49results about How to "Avoid covering up" patented technology

The present invention relates to a spark plug (10) and associated system for an internal combustion engine, comprising a center electrode (30) that reaches a first end surface (24) defined around a center shaft (14). The spark plug also has at least one outer electrode (22) up to the second end surface, the at least one outer electrode (22) partially surrounding the central electrode (30) at least laterally so that the second end surface is opposite to the second end surface. The central electrode (30) is radially offset to define a side gap (40) between the central electrode (30) and the at least one outer electrode (22). The spark plug (10) is characterized by forcing or redirecting the flow of a fresh air-fuel mixture through the side gap (40), helping to clear or remove residual exhaust gas left over from a previous combustion event out of the side gap.

The present invention provides an apparatus, method and system for reductant filtration, an exhaust gas treatment system for an internal combustion engine may have a reductant delivery system with a reductant tank. A filter module located within the reductant tank filters the reductant prior to delivery to the reductant pump for removal of impurities. To reduce airflow into the pump, the filter module may include an outlet port leading to the reductant pump and a vent port positioned above the outlet port so that air bubbles float toward the vent port before reductant enters the outlet port. The filter module is attachable to the tank level sensor assembly and is capable of venting gas to a gas storage area located above the reductant in the reductant tank. Such a filtration system may operate independently of any return lines that transport reductant back to the reductant tank.

The invention discloses an earphone loudness control method and device. The earphone loudness control method comprises the following steps of: picking up an ambient noise signal through a microphone of the earphone, and acquiring a first signal not subjected to noise reduction processing and a second signal subjected to noise reduction processing according to the ambient noise signal; monitoring ashort-term noise energy level in the environment according to the first signal. The output loudness of the headphone horn is adjusted according to the short-term noise energy level in the environment, the first signal and the second signal. The invention can correspondingly adjust the magnitude of the horn end signal according to the environmental noise situation of the near-end user, thereby improving the signal-to-noise ratio of the near-end user to listen to the far-end user information, avoiding the concealment of useful information and improving the call experience.

The present invention provides a device, method and system for diagnosing the performance of reductant delivery. An exhaust gas aftertreatment system for an internal combustion engine may have a reductant delivery system with a controller that performs a determination of the reductant delivery system Whether there is a staged diagnosis of blockage. The diagnostic process may include sampling first and second pressures at first and second operating conditions, respectively, and then comparing a first differential pressure between the first and second pressures to one or more threshold differential pressures to determine if system components such as dosing lines and injectors are at least partially clogged. If this test is inconclusive, it can be repeated at the third and fourth operating conditions to provide a second differential pressure. The offset between the first and second differential pressures can also be used to help diagnose where in the system a blockage is occurring.

The invention discloses a building viewing water curtain, which includes a water storage tank installed on the ground and a power control box. A curtain wall is vertically installed in the water storage tank, and a wall eaves are installed on the upper end of the curtain wall. A water storage tank is installed at the upper end of the left side, and a water pump is installed on the ground on the left side of the curtain wall. A water delivery pipe is installed between the water pump and the water storage tank. In the groove, a plurality of short tubes and a plurality of long tubes are installed against the upper ends of the left side and the right side of the curtain wall respectively. The invention forms a siphon in the water storage tank through long pipes, short pipes and circular grooves, drives the impeller and the rotating shaft to generate power through the siphon water flow, and uses the siphon power generation for projection equipment, solenoid valves and water level sensors, reducing the appearance of the water curtain. The power consumption of the movie, and due to the siphon phenomenon, the water pump only needs to pump the water into the water storage tank, which reduces the power consumption of the water pump and further reduces the power consumption of the water screen viewing.

An embodiment of the invention discloses a method and device for adjusting audio gains. The method includes: acquiring to-be-played audio and the gain of each audio frame in the to-be-played audio, and detecting the amplitude of environment noises; determining the amplification factor of the gain of each audio frame, wherein the amplification factor of the small gain of the audio frame is larger than the amplification factor of the large gain of the audio frame; amplifying and outputting each audio frame according the amplification factor of the gain of each audio frame. The method has the advantages that the to-be-played audio is adjusted by the amplification factor of the gain of each audio frame, the audio frames having different gains have different adjusting variables, the audio frames with small gains can be amplified according to the environmental noises, large change of the largest volume of the to-be-played audio is avoided, the audio frames with the small gains can be prevented from being covered by the environment noises, super-large volume which cannot be accepted by users is avoided, and user experience is enhanced.