Hamilton Sundstrand Corporation

Pidyon Controls Inc.

Ahmet T Becene

Gabriel Ruiz

Feng Feng

Michael Doe

Michael Maynard

Ephraim Joseph

Michele Hu

Velissa Van Scoyoc

Yochanan Cohen

Ekaterina Kravchenko

Peter D Byar

Thomas J Ocken

Alexis Grant

Steven Roy Duke

James Streeter

Jessica M Blamick

Nigel G M Palmer

A heat exchanger manifold configured to receive or discharge a first fluid includes a primary fluid channel and a plurality of secondary fluid channels. The primary fluid channel includes a fluid port and a first branched region distal to the fluid port. The plurality of secondary fluid channels are fluidly connected to the primary fluid channel at the first branched region. Each of the plurality of secondary fluid channels includes a first end and a second end opposite the first end. Each of the plurality of secondary fluid channels extends radially from the first branched region at the first end and has an equal length from a center of the first branched region to the second end.

Heat exchanger with radially converging manifold

A monolithic core for a heat exchanger comprises a plurality of three-dimensional unit cells arranged along three orthogonal axes of the core, the three orthogonal axes comprising a first axis, a second axis, and a third axis. Each of the plurality of unit cells has a first dimension comprising an axial extent along the first axis, a second dimension comprising an axial extent along the second axis, and a third dimension comprising an axial extent along the third axis. For at least one unit cell of the plurality of unit cells, the first dimension is not equal to the second dimension.

Minimal surface core heat exchangers with three-dimensional parametric control

A heat exchanger includes a first flow circuit structure having at least a first portion defined by a plurality of conduits and a second flow circuit structure having at least a second portion disposed at the first portion such that walls of the second portion are disposed between the conduits and are free to move relative to the conduits. Fluid flowing through the first flow circuit structure is fluidically isolated from fluid flowing through the second flow circuit structure.

Heat exchanger

A heat exchanger includes a first fluid manifold extending along a first fluid axis from a first fluid inlet to a first fluid outlet. The first fluid manifold comprises a inlet header, a outlet header, and a multi-helical core section. The inlet header is disposed to fork the first fluid inlet into a plurality of first fluid branches distributed laterally across a plane normal to the first fluid axis. The outlet header is disposed to combine the plurality of first fluid branches into the first fluid outlet. The multi-helical core section fluidly connects the inlet header to the outlet header via a plurality of laterally distributed helical tubes, each helical tube corresponding to one of the plurality of first fluid branches and oriented parallel to all others of the plurality of helical tubes at each axial location along the first fluid axis.

Rectangular helical core geometry for heat exchanger

A heat exchanger includes a first fluid manifold extending along a first fluid axis from a first fluid inlet to a first fluid outlet. The first fluid manifold includes a first fluid inlet header, a first fluid outlet header, and a nested helical core section. The first fluid inlet header is disposed to fork the first fluid inlet into a plurality of first fluid branches distributed circumferentially and radially about the first fluid axis. The first fluid outlet header is disposed to combine the plurality of first fluid branches into the first fluid outlet. The nested helical core section fluidly connects the first fluid inlet header to the first fluid outlet header via a plurality of nested helical tubes, and includes radially inner and outer groups of circumferentially distributed helical tubes.

Radially layered helical core geometry for heat exchanger

A heat exchanger header for receiving a first fluid includes a tubular primary fluid channel oriented along a first axis and having a first cross-sectional area. A first branched region adjacent to the primary fluid channel fluidly connects to a plurality of tubular secondary fluid channels, each having a second cross-sectional area, and a second branched region adjacent to each of the secondary fluid channels fluidly connects to a plurality of tubular tertiary fluid channels, each having a third cross-sectional area. The second cross-sectional area is greater than the third cross-sectional area.

Heat exchanger header with fractal geometry

A core arrangement for a heat exchanger includes a plurality of inlets arranged around an axis, a plurality of outlets arranged around the axis, and a plurality of bowed conduits arranged around the axis. The bowed conduits are structurally independent, connect the plurality of inlets to the plurality of outlets, bow outward from the axis between the plurality of inlets and the plurality of outlets, and provide thermal compliance to the core.

Circular core for heat exchangers

A core arrangement for a heat exchanger includes a first core layer disposed along a first plane and having an inlet and outlet oriented along a first axis within the first plane and a first core stage disposed in fluid communication between the inlet and the outlet. The first core stage includes a first upstream fluid intersection downstream of and adjacent the inlet and having a first inlet continuation and a first bifurcation. The first core stage further includes a first downstream fluid intersection upstream of and adjacent the outlet and having a first outlet continuation and a first recombination. A plurality of first core tubes fluidly connect the first bifurcation to the first recombination. The first core layer further includes a second core stage disposed in fluid communication between the first inlet continuation and the first outlet continuation. The second core stage includes a second upstream fluid intersection downstream of the first inlet continuation and having a second bifurcation, and a second downstream fluid intersection upstream of the first outlet continuation and having a second recombination. A plurality of independent second core tubes fluidly connect the second bifurcation to the second recombination.

Leaf-shaped geometry for heat exchanger core

Embodiments of a car seat include an outer protective shell, an inner seat, a suspension system connecting and permitting relative movement between the inner seat and the outer protective shell. The suspension system may include a plurality of deformable metal straps. Also, embodiments of a car seat system include a frame constructed to couple to a vehicle seat. The frame has a vertical portion that extends upwardly substantially along a vehicle seatback. The vertical portion extends at least half of the height of vehicle seatback. Also, the system includes a car seat constructed to couple to the frame.

Car seat and connection system

Embodiments of a car seat include an outer protective shell, an inner seat, a suspension system connecting and permitting relative movement between the inner seat and the outer protective shell. The suspension system may include a plurality of deformable webs. Also, at least one padding element may be in contact with and interposed between the outer protective shell and the inner seat. In an accident, regardless of the direction in which the seat is facing and regardless of whether the result is a sudden acceleration and/or deceleration, the inner seat will move inside the frame, and the suspension system will absorb some, much, or all of the energy either by elastic or plastic deformation. Energy not absorbed by the suspension system may be absorbed by the inner seat itself and/or an anchor system used to connect the car seat to a vehicle.

Car seat

Embodiments of a car seat include an outer protective shell, an inner seat, a suspension system connecting and permitting relative movement between the inner seat and the outer protective shell for shock isolation, and a harness adapted to hold an occupant to the inner seat and not attached to the outer protective shell. In an accident, regardless of the direction in which the seat is facing and regardless of whether the result is a sudden acceleration and/or deceleration, the inner seat will move inside the frame, and the suspension system will absorb some, much, or all of the energy. Energy not absorbed by the suspension system may be absorbed by the inner seat itself and/or an anchor system used to connect the car seat to a vehicle. The frame of the seat will remain structurally intact in almost all circumstances thereby protecting the occupant of the car seat.

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West Simsbury, CT, United States of America

Ahmet T Becene