US 2022/0090700 A1Published application

Valve device

AssigneeDenso Corporation

InventorsTakuya HAMADA, Hiroki SHIMADA, Akira HIGUCHI, Takehito MIZUNUMA, Syota KIMURA, Ryou SANO

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Abstract

A valve device includes: a driving source making rotational motion; a rotated part provided rotatably around a predetermined axis; and a fluid passage portion having a flow hole for passing a fluid. The valve device further includes: a gear mechanism having gears to transmit rotational motion of the driving source to the rotated part by engagement between the gears to rotate the rotated part; and a biasing part biasing the rotated part toward one side in a circumferential direction with the predetermined axis at the center. The rotated part includes a rotor increasing or reducing an opening of the flow hole in conjunction with rotation of the rotated part and is rotated according to rotational motion of the driving source while being biased toward the one side in the circumferential direction by the biasing part.

Claims11

Dependent claims

A valve device through which a fluid flows for a vehicular temperature control device including a first heat exchanger exchanging heat between air outside a cabin and the fluid to radiate heat of the fluid to the air and a second heat exchanger exchanging heat between air flowing into the cabin and the fluid to heat the air, comprising:

a driving source making a rotational motion;
a rotated part provided rotatably around a predetermined axis;
a fluid passage portion having a first flow hole and a second flow hole for passing the fluid;
a gear mechanism having a plurality of gears to transmit the rotational motion of the driving source to the rotated part by engagement between the plurality of gears to rotate the rotated part;
a biasing part biasing the rotated part toward one side in a circumferential direction about the predetermined axis;
a first outlet port coupled with an upstream side, in a fluid flow, of the first heat exchanger and letting the fluid flow out to the first heat exchanger;
a second outlet port coupled with an upstream side, in a fluid flow, of the second heat exchanger and letting the fluid flow out to the second heat exchanger;
and
an inlet port coupled with a downstream side, in a fluid flow, of the first heat exchanger and a downstream side of the second heat exchanger and into which the fluid flows from the first heat exchanger and the second heat exchanger, wherein
the rotated part includes a rotor increasing or reducing an opening of the first flow hole and an opening of the second flow hole in conjunction with rotation of the rotated part,
the biasing part biases the rotated part toward the one side in the circumferential direction by an energization force biasing the rotated part toward the one side in the circumferential direction,
when the fluid flows from the inlet port to the first outlet port, the fluid passes through the first flow hole and then flows to the first outlet port,
when the fluid flows from the inlet port to the second outlet port, the fluid passes through the second flow hole and then flows to the second outlet port, and
the rotor increases or reduces the opening of the first flow hole by being rotated according to the rotational motion of the driving source while being biased toward the one side in the circumferential direction by the biasing part.

11 more elements

A valve device through which a fluid flows, comprising:

a driving source making a rotational motion;
a rotated part provided rotatably around a predetermined axis;
a fluid passage portion having a flow hole for passing the fluid;
a gear mechanism having a plurality of gears to transmit the rotational motion of the driving source to the rotated part by engagement between the plurality of gears to rotate the rotated part;
and
a biasing part biasing the rotated part toward one side in a circumferential direction about the predetermined axis, wherein
the rotated part includes a rotor increasing or reducing an opening of the flow hole in conjunction with rotation of the rotated part,
the biasing part is a coil spring wound around the predetermined axis and produces energization force biasing the rotated part toward the one side in the circumferential direction by elastic deformation of the biasing part twisted in the circumferential direction,
the rotated part is rotated by the rotational motion of the driving source while being biased by the biasing part toward the one side in the circumferential direction, and
the coil spring is disposed between the gear mechanism and the rotor in an axial direction of the predetermined axis, and is connected to the rotor.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/540,979Filed 2 Dec 2021
Priority: JP 2019-10898711 Jun 2019
Published: 24 Mar 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

F16K 31/535
With toothed gearing: for rotating valves
B60H 1/00278
HVAC devices specially adapted for particular vehicle parts or components and being connected to the vehicle HVAC unit: for the battery
B60H 1/00328
Heat exchangers for air-conditioning devices: of the liquid-air type
B60H 1/00485
Heating, cooling or ventilating devices: valves for air-conditioning devices, e.g. thermostatic valves