Class / Patent application number | Description | Number of patent applications / Date published |
123363000 | Mechanical sensor or regulator | 11 |
20140053806 | FOUR-CYLINDER IN-LINE ENGINE WITH PARTIAL SHUTDOWN AND METHOD FOR OPERATING SUCH A FOUR-CYLINDER IN-LINE ENGINE - An engine method, comprising turning off a second cylinder group in response to engine load falling below a first threshold, the second cylinder group including a first outer most cylinder and its immediately adjacent cylinder and turning on the second cylinder group in response to engine load raising above a second threshold and operating a first cylinder group constantly throughout engine operation; the first cylinder group including a second outer most cylinder and its immediately adjacent cylinder. By this method, engine efficiency may increase during partial load operating conditions from low engine loads. | 02-27-2014 |
20140150749 | CONTROL SYSTEM FOR ENGINE - A control system for an engine including a fuel delivery system and an ignition source is provided. The control system includes a detector, a processor, and at least one actuator. The detector is configured to sense a signal to change from a compression ignited fuel to a spark ignited fuel. The processor is configured to receive the signal from the detector and generate an actuation signal. The actuator is configured to receive the actuation signal, vary an operating speed of the engine, and selectively control at least one of the fuel delivery system and the ignition source. | 06-05-2014 |
123364000 | Fuel injection pump governor (e.g., diesel) | 2 |
20140060487 | UTILITY VEHICLE HORSEPOWER MANAGEMENT - Disclosed are horsepower management systems and methods for use on power machines with an engine that powers a drive system. An engine speed control device controls the engine speed. A variable displacement drive pump controlled by a displacement control member provides pressurized fluid to a drive motor. A control system communicates with the engine speed control device and the pump displacement control member. The control system includes a user input device and a command lever rotatably coupled to the displacement control member and capable of receiving the user input. The command lever provides a signal to the engine speed control device in response to the user input. The command lever also commands a given displacement via the displacement control member subject to load forces on the hydrostatic pump transmitted to a limiting mechanism coupled to the command lever and the displacement control member. | 03-06-2014 |
20150027406 | ADJUSTABLE FUEL TRIM MODULE FOR DIESEL ENGINE - An adjustment mechanism for allowing fine-tuning the amount of fuel to a Diesel engine by an operator of the engine is provided. A module conveniently within reach of the operator of the engine allows the operator to tune the engine independent of any throttle setting while the engine is operating. In one embodiment for an electronically controlled Diesel engine, an electrical input representative of barometric pressure to an electronic engine controller is modified to be under control of the operator, who can adjust the input independent of the throttle to vary injected quantities of fuel according to the instant conditions under which the engine is operating. | 01-29-2015 |
123376000 | Throttle positioning | 7 |
20080223336 | ENGINE CONTROL SYSTEM - An engine control device includes a governor lever, a centrifugal governor, a control lever operated to oscillate between a low-speed position and a high-speed position, and a governor spring expandedly provided between the control lever and the governor lever. An automatic choke device is connected to a choke valve of a carburetor. A play is provided between the governor lever and the governor spring. The play holds the governor spring in a free state during rotation of the control lever from the low-speed position to the high-speed position by a predetermined angle. A subsidiary spring is provided between a fixed structure and the governor lever so as to constantly urge the governor lever in a direction to open the throttle valve. A spring constant of the subsidiary spring is smaller than that of the governor spring. Thus, there is provided the engine control system with the automatic choke device, which can meticulously control an air/fuel ratio from start of an engine to under-load operation of the engine in accordance with increase and decrease in temperature of the engine. | 09-18-2008 |
20110214641 | THROTTLE AUTO IDLE WITH BLADE BRAKE CLUTCH - Systems, devices, and methods are disclosed for automatically adjusting a speed of an engine in response to the loading on the engine. In particular, an automatic idle system and method can comprise a governor linkage with a first end for connection to the rotatable shaft of an engine governor and a second end for connection to a throttle control of the engine, and an actuator connected to the second end of the governor linkage. The actuator can be movable in response to a load on the engine to move the governor linkage from a base position to an adjusted position. In this arrangement, when the engine is in a low-load state, the governor linkage can be moved toward a throttle-closed position. | 09-08-2011 |
20110226217 | ENGINE SPEED CONTROL SYSTEM - An engine includes a throttle assembly, a governor, and an actuator. The throttle assembly is designed to at least partially control a fuel flow rate of the engine. The governor is designed to sense a speed of the engine and at least partially control the throttle assembly as a function of the engine speed. The actuator is designed to sense a manifold vacuum pressure of the engine and at least partially control the throttle assembly as a function of the vacuum pressure. | 09-22-2011 |
20120304963 | ENGINE SPEED CONTROL SYSTEM - An engine includes a carburetor, a governor assembly, and a vacuum actuator. The carburetor includes a throttle plate configured to control a fluid flow, a throttle lever coupled to the throttle plate, and an intake port in fluid communication with an engine vacuum pressure. The governor assembly includes a governor, a governor linkage coupled to the governor and the throttle lever, and a governor spring coupled to the throttle lever to bias the throttle plate towards the fully open position. The vacuum actuator includes an actuator housing, a pressure-sensitive member positioned in the actuator housing, an actuator linkage directly coupled to the governor spring and also coupled to the pressure-sensitive member for movement in response to the engine vacuum pressure, and an actuator spring coupled between a fixed attachment point and the actuator linkage to bias the actuator linkage to increase the tension on the governor spring. | 12-06-2012 |
20140216399 | METHODS FOR ADJUSTING ENGINE THROTTLE ON VEHICLE WITH GENERATOR - A method is performed by a controller on a vehicle. The method includes determining a rotational speed of a crankshaft of an internal combustion engine of the vehicle. In response to confirming occurrence of at least one first condition, the controller determines whether the rotational speed is within a first range. Upon determination by the controller that the rotational speed of the crankshaft is within the first range, the controller initiates engagement of a clutch to result in coupling of the crankshaft with a rotor of a generator. While the clutch is engaged, the controller determines whether the rotational speed of the crankshaft is within a second range. The controller adjusts the throttle of the internal combustion engine upon determination by the controller that the rotational speed of the crankshaft is not within the second range, to bring the rotational speed of the crankshaft into the second range. | 08-07-2014 |
20150020773 | STOP CONTROL APPARATUS FOR INTERNAL COMBUSTION ENGINE - A stop control apparatus ( | 01-22-2015 |
20150047604 | ENGINE-POWERED WORK TOOL PROVIDED WITH WIND GOVERNOR - An engine-powered work tool includes an engine having a crank shaft, an output controller and a wind governor. The output controller includes an output control shaft angularly rotatable about its axis for controlling a rotation speed of the crank shaft. The wind governor can control the angular rotation of the output control shaft and includes: a governor plate for receiving cooling air generated at a cooling fan connected to the crank shaft; an arm fixed to the output control shaft; and a governor spring connected to the arm for biasing the output control shaft to increase the rotation speed of the crank shaft. The governor plate functions to bias the output control shaft to decrease the rotation speed of the crank shaft upon receipt of the cooling air. The governor spring has an end changeable in position relative to the output controller among a plurality of prescribed positions. | 02-19-2015 |