32results about How to "Eliminate running noise" patented technology

An engine ECU executes a program including the steps of: detecting an engine speed NE, engine load, and engine coolant temperature (S100, S110, S115); when determination is made of being in an idle region (YES at S120), determining whether in a cold idle region, a transitional region, or a warm idle region (S130); injecting fuel from an intake manifold injector alone when in the cold idle region (S140); injecting fuel from the intake manifold injector and injecting fuel from an in-cylinder injector at the feed pressure when in the transitional region (S150); and injecting fuel from the in-cylinder injector at the feed pressure when in the warm idle region (S160).

In association with a solenoidal coil 10 being energized to unlock a shift lever 1C, a first movable core 9 and a second movable core 11 magnetically stick together so as to rotationally move in unison from an original position in which the first movable core 9 engages with the second movable core 11. Because the first movable core 9 and the second movable core 11 stick together before unlocking the shift lever 1C, it is possible to avoid the first movable core 9 from hitting the second movable core 11 so as to eliminate an operational noise. A lock plate 7 and a link plate 8 are rotatably provided around a rotational center 6 in relative to the solenoidal coal 10. This prevents the lock plate 7 and the link plate 8 from moving rotationally in unison with the solenoidal coil 10 so as to insure a smooth and quick rotational movement.

The invention provides a split type high-speed starter-generator with position feedback which comprises a stator and a rotor. The stator and the rotor form a brushless motor; the stator is fixed at acasing spigot end of a micro-gas turbine; the front end of a rotating shaft of the rotor penetrates into the micro-gas turbine and is fixed by a bearing; the end part of the micro-gas turbine is fixedby a baffle around the rotating shaft; the rotating shaft and the baffle are matched to form a dynamic sealing structure; and the rotating shaft is butted with a transmission shaft of the micro-gas turbine to realize torque transmission. According to the invention, the volume and the weight of a starter-generator system are effectively reduced; the volume of the starter-generator of 1.6 kW in thetraditional scheme is reduced from phi 120 * 200 to phi 85 * 93, and the weight is reduced from 9.8 kg to 1.9 kg; speed reducers are omitted, and thus friction loss and operation noise between the speed reducers are eliminated; and the transmission efficiency is improved.

A controller has a state observation unit to acquire a present state of a robot as a state variable, a label data acquisition unit to acquire, as a label, a detected value of a force sensor attached to an arm and to detect necessary data for control of a pressing force, and a learning unit to generate a learning model indicative of the correlation between the state variable acquired in a no-load state and the label acquired under the state variable acquired in the no-load state and to estimate the detected value of the force sensor. The controller controls the pressing force by using the detected value of the force sensor acquired in the present state of the robot acquired in a loaded state and the detected value of the force sensor estimated by the learning unit based on the present state of the robot acquired in the loaded state.

A swing arm cam type two-stroke straight-shaft internal combustion engine, which is a further improvement on the basis of the 346 swing arm two-stroke straight-shaft internal combustion engine. It consists of a single-track elliptical cam on the straight shaft and a single arc slide on the swing arm Coordination replaces the complex operation mode of 346 swing arm double rails connecting and cooperating with each other. The machine runs in continuous contact during one revolution, the operation stability of the machine is increased and the operation noise is completely eliminated. The manufacturing process of the core components of the machine is greatly simplified. The manufacturing cost is further greatly reduced, the force arm of the elliptical cam is further lengthened, and the mechanical efficiency is further improved. At the same time, for 4 models in the one-unit series and 3 models in the two-unit series, the improvement of the single-track elliptical cam and the single-arc slideway swing arm has been made. Compared with the internal combustion engine with the same volume crankshaft, the mechanical efficiency is increased by 3-6 times, and the weight of the machine body is reduced by 3-6 times.

The invention discloses a thermosensitive ceramic heater combination comprising mounting sheet metal. The mounting sheet metal is provided with corresponding mounting holes connected with the whole combination and matching with mounting support fitting holes; the mounting sheet metal is further provided with an insulating positioning junction box. The invention further discloses a heater of the thermosensitive ceramic heater combination, a production process of the heater and a mounting support of the heater. Through the process design wherein heat transfer pipes are subjected to gradual rolling and non-heat conductive faces are subjected to positioning and clamping, and through the structural design of positioning wheels, operational noise of the heater is eliminated. Through the design where incoming and outgoing power leads of the heater are all gathered to the positioning junction box located on the mounting sheet metal, electric connection reliability is improved, and reasonable wiring, electric connection safety and reliability and compact structure are achieved. Meanwhile, the mounting support helps greatly improve connection reliability and application safety of a heating rod and a connecting wire set of the heater. The thermosensitive ceramic heater combination, the heater and the mounting support have the advantages that manufacturing cost is greatly reduced and production efficiency is improved.