摘要:
The invention discloses a cylinder head of a small-sized general-purpose gasoline engine and a gasoline engine having the same. The cylinder head of the small-sized general-purpose gasoline engine comprises a cylinder head body (1), and an intake passage (9), an exhaust passage (5) and a sparking plug mounting hole (8) arranged on the cylinder head body (1); a combustion chamber surface (7), being a arched smooth curve, is formed at the inner side of the cylinder head body (1); the cylinder head body (1) is provided with an intake valve (11) corresponding to the intake passage (9) and an exhaust valve (4) corresponding to the exhaust passage (5); the intake valve (11) is inclined towards the intake passage (9) from the bottom part to the top part; the exhaust valve (4) is inclined towards the exhaust passage (5) from the bottom part to the top part; and the included angle between the axis of the intake valve (11) and the axis of the exhaust valve (4) is 24±5 degrees. In the invention, the parameters between the combustion chamber and the intake valve as well as the exhaust valve are inter-coordinated and matched, the operation efficiency of the gasoline engine is improved, the fuel is saved, and the discharge is reduced.
摘要:
The invention discloses an air-cooling cylinder head of a gasoline engine and a gasoline engine. The air-cooling cylinder head of a gasoline engine comprises a cylinder head main body (1), and an intake passage (3), an exhaust passage (2) and a spark plug mounting hole (6) arranged in the cylinder head main body (1), a plurality of cooling fins (4) is arranged on the outer surface of the cylinder head main body (1), a combustion chamber surface (5) is formed on the inner side of the cylinder head main body (1), a longitudinally through air-cooling passage I (8) is arranged on the same side of the cylinder head main body (1) as the intake passage (3) and the exhaust passage (2), a transversally through air-cooling passage II (7) is arranged between the intake passage (3) and the exhaust passage (2), and both the longitudinally through air-cooling passage I (8) and the transversally through air-cooling passage II (7) are kept away from function holes on the cylinder head main body (1). In the technical solution of the invention, cooling air flows through the outer surface of the combustion chamber wall from different directions to sufficiently decrease the temperature of the combustion chamber, so that the cylinder head has excellent cooling efficiency, and the power of the gasoline engine is increased.
摘要:
The invention discloses a cylinder head of a small-sized general-purpose gasoline engine and a gasoline engine having the same. The cylinder head of the small-sized general-purpose gasoline engine comprises a cylinder head body (1), and an intake passage (9), an exhaust passage (5) and a sparking plug mounting hole (8) arranged on the cylinder head body (1); a combustion chamber surface (7), being a arched smooth curve, is formed at the inner side of the cylinder head body (1); the cylinder head body (1) is provided with an intake valve (11) corresponding to the intake passage (9) and an exhaust valve (4) corresponding to the exhaust passage (5); the intake valve (11) is inclined towards the intake passage (9) from the bottom part to the top part; the exhaust valve (4) is inclined towards the exhaust passage (5) from the bottom part to the top part; and the included angle between the axis of the intake valve (11) and the axis of the exhaust valve (4) is 24±5 degrees. In the invention, the parameters between the combustion chamber and the intake valve as well as the exhaust valve are inter-coordinated and matched, the operation efficiency of the gasoline engine is improved, the fuel is saved, and the discharge is reduced.
摘要:
An engine, system and method for a domain social network that interconnects Internet users with at least domains owned by or of interest to those Internet users, and that may obtain and/or forward obtained dynamic data regarding those domains automatically, such as by web service or email service. The dynamic data may be used to filter and protect content and data of the respective domains, to protect users by identifying low quality web pages or malicious software or pages, to isolate or improve search results regarding the domain, and/or to improve Internet-based transaction flow, such as the creation of advertising.
摘要:
The present invention relates to a device for acquiring electricity utilization information which comprises a data acquisition and processing circuit configured to detect an operation parameter about a coupleable power supply circuit; a non-isolated power supply configured to convert an AC power into a DC power to supply an appropriate operation voltage to the data acquisition and processing circuit; a data communication module configured to modulate the detected operation parameter onto a predetermined frequency, wherein the modulated operation parameter is transmitted with a predetermined data transmission rate, and the predetermined frequency is higher than the predetermined data transmission rate such that the transmitted operation parameter can be demodulated; and an isolation component configured to provide electrical isolation and signal transmission isolation to perform a coupling isolation for the modulated operation parameter. The device not only can achieve divided measurement of electricity utilization, but also has the advantage of smaller volume.
摘要:
There is provided a computer-implemented method of performing sentiment analysis. An exemplary method comprises performing a first sentiment analysis on microblogging data based on a method using an opinion lexicon. The method also includes training a classifier using training data from the first sentiment analysis. Additionally, the method includes identifying a new opinion term in the microblogging data by performing a statistical test. The new opinion terms are not in the opinion lexicon. The method also includes identifying new microblogging data based on the new opinion term. Further, the method includes performing a second sentiment analysis on the new microblogging data using the classifier.
摘要:
A computer program product is embodied on a non-transitory computer readable medium. The computer program product comprises computer code to display a plurality of first indicia presented in a list, where each first indicia indicates a software product, and computer code to display a second indicia associated with a highlighted one of the first indicia. The second indicia comprises information about the software product indicated by the highlighted first indicia. The computer program product additionally comprises computer code to display a third indicia associated with the highlighted first indicia and indicate the availability of a software update for the software product indicated by the highlighted first indicia, and computer code to display a fourth indicia associated with the highlighted first indicia. The fourth indicia facilitates the retrieval of the software update.
摘要:
The present invention provides a non-vacuum method of depositing a photovoltaic absorber layer based on electrophoretic deposition of a mixture of nanoparticles with a controlled atomic ratio between the elements. The nanoparticles are first dispersed in a liquid medium to form a colloidal suspension and then electrophoretically deposited onto a substrate to form a thin film photovoltaic absorber layer. The absorber layer may be subjected to optional post-deposition treatments for photovoltaic absorption.
摘要:
A method of forming patterns on transparent substrates using a pulsed laser is disclosed. Various embodiments include an ultrashort pulsed laser, a substrate that is transparent to the laser wavelength, and a target plate. The laser beam is guided through the transparent substrate and focused on the target surface. The target material is ablated by the laser and is deposited on the opposite substrate surface. A pattern, for example a gray scale image, is formed by scanning the laser beam relative to the target. Variations of the laser beam scan speed and scan line density control the material deposition and change the optical properties of the deposited patterns, creating a visual effect of gray scale. In some embodiments patterns may be formed on a portion of a microelectronic device during a fabrication process. In some embodiments high repetition rate picoseconds and nanosecond sources are configured to produce the patterns.