Air valve sealing plugA seal (42) for an air valve having a valve shaft (32) rotatably carried in a bore (36) formed in a body (11) and a valve head (34) carried by the valve shaft (32) to control air flow through an air p…DRIVE·Mar 20·2 min readFollowF02D9/106WALBRO ENGINE MANAGEMENT LLC [US]
Engine kill-switch control circuit and method of operating the sameA kill-switch control circuit for use with a light-duty combustion engine determines whether to execute a controlled shut down method or an immediate shut down method in response to kill-switch activa…DRIVE·Apr 5·1 min readFollowF02D41/042WALBRO ENGINE MANAGEMENT LLC [US]
Independent timing retard for engine speed limitingA method and system for operating an engine wherein ignition of the engine is activated according to a predetermined timing schedule that references engine speed, and the ignition is suppressed above …DRIVE·Apr 5·1 min readFollowF02P9/005WALBRO ENGINE MANAGEMENT LLC [US]
Combustion engine pull-cord start systemA manual pull-cord start system of a combustion engine has a remote start assist device such as a choke (50) of a carburetor (34) or a compression relief valve that is automatically actuated upon the …DRIVE·Mar 29·1 min readFollowF02M1/02WALBRO ENGINE MANAGEMENT LLC [US]
CarburetorA carburetor (20) has an air intake passage (24), a fuel passage, a fuel nozzle (32) in communication with the fuel passage (30) and having an opening through which fuel flows, a first valve (28) in c…DRIVE·Oct 13·1 min readFollowF02M7/18WALBRO ENGINE MANAGEMENT LLC [US]
Carburetor air-fuel mixture adjustment assemblyAn apparatus (10) for adjusting the air-fuel ratio of a fuel mixture to be supplied to an engine. The apparatus (10) has a needle valve body (18) and a receptacle (12) formed in a main body of a carbu…DRIVE·Jan 14·2 min readFollowF02M19/04WALBRO ENGINE MANAGEMENT LLC [US]
Carburetor for a two-cycle scavenging engineA carburetor for a scavenged two-stroke internal combustion engine has an enriched fuel-and-air mixing passage (26) extending through a housing of the carburetor (10). Engaged to the housing is a body…DRIVE·Dec 3·2 min readFollowF02D9/106WALBRO ENGINE MANAGEMENT LLC [US]
Ignition timing control system for light duty combustion enginesA control system for a low cost, light duty combustion engine, where the control system generally utilizes an engine speed input signal and independent operating sequences to determine a desired ignit…DRIVE·Jan 22·2 min readFollowF02D35/0061WALBRO ENGINE MANAGEMENT LLC [US]
