wear of a piston ring of an internal combustion engine while reciprocating thereon
SEMT25 citations69
US4038558AJul 26, 1977
Electric power generating device fed with energy recovered from the exhaust gases of an internal combustion engine
SEMT20 citations69
US4008695AFeb 22, 1977
Cooled integral valve chest for an internal combustion engine and method for making same
SEMT9 citations69
US4327678AMay 4, 1982
Support device for the set of valve rockers of an internal combustion engine, particularly a large-size engine
SEMT11 citations67
US4182282AJan 8, 1980
Mushroom valve housing with fluid coolant circulation for internal combustion engines
SEMT19 citations67
US4147138AApr 3, 1979
Mushroom-type valve cooled by cooling fluid circulation
SEMT11 citations66
US4090819AMay 23, 1978
Fuel injection pump with cavitation preventing steps along the fuel return flow path
SEMT3 citations63
US4296715AOct 27, 1981
Apparatus for external cooling of an exhaust valve
SEMT2 citations60
US4038825AAug 2, 1977
Pneumatic method and device for diesel engine braking and restarting in the reverse direction
SEMT6 citations60
US3945356AMar 23, 1976
Cooled exhaust valve and methods of manufacture thereof
SEMT15 citations60
US4761993AAug 9, 1988
Method for monitoring the operation of an internal combustion engine
SEMT12 citations59
US4027365AJun 7, 1977
Method for removing and re-installing the crank-shaft of an internal combustion engine and device for carrying out the said method
SEMT14 citations59
US3961482AJun 8, 1976
Method and device for cleaning a supercharging set powering turbine driven by the exhaust gases of a heat engine
SEMT13 citations59
US4635595AJan 13, 1987
Starting method for internal combustion engine
SEMT8 citations58
US4550647ANov 5, 1985
Piston pin and piston, notably for an internal combustion engine, equipped with said pin
SEMT9 citations58
US4022294AMay 10, 1977
Device for lubricating the guiding system of an internal combustion engine valve
SEMT7 citations58
US4008981AFeb 22, 1977
Device for locating the position of the control rack of a pump and for locking the latter in disassembling position
SEMT4 citations58
US3963008AJun 15, 1976
Method of removing a valve mounted in an internal combustion engine cylinder-head and actuating device for carrying out the said method
SEMT2 citations58
US4341185AJul 27, 1982
Fluid-cooled valve housing for an engine having two exhaust valves per cylinder
SEMT2 citations56
US4583498AApr 22, 1986
Method of changing the direction of rotation of an internal combustion engine, and an engine applying the method
SEMT5 citations55
US4002087AJan 11, 1977
Machine crank-shaft with improved dynamic balance ratio
SEMT5 citations55
US4112883ASep 12, 1978
Internal combustion engine fit-up device
SEMT1 citations47
US4262638AApr 21, 1981
Mushroom valve with forced fluid cooling, in particular for an internal combustion engine
SEMT5 citations46
US4084410AApr 18, 1978
Flexible coupling device
SEMT6 citations46
US4016851AApr 12, 1977
Safety control method and device for limiting the temperature of a fluid to a given upper value
SEMT4 citations45
US4480792ANov 6, 1984
Fuel injector with gear-driven calibration of needle
SEMT1 citations44