摘要:
A carburetor substantially comprising rotary cam means (10) for controlling simultaneous displacement, according to predetermined laws, of the mixture supply throttle (5) and air supply throttle (6), from a first position, wherein the engine is cold started, to a second position wherein the engine is at normal running temperature; which cam means (10) are set manually to the first position, and to the second position by means of an actuator (42) comprising a wax capsule.
摘要:
An automatic choke apparatus for a carburetor includes an electric actuator, a choke valve opening/closing mechanism (19) configured to open and close a choke valve (14) by being driven by a power exerted by the electric actuator (17), and a controller (48) configured to control operation of the electric actuator. The controller (48), to which a battery (49) supplies electric power, operates the electric actuator (17) and the choke valve opening/closing mechanism (19) in order that, when the engine is stopped, the choke valve (14) is set in a semi-opened position and, when the engine starts to be cranked, the choke valve (14) is set in a fully-closed position. Accordingly, it is possible to prevent the choke valve (14) from freezing up in the fully-closed state in a case where the engine is stopped under an extremely low temperature environment.
摘要:
An automatic choke (240) connectable to an engine (100. Also disclosed is an engine (100) including the automatic choke (240), an apparatus including the engine (100) and the automatic choke (240), and a method of controlling a choke valve (115). The automatic choke (240) includes a motor (145) for moving a choke valve (115) and a controller (150) electrically connected to the motor (145). In one construction, the controller (150) is configured to store position information and a flag related to a position of the choke valve (115), determine the engine (100) has stopped, and control the automatic choke (240) with the stored position information based on the flag and the determination that the engine (100) has re-started. In another construction, the controller (150) is configured to generate a motor control signal to direct the choke valve (115) to a fully-open position without providing choke relief based on a temperature value indicating the engine temperature is greater than a threshold.
摘要:
A method of controlling a choke valve (240) of an engine (100) with a controller (150) is disclosed. Also disclosed is an automatic choke (240) performing the method, an engine (100) having the automatic choke (240), and an apparatus having the engine (100). The controller (150) includes an electronic circuit (210), such as a programmable device, and is coupled to a temperature sensor (170) and a motor (145). The method includes determining a temperature value using the temperature sensor (170), determining a time period to hold the choke valve (115) in a first position, keeping the choke valve (115) at the first position for the time period, moving the choke valve (115) from the first position toward a second position using the motor (145), determining a count to hold the choke valve (115), keeping the choke valve (115) at the second position for the count, and moving the choke valve (115) from the second position toward a fully open position.
摘要:
An autochoke controller which suppresses cost with the starting property upon a high-temperature reboot maintained favorably with a simple constitution without using an autochoke-only thermostat. An autochoke controller which has engine temperature sensing means (6, 61) connected to a control circuit (60) and the drive of which is controlled via the control circuit (60) according to an engine temperature comprises a self-holding circuit (64) which connect a switch sensing circuit (62) for sensing the on/off actions of a main switch (2) to the control circuit (60) and self-holds the power source of the control circuit (60) when the main switch (2) turns from on to off.
摘要:
In at least some embodiments, the present invention relates to an automatic choke system for use in an engine having a muffler and a choking mechanism that are located remotely apart from one another. The system includes a thermally responsive device, at least one component that serves to connect, at least in part, the device to the choking mechanism, and a further mechanism for conveying heat from the muffler to the device. Additionally, the system in at least one embodiment includes at least one of: (a) a pipe for conveying a fluid from a first location proximate the muffler to a second location proximate the device, the pipe being comprised within the further mechanism; and (b) a rotatable axle that spans a majority of a distance between the first location and a third location that is proximate the choking mechanism, the axle being comprised within the at least one component.