Abstract:
A filter assembly for filtering particulate contaminants from a fluid comprises: a generally cylindrical filter unit with one end closed and the other end open with a generally circular first fluid port and a generally annular second fluid port in a coaxial arrangement; a filter head comprising a generally circular fluid interface aligned along a generally horizontal axis with a generally circular first fluid port and a generally annular second fluid port in a coaxial arrangement to mate with the corresponding filter unit first and second fluid ports and further comprising a generally cylindrical sleeve extending generally horizontally from the interface with an open end for receiving the open end of the filter unit with a vent port aligned with a vertical axis horizontally displaced from the interface extending through an upper portion of the sleeve and a drain port aligned with the vertical axis extending through a lower portion of the sleeve; and a coupling for securing the open end of the filter unit to the filter head interface to seal the sleeve vent and drain ports and mate the corresponding first and second fluid ports of the filter unit and filter head to establish fluid communication between them; wherein loosening the coupling allows the filter unit to slide away from the filter head interface sufficiently to establish fluid communication between the sleeve vent and drain ports and the fluid ports in the filter unit and filter head.
Abstract:
A filter assembly for filtering particulate contaminants from a fluid comprises: a generally cylindrical filter unit with one end closed and the other end open; a filter head comprising a generally cylindrical sleeve extending generally horizontally an open end for receiving the open end of the filter unit with that has a vent port aligned with a vertical axis through an upper portion of the sleeve and a drain port aligned with the vertical axis extending through a lower portion of the sleeve; and a coupling for securing the open end of the filter unit to the filter head to seal the sleeve vent and drain ports; wherein loosening the coupling allows the filter unit to slide away from the filter head sufficiently to establish fluid communication between the sleeve vent and drain ports.
Abstract:
Some embodiments relate to an engine driven generator that includes a first electrical fan and a second electrical fan. The engine driven generator further includes a power source and a circuit connecting the power source to the first electrical fan and the second electrical fan. The circuit is configured to selectively connect the first electrical fan and the second electrical fan in series or in parallel. The circuit may operate the first electrical fan and the second electrical fan at full speed when the first electrical fan and the second electrical fan are electrically connected in parallel. The circuit may operate the first electrical fan and the second electrical fan at less than full speed when the first electrical fan and the second electrical fan are electrically connected in series.
Abstract:
Some embodiments relate to an engine driven generator that includes a first electrical fan and a second electrical fan. The engine driven generator further includes a power source and a circuit connecting the power source to the first electrical fan and the second electrical fan. The circuit is configured to selectively connect the first electrical fan and the second electrical fan in series or in parallel. The circuit may operate the first electrical fan and the second electrical fan at full speed when the first electrical fan and the second electrical fan are electrically connected in parallel. The circuit may operate the first electrical fan and the second electrical fan at less than full speed when the first electrical fan and the second electrical fan are electrically connected in series.
Abstract:
Some embodiments relate to a generator that includes an alternator and an engine. The engine includes an output shaft that is coupled to a rotor of the alternator. The generator further includes a first fan that initially directs air in a first direction which is parallel to a longitudinal axis of the output shaft. A second fan that directs air in a second direction that is orthogonal to the longitudinal axis of the output shaft. The generator further includes an enclosure such that the alternator, the engine, the first fan and the second fan are within the enclosure. In some embodiments, the generator may further include a third fan that directs air in the direction that is orthogonal to the longitudinal axis of the output shaft and a fourth fan that directs air in a direction that is parallel to the longitudinal axis of the output shaft.
Abstract:
Some embodiments relate to a generator that includes an alternator and an engine. The engine includes an output shaft that is coupled to a rotor of the alternator. The generator further includes a first fan that initially directs air in a first direction which is parallel to a longitudinal axis of the output shaft. A second fan that directs air in a second direction that is orthogonal to the longitudinal axis of the output shaft. The generator further includes an enclosure such that the alternator, the engine, the first fan and the second fan are within the enclosure. In some embodiments, the generator may further include a third fan that directs air in the direction that is orthogonal to the longitudinal axis of the output shaft and a fourth fan that directs air in a direction that is parallel to the longitudinal axis of the output shaft.