Abstract:
A device which, when an engine is not yet running at a steady temperature, provides for the regulation of fuel-air ratio as a function of the engine temperature but independently of the flow rate of the air aspirated by the engine, by means of additional throttling means, upstream of the main throttling means. The additional throttling means are controlled by a device sensitive to the temperature of the running engine, so as to correspondingly adjust the density of the air aspirated by the engine only as a function of the engine temperature.
Abstract:
Changes in barometric pressure and/or temperature can adversely affect a number of engine functions. Apparatus is disclosed for controlling and modulating a number of engine functions, including carburetor idle fuel and main fuel supply, fuel enrichment during acceleration and wide open throttle operation, as well as vacuum applied to such vacuum motors associated with the engine as the carburetor choke, the spark advance and automatic transmission shift. Calibration features are provided for establishing a base condition of operation as well as individual calibration of all the various functions listed together with the ability to make base calibration changes by application of an external signal.
Abstract:
In providing a separate supply of fuel to an internal combustion engine when it is started up from a cold condition or as it idles following a cold start up, an additional supply of fuel is withdrawn from the engine carburetor float chamber and is passed through a valve operated fuel well into a fuel chamber. The fuel well is opened when the intake manifold of the engine is at atmospheric pressure for passing fuel into the fuel chamber. A fuel line connects the fuel chamber to the venturi tube for supplying fuel to the engine and a branch pipe, communicating with the fuel line, adds air to the fuel as it is directed into the venturi tube. The passage of fuel through the fuel line is discontinued in response to a temperature sensing arrangement which checks the engine temperature and, when a predetermined temperature level is reached, cuts off the flow through the fuel line to the venturi tube.
Abstract:
The carburetor has a conventional automatic choke construction heating a bimetallic coil by engine exhaust stove heat to permit the slow opening of the choke valve during cold weather starts; a supplemental temperature responsive power means at times overrides the bimetallic coil closing force to open the choke to various settings as a function of ambient temperature changes; and includes time delay means to provide a gradual actuation of the valve.
Abstract:
An automatic cold starting device for an internal combustion engine comprises, in an auxiliary passage leading into the main induction passage through which fuel/air mixture is normally supplied to the engine downstream of the main throttle valve, a second throttle valve and a fuel supply source controlled by a fuel valve, the second throttle valve and fuel valve being fully open when the engine is cold, being initially partly closed by suction in the auxiliary passage when the engine starts, and being then controlled for progressive further closing by a temperature sensitive device responsive to engine temperature.
Abstract:
A carburetor so constructed that a portion of a temperature detector which is displaced by a temperature change of an engine is mechanically connected to a fast idle cam by means of a cable to control the degree of opening of a choke valve by said cam and further the displacement of said fast idle cam is transmitted to a throttle valve through a link work, whereby the degree of opening of the throttle valve is automatically controlled according to the degree of opening of the choke valve without actuating an accelerator pedal.
Abstract:
Means responsive to the temperature of the engine are employed to adjust the flow of fuel in the carburetor to regulate the mixture during normal operation of the engine. In addition, means are preferably provided which also effect an automatic adjustment of the fuel flow to the engine in accordance with variations in atmospheric pressure such as occurs at different elevations.
Abstract:
An idling speed control system for an automotive gasoline powered internal combustion engine which system is adapted to vary the opening condition of a carburetor throttle valve in dependence on the variations in the atmospheric pressure. The idling speed control system includes a throttle opening device which is actuated by intake manifold vacuum for opening slightly the carburetor throttle valve during idling operation of the engine, a solenoid control valve for controlling the supply of intake manifold vacuum to the throttle opening device, and a vacuum level control device which is associated with the solenoid control valve and which is arranged to increase the level of the intake manifold vacuum supplied to the throttle opening device when the atmospheric pressure decreases below a predetermined level whereby the carburetor throttle valve is opened slightly more to provide the engine with an air-fuel mixture of proper air-fuel ratio.
Abstract:
A carburetor has a main throat, a separate constant level chamber for fuel, means to introduce liquid fuel into said constant level chamber, a separate injection chamber, a nozzle through which fuel passes from the constant level chamber to the injection chamber, a needle of variable cross section movable in that nozzle to vary the total cross section of said nozzle, and means by which the injection chamber communicates with the throat. A first lower cover plate has openings therethrough and a second upper cover plate has openings therein that communicate with the openings of the first cover plate. Some of the openings of the second cover plate are disposed in and extend laterally of the lower face thereof. An atmospheric pressure corrector is carried by the upper plate to open and close one of those openings according to atmospheric pressure. A fuel richness corrector operates through one of the openings to adjust the richness of the fuel mixture. An air inlet to the throat is formed on the second plate, and a control shutter is rotatably mounted in that inlet.
WHEREIN R1 AND R2 ARE HYDROGEN OR METHYL, R3 AND R4 ARE EACH AN INDEPENDENTLY SELECTED ALKYL GROUP HAVING FROM 1 TO 20 CARBON ATOMS, R5 IS THE ORGANIC RESIDUE EXCLUSIVE OF REACTIVE HYDROXYL GROUPS OF A POLYOL OF THE FORMULA:
(H(OCH2CHR7)Z)XN(R3)3-3
WHEREIN S IS AN INTEGER OF FROM 2 TO 3 INCLUSIVE, Z IS AN INTEGER OF FROM 1 TO 10 INCLUSIVE, R7 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND METHYL AND R3 IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND ALKYL OF FROM 1 TO 4 CARBON ATOMS, AND N AND M ARE POSITIVE INTEGERS INDEPENDENTLY SELECTED IN EACH CHAIN AND WHOSE SUM IS EACH CHAIN IS FROM 2 TO 20 ARE PREPARED BY SUCCESSIVELY REACTING BORIC ACID WITH A GLYCOL MONOETHER AND A POLYOL. THESE ESTERS ARE USEFUL AS STATBIZERS AND CORROSION INHIBITORS FOR LUBRICANTS AND NON-AQUEOUS HYDRAULIC FLUIDS.