133 results about "Multi injection" patented technology

An injection quantity control system for an internal combustion engine stores a value Qb, which is a sum of an FCCB correction value and an ISC correction value corresponding to an injection frequency of K times per combustion in multi-injection in an idling stabile state of the engine. The system stores a value Qc, which is a sum of the FCCB correction value and the ISC correction value corresponding to the injection frequency of N times. Based on a difference between the values Qb and Qc, a final learning value (Q1 / K or Q1 / N) is calculated. Thus, an injector individual difference, an inter-cylinder injection quantity variation, and an injector aging deterioration quantity can be discriminated from an increase in an engine-demanded injection quantity due to an engine load factor.

An exhaust gas purification system (1) including a continuous regeneration-type DPF (13) and a DPF control (30c) is composed to perform an exhaust gas temperature raising control by multi-injection in the case where the collecting quantity (ΔPm) exceeds a first temperature rising judgment collecting quantity (ΔP01) lower than a predetermined collecting quantity (ΔP1) and, thereafter, to stop the exhaust gas temperature raising control by multi-injection in the case where the collecting quantity (ΔPm) becomes lower than a predetermined second temperature rising judgment collecting quantity (ΔP02) lower than the predetermined first temperature rising judgment collecting quantity (ΔP01).Thereby, frequency of the manual regeneration switch operation can be reduced remarkably, and the operability for a driver can be improved, in the exhaust gas purification system (1) prompting the driver to stop the vehicle and perform the forced regeneration by the manual regeneration switch, in the case of detecting that the detected collecting quantity (ΔPm) is higher than the predetermined judgment collecting quantity (ΔP1), concerning the regeneration of the continuous regeneration-type diesel particulate filter device (13).

An automatic switch includes a main body having connector ports provided thereon, more than one or two sets of cable-connected connectors directly extended from the main body, and a circuit board provided in the main body and electrically connected to the sets of cable-connected connectors via signal cables. The main body has an integral enclosure formed through multiple times of injection molding to include a circuit-protecting layer for enclosing the circuit board, an outer case enclosing the circuit-protecting layer, and an anti-slipping layer coating an outer surface of the outer case.

The present invention relates to a microneedle therapy system for skin care, hair loss treatment, obesity treatment, and the like. Provided is a multi-injection microneedle therapy system which implements a new treatment device and method capable of inserting a number of needles to create holes on the human skin and simultaneously inject drugs by using a gun, thereby significantly reducing a procedure time, minimizing pain, and increasing drug absorption efficiency to maximize treatment effectiveness. In addition, the multi-injection microneedle therapy system can perform microneedle therapy or mesotherapy treatment according to types of injected drugs and effectively perform the mesotherapy treatment by performing a number of injections for a short procedure time.

An injection ratio control system for an internal combustion engine performs a multi-injection, in which multiple pilot injections and a main injection are performed. The system prohibits a first injection among the pilot injections if a main injection quantity command value for the main injection is less than an N time(s) minimum guarantee determination value. An injection quantity for the first injection is added to the injection quantity for the main injection. Thus, the system controls an injection frequency per combustion in the multi-injection to prevent the use of a minute main injection quantity command value equal to or less than the N time(s) minimum guarantee determination value. As a result, the main injection is prevented from vanishing.

An electronic control unit of an accumulation type fuel injection system increases a number of injections performed by an injector in one injection period from a normal injection number if a pressure difference provided by subtracting target pressure from actual pressure is greater than a determination threshold and conditions for performing the injection are established, or if high-temperature combustion is predicted. If a normal injection mode is a main injection mode, it is changed to a pilot injection mode or a multi-injection mode. If the normal injection mode is the pilot injection mode, it is changed to the multi-injection mode. If the normal injection mode is the multi-injection mode, a number of minute injections is increased. Thus, combustion is slackened and noise caused by the high-temperature combustion can be alleviated.

The invention belongs to the field of pharmaceutical preparations, and relates to a long-acting sustained release preparation for preventing or treating retinal damage, and a preparation method thereof. The long-acting sustained release preparation takes erythropoietin (EPO) as an active component, takes dextran as a protective agent for the active component, and takes poly(lactic-co-glycolic acid), polylactic acid or polycaprolactone as a coating component to prepare sustained release microspheres, wherein the erythropoietin is coated by the poly(lactic-co-glycolic acid), polylactic acid or polycaprolactone. Proven by animal experiments, the sustained release microspheres of the long-acting sustained release preparation provided by the invention have the same protective actions on the ganglionic cells of damaged retinas by single vitreous chamber injection and repeated EPO protein vitreous chamber injection, and the sustained release microspheres are capable of avoiding a series of complications caused by many times of injection and overcoming the defects of repeated intraocular injection administration and gene therapy. The long-acting sustained release preparation provided by the invention adopts intraocular local administration, can reduce the dosage and treatment cost, and can not generate adverse effects on other organs or tissues in vivo.