30results about How to "Delayed ignition" patented technology

A circuit or combined ballast for driving a fluorescent lamp and at least one light emitting diode (LED) includes an integrated driver circuit having an alternating current (AC) circuit that includes at least one ballast coil for driving the fluorescent lamp and a direct current circuit for driving the LED having a secondary winding inductively coupled with the fluorescent lamp ballast coil for driving the LED. A method of driving a lamp assembly includes at least one fluorescent lamp and at least one light emitting diode (LED) and a combined driver circuit for supplying both the fluorescent lamp and the LED. The combined driver circuit supplies high voltage AC supply to a first portion of the driver circuit to the fluorescent lamp, supplies low voltage DC supply in a second portion of the driver circuit to the LED, and provides a secondary winding in the second portion of the driver circuit that is inductively coupled with a ballast coil in the first portion of the driver circuit that drives the fluorescent lamp.

The invention relates to the field of building materials, in particular to a fire retardant coating. The fire retardant coating comprises the following components in percentage by mass: 7 to 20 percent of cyanoethyl cellulose, 10 to 20 percent of fluoro ethylene-vinyl ether (FEVE) fluorocarbon resin, 10 to 15 percent of glass bead, 10 to 30 percent of pigment, 5 to 20 percent of ammonium polyphosphate, 3 to 8 percent of curing agent, 20 to 30 percent of phenol propane epoxy resin, and the balance of solvent. A product has good fireproof performance, and a wide application range, and is good in film property, and is suitable to be popularized and applied.

The invention discloses a universal booster capable of disengaging automatically without causing disturbance. The universal booster capable of disengaging automatically without causing disturbance comprises a rocket engine, a locking and unlocking device and a boosting frame, wherein the boosting frame is used for achieving the positioning function for the rocket engine and the locking and unlocking device, the rocket engine and the locking and unlocking device are fixed together and combined so as to bear the axial overload of the booster, and the boosting frame is connected with or separated from a carrier through the locking and unlocking device. The boosting frame is matched with a sleeve at the tail end of the carrier, an igniter is used for ignition, a grain is burnt and then generates thrust, a delayed gunpowder pipe is ignited at the same time, a powder flask of the locking and unlocking mechanism is ignited through the delayed gunpowder pipe after the whole grain is burnt out, a micro explosive reaction is generated in the powder flask, a push rod is pushed through a lead screw and a rotary disc to move, the push rod is pulled back in the radial direction of the rotary disc, the boosting frame and the carrier are not constrained any more, and the lead screw penetrates through a sealed bottom at the front end of the boosting frame and collides with the carrier, so that separation is achieved. After separation, a parachute placed in a frame groove of the boosting frame in advance is exposed and opened, and then recovery of the booster is achieved.

The invention relates to an environment-friendly nano fire-retardant coating which can be used on the surface of flammable base material, and can reduce the surface flammability of the material to be coated and retard the rapid spread of the fire so as to improve the fire endurance of the material to be coated. The fire-retardant coating is prepared by acrylic resin, polyphosphoric acid amine, nano SiO2, pentaerythritol, butanol and titanium dioxide according to ratio of parts by weight. The components are adjusted to the most scientific and reasonable state, a little nano-material is added, therefore the related properties and partial technical indexes of the fire-retardant coating such as fire retardance, antirust property, waterproofness, levelling property and strength are improved, the cost is low, the coating is uniform and continuous, compact and wear-resisting, the tenacity, dyeing property, adhesiveness, fast-drying nature and certain gloss of the coating are improved; and the nanotechnology is effectively combined with the formula and process of the coating, therefore the product quality is improved.

A system and method for controlling operation of an electric all-wheel drive hybrid vehicle includes driving a second motor-generator of a vehicle including an engine, an automatic transmission, and first and second motor-generators via a second set of wheels. dynamo. The method also includes determining a desired engine speed and transmission ratio. The method also includes starting the engine via the first motor-generator and locking all but one of the transmission torque-transmitting devices to be engaged required for the selected gear ratio. The method also includes modulating engagement of a remaining one of the plurality of torque devices while controlling the engine to produce a desired engine speed. Additionally, the method includes controlling the engine and first motor-generator such that their combined torque input is substantially zero; locking the remaining torque-transmitting devices to select a gear ratio; and controlling the engine to produce a desired transmission output torque.