Abstract: A substrate having one or more shaped effusion cooling holes formed therein. Each shaped cooling hole has a bore angled relative to an exit surface of the combustor liner. One end of the bore is an inlet formed in an inlet surface of the combustor liner. The other end of the bore is an outlet formed in the exit surface of the combustor liner. The outlet has a shaped portion that expands in only one dimension. Also methods for making the shaped cooling holes.

Abstract: A handheld scooping and shaping device comprising a snow shaping section, a first hollow rigid shaft segment, a plurality of additional hollow rigid shaft segments, and a handle. The snow shaping section comprises a scooping panel, back panel, first sidewall, second sidewall, and bottom panel. The scooping panel comprises a distal end having a plurality of teeth extending outwardly. The back panel opposes the scooping panel. The first sidewall opposes the second sidewall. The bottom panel is coupled or integrated to the scooping panel, back panel, first sidewall and second sidewall. The first hollow rigid shaft segment is removably coupled to the snow shaping section. The plurality of additional hollow rigid shaft segments are configured to nest within at either the first hollow rigid shaft segment or an additional hollow rigid shaft segment. The handle is coupled or integrated to one of the additional hollow rigid shaft segments.

Abstract: A combustor for a gas turbine engine comprises a liner having a forward opening and an aft opening. A deflector closes the forward opening and the aft opening is in fluid communication with a turbine section downstream of the combustor. A dome disposed in the deflector provides a fuel/air mixture to be ignited to drive the turbine section. A gap can be disposed between the deflector and the liner, having film holes disposed in the deflector for providing a flow of cool air to the gap for cooling the combustion liner downstream of the gap.

Abstract: A combustor for a gas turbine engine comprising a combustion liner defining a combustion chamber, wherein the combustion liner has at least one opening into which a combustor liner mount is received. The combustor liner mount can have at least one cooling passage defined therein having an inlet defining an inlet axis and an outlet defining an outlet axis, wherein the inlet axis is not collinear with the outlet axis for providing enhanced cooling to at least one of the combustor liner mount and an adjacent combustion component, such as an igniter or a borescope plug.

Abstract: A gas turbine engine includes a combustion section space between a compressor section in a turbine section. The combustion section defines a combustion chamber and includes a combustor member defining an opening to the combustion chamber. A mounting assembly extends around or is positioned adjacent to the opening defined by the combustor member. In igniter extends through a ferrule of the mounting assembly and includes a distal end positioned proximate the opening in the combustor member. The igniter defines a plurality of channels each channel extending between a first end and a second end. The first end is positioned away from the distal end of the igniter relative to the second end, and the second end is a terminal end spaced from the distal end of the igniter.

Abstract: An engine component assembly is provided for impingement cooling including discrete cooling features. An insert is located opposite and adjacent to a cooled surface of the engine component and includes a plurality of angled impingement air holes. A cooling fluid flow path is flowing on one side the cooled surface of the engine component and adjacent to the insert and passes through the angled cooling holes of the insert in order to cool the cooled surface of the engine component. Additionally, a plurality of discrete cooling features may be located along the cooled surface of the engine component opposite the plurality of cooling holes in the insert.

Abstract: A wireless access control system for a door may include a lock assembly carried by the door. The lock assembly may include a lock, lock wireless communications circuitry, a door position determining device, a touch sensor to sense touching by a user, and a lock controller. A remote access device may be remote from the lock assembly and may to communicate with the lock wireless communications circuitry. The lock controller may be configured to determine when the door is moved in a pattern based upon the door position determining device, perform an authentication of the remote access device based upon determining the door being moved in the pattern, and switch the lock from the unlocked position to the locked position based upon the authentication and the user touching the touch sensor.

Abstract: A handheld scooping and shaping device comprising a snow shaping section, a first hollow rigid shaft segment, a plurality of additional hollow rigid shaft segments, and a handle. The snow shaping section comprises a scooping panel, back panel, first sidewall, second sidewall, and bottom panel. The scooping panel comprises a distal end having a plurality of teeth extending outwardly. The back panel opposes the scooping panel. The first sidewall opposes the second sidewall. The bottom panel is coupled or integrated to the scooping panel, back panel, first sidewall and second sidewall. The first hollow rigid shaft segment is removably coupled to the snow shaping section. The plurality of additional hollow rigid shaft segments are configured to nest within at either the first hollow rigid shaft segment or an additional hollow rigid shaft segment. The handle is coupled or integrated to one of the additional hollow rigid shaft segments.

Abstract: A wireless access control system for a door may include a lock assembly carried by the door. The lock assembly may include a lock, lock wireless communications circuitry, a touch sensor, and a lock controller. The system may also include a plugin device remote from the lock assembly. The system may also include a remote access device remote from the lock. The plugin device may wirelessly send a lock communication enable command to enable the lock based upon wireless communication with the remote access device. The lock controller may communicate with the remote access device based upon wirelessly receiving the lock communication enable command, perform an authentication of the remote access device based upon the lock communication enable command, and switch the lock between locked and unlocked positions based upon the authentication and the user touching the touch sensor.

Abstract: A wireless access control system for a door may include a lock assembly carried by the door. The lock assembly may include a lock, lock wireless communications circuitry, a door position determining device, a touch sensor to sense touching by a user, and a lock controller. A remote access device may be remote from the lock assembly and may to communicate with the lock wireless communications circuitry. The lock controller may be configured to determine when the door is moved in a pattern based upon the door position determining device, perform an authentication of the remote access device based upon determining the door being moved in the pattern, and switch the lock from the unlocked position to the locked position based upon the authentication and the user touching the touch sensor.

Abstract: A wireless access control system for a door may include a lock assembly carried by the door. The lock assembly may include a lock, lock wireless communications circuitry, a proximity detector to detect a proximity of a user to the door, a touch sensor, and a lock controller. The system also includes a remote access device remote from the lock that includes remote access wireless communications circuitry to communicate with the lock wireless communications circuitry. The lock controller determines when the user is approaching the door based upon the proximity detector, performs an authentication of the remote access device, via the lock wireless communications circuitry and the remote access wireless communications circuitry, and based upon the user approaching the door, and switches the lock from a locked position to an unlocked position based upon the authentication and the user touching the touch sensor.

Abstract: A wireless access control system for a door may include a lock assembly carried by the door that may include a lock, lock wireless communications circuitry, a proximity detector directed toward an interior area, interior and exterior antennas, and a lock controller. The lock controller may determine if the user is in the interior or exterior area based upon the proximity detector and a received signal strength at the interior and exterior antennas based upon wireless communication with a remote access device, enable lock switching based upon the received signal strength at the exterior antenna being greater than at the interior antenna, disable lock switching when the user is in the interior area and a difference between the received signal strength at the interior and exterior antennas is below a threshold, and switch the lock based upon communication with the remote access device and switching of the lock being enabled.

Abstract: A wireless access control system includes a remote access device and an electronic lock. The electronic lock communicates with the remote access device. The electronic lock controls the ability to lock and unlock a door in which the electronic lock is disposed. The electronic lock determines when the remote access device is at a distance less than or equal to a predetermined distance from the lock to enable the lock to be unlocked.

Abstract: DC to DC converters and PWM controllers are presented in which a slope compensation ramp signal is provided for current control operation via a frequency adaptive compensation circuit with a phase locked loop that provides a control output signal having an amplitude generally proportional to the frequency of a clock signal, and a slope generator circuit generating the slope compensation ramp signal with an amplitude generally proportional to the control output signal amplitude.

Abstract: A wireless access control system includes a remote access device. A plugin device communicates with the remote access device. A lock controls the ability to lock and unlock a door in which the lock is disposed. The lock is in communication with the plugin device. The plugin device determines a distance between the remote access device and the lock and causes the lock to communicate with the remote access device when the remote access device is at a distance less than or equal to a predetermined distance from the lock to enable the lock to be unlocked.

Abstract: DC to DC converters and PWM controllers are presented in which a slope compensation ramp signal is provided for current control operation via a frequency adaptive compensation circuit with a phase locked loop that provides a control output signal having an amplitude generally proportional to the frequency of a clock signal, and a slope generator circuit generating the slope compensation ramp signal with an amplitude generally proportional to the control output signal amplitude.

Abstract: A wireless access control system includes a remote access device and an electronic lock. The electronic lock communicates with the remote access device. The electronic lock controls the ability to lock and unlock a door in which the electronic lock is disposed. The electronic lock determines when the remote access device is at a distance less than or equal to a predetermined distance from the lock to enable the lock to be unlocked.

Abstract: A wireless access control system includes a remote access device. A plugin device communicates with the remote access device. A lock controls the ability to lock and unlock a door in which the lock is disposed. The lock is in communication with the plug in device. The plug in device determines a distance between the remote access device and the lock and causes the lock to communicate with the remote access device when the remote access device is at a distance less than or equal to a predetermined distance from the lock to enable the lock to be unlocked.

Abstract: An air handler unit (AHU) in communication with a building automation system (BAS) or through direct programming of one or more smart valves within the AHU operates to meter an amount of water that flows through a coil in the AHU. In one embodiment, the BAS transmits a temperature setpoint signal to the smart valve and allows the smart valve to control its valve position without additional input from the BAS. In another embodiment, the AHU includes a master smart valve and a second valve. The BAS provides the temperature setpoint signal to the master smart valve, which in turn provides another temperature setpoint signal to the second valve. The second valve may take the form of a slave smart valve or a slave non-smart valve.

Abstract: A wireless access control system includes a remote access device and an electronic lock. The electronic lock communicates with the remote access device. The electronic lock controls the ability to lock and unlock a door in which the electronic lock is disposed. The electronic lock determines when the remote access device is at a distance less than or equal to a predetermined distance from the lock to enable the lock to be unlocked.