Abstract:
A heat sink for cooling a heat source can include a thermally conductive base member configured to mount on, or be placed in thermal communication with, a heat source. The heat sink can include a heat sink module mounted on the thermally conductive base member. The heat sink module can include an inlet chamber formed within the heat sink module and an outlet chamber formed at least partially in the heat sink module and bounded by the surface of the thermally conductive base member. The heat sink module can include a first plurality of orifices extending from the inlet chamber to the outlet chamber. The first plurality of orifices can be configured to deliver a plurality of jet streams of coolant into the outlet chamber and against the surface of the thermally conductive base member when pumped coolant is provided to the inlet chamber.
Abstract:
A heat sink module for cooling a heat providing surface can include an inlet chamber and an outlet chamber formed within the heat sink module. The outlet chamber can have an open portion that can be enclosed by the heat providing surface when the heat sink module is installed on the heat providing surface. The heat sink module can include a dividing member disposed between the inlet chamber and the outlet chamber. The dividing member can include a first plurality of orifices extending from a top surface of the dividing member to a bottom surface of the dividing member. The first plurality of orifices can be configured to deliver a plurality of jet streams of coolant into the outlet chamber and against the heat providing surface when the heat sink module is installed on the heat providing surface and when pressurized coolant is provided to the inlet chamber.
Abstract:
A heat exchanger can include a first helical gas passageway extending from a first side of the heat exchanger to a second side of the heat exchanger. The first helical gas passageway can extend along and wrap around a first liquid passageway within the heat exchanger. A second helical gas passageway can extend from the first side of the heat exchanger to the second side of the heat exchanger. The second helical gas passageway can extend along and wrap around a second liquid passageway within the heat exchanger. Along a length of the first helical gas passageway, the first helical gas passageway can merge with the second helical gas passageway and then subsequently separate from the second helical gas passageway. The heat exchanger can be a liquid-to-gas counter-flow heat exchanger suitable for a wide variety of applications, including computer cooling.
Abstract:
A flexible ballistic resistant panel can include a first plurality of ballistic sheets comprising high performance fibers, a second plurality of ballistic sheets comprising high performance fibers, and a third plurality of ballistic sheets comprising high performance fibers. The second plurality of ballistic sheets can be adjacent to the first plurality of ballistic sheets, and the third plurality of ballistic sheets can be adjacent to the second plurality of ballistic sheets. Each ballistic sheet within the first plurality of ballistic sheets can be at least partially bonded to at least one adjacent ballistic sheet in the first plurality of ballistic sheets. Similarly, each ballistic sheet within the third plurality of ballistic sheets can be at least partially bonded to at least one adjacent ballistic sheet in the third plurality of ballistic sheets. The first, second, and third pluralities of ballistic sheets can be encased by a waterproof cover.
Abstract:
A breakaway fifth wheel coupling may couple a semi-tractor to a semi-trailer. In one embodiment, a breakaway fifth wheel coupling may include a top plate, a bottom brace, and a release mechanism that releasably attaches the top plate to the bottom brace. When a rollover event is detected, the release mechanism may allow the top plate to release from the bottom brace, thereby allowing the semi-tractor to separate from the semi-trailer. The fifth wheel coupling may include a pair of pivot rails that promote consistent decoupling of the top plate from the bottom brace. The breakaway fifth wheel coupling may reduce the likelihood of the semi-tractor participating in a rollover accident.
Abstract:
Computer hardware can be adapted for fluid cooling. Computer hardware can include a microprocessor with an integrated circuit. The integrated circuit can have a two-dimensional and/or three-dimensional circuit architecture. A heat sink module can be placed in thermal communication with the microprocessor. The heat sink module can include an inlet chamber and a plurality of orifices fluidly connecting the inlet chamber to an outlet chamber. When pressurized coolant is delivered to the inlet chamber, the plurality of orifices can provide jet streams of coolant into the outlet chamber and against a surface to be cooled to remove heat from the microprocessor while operating.
Abstract:
A heat exchanger can include a stacked array of interconnected fluid transfer members. The stacked array of interconnected fluid transfer members can include a first fluid transfer member, a second fluid transfer member, a third fluid transfer member, and a fourth fluid transfer member. The first fluid transfer member can include a liquid passageway extending lengthwise though the first fluid transfer member and a set of helical fins extending outwardly from an outer surface of the first fluid transfer member and rotating along a length of the first fluid transfer member. The stacked array of interconnected fluid transfer members can form a jointless structure.
Abstract:
An electric two-wheel tractor may include a tractor body having a front side, a rear side, a left side, a right side, a bottom side, and a body compartment located between the front side and the rear side and between the left side and the right side. The tractor may have one or more forward-facing receivers attached to or formed in the tractor body and configured to receive modular tractor accessories. The tractor may have one or more rearward-facing receivers attached to or formed in the tractor body and configured to receive modular tractor accessories. The bottom side of the tractor body may be located above a first axel of a first drive wheel and above a second axel of a second drive wheel to provide adequate ground clearance for over- the-bed farming applications.
Abstract:
A flexible cooling line assembly, when fluidly connected to a two-phase cooling apparatus, can provide device-level cooling to one or more devices. The assembly can include a first section of flexible, low-pressure tubing fluidly connected to an inlet port of a heat sink module. The heat sink module can include an inlet chamber fluidly connected to the inlet port and a plurality of orifices fluidly connecting the inlet chamber to an outlet chamber. The outlet chamber can be fluidly connected to an outlet port of the module, and a second section of flexible, low-pressure tubing can be fluidly connected to the outlet port. The plurality of orifices can deliver a plurality of jet streams of coolant into the outlet chamber and against a heat providing surface when the first heat sink module is mounted on the heat providing surface and when pressurized coolant is delivered to the inlet chamber.
Abstract:
A method of cooling multiple processors of an electronic device can employ a two-phase cooling system with series-connected heat sink modules. A flow of dielectric single-phase liquid coolant can be provided to a first heat sink module on a first processor. Within the first heat sink module, a first amount of heat can be transferred from the first processor to the liquid coolant resulting in vaporization of a first portion of liquid coolant, thereby changing the flow to two-phase bubbly flow as heat is absorbed across the heat of vaporization of the coolant. The two-phase bubbly flow can then pass from the first heat sink module to a second heat sink module mounted on a second processor. Within the second module, heat transfer from the second processor to the coolant can result in vaporization of a second portion of liquid coolant, thereby increasing vapor quality of the two-phase bubbly flow.