Heat pump
AssigneeYanmar Power Technology Co., Ltd.
InventorsNorihiro Okuda, Hirohiko Nobuhara
Life of this patent
Estimating the term…
Abstract
A gas-side stop valve on the gas refrigerant side and a liquid-side stop valve on the liquid refrigerant side are provided in a package of an outdoor unit. A gas-side filter on the gas refrigerant side is mounted on the indoor unit side relative to the gas-side stop valve and inside the package of the outdoor unit. A liquid-side filter 9 on the liquid refrigerant side is mounted on the indoor unit side relative to the liquid-side stop valve and inside the package of the outdoor unit. As a result, it is not necessary to ensure a place for mounting the gas-side filter and the liquid-side filter at the time of installation on site and the workability can be improved.
Claims20
An outdoor unit of a heat pump, the outdoor unit comprising:
- a package that includes:
- a compressor;
- a first heat exchanger in fluid communication with the compressor;
- a gas stop valve coupled to the compressor and comprising a gas stop valve inlet and a gas stop valve outlet;
- a liquid stop valve having a first flow path that extends in an up-down direction;
- a gas filter comprising a gas filter inlet and a gas filter outlet;
- and
- a liquid filter coupled to the liquid stop valve and configured to be coupled, via a liquid pipe, to an indoor unit of the heat pump;
- and
- wherein the liquid filter includes a liquid filter inlet and a liquid filter outlet and has a second flow path that extends through each of the liquid filter inlet, the liquid filter, and the liquid filter outlet in a horizontal direction.
An outdoor unit of a heat pump, the outdoor unit comprising:
- a package that includes:
- a compressor;
- a first heat exchanger in fluid communication with the compressor;
- a gas stop valve coupled to the compressor;
- a gas filter coupled to the gas stop valve;
- a liquid stop valve that defines a first channel having a first inlet and a first outlet and configured to receive a refrigerant;
- and
- a liquid filter coupled to the liquid stop valve, the liquid filter defines a second channel having a second inlet and a second outlet and configured to receive the refrigerant from the first channel
- wherein:
- the first channel defines a first flow path that flows in a first direction at the first inlet and the first outlet;
- and
- the second channel defines a second flow path that flows in a second direction at the second inlet and the second outlet, the second direction being substantially orthogonal to the first direction.
A heat pump comprising:
- an outdoor unit comprising:
- a compressor;
- a first heat exchanger in fluid communication with the compressor;
- a gas stop valve coupled to the compressor;
- a gas filter coupled to the gas stop valve;
- a liquid stop valve including a liquid stop valve inlet and a liquid stop valve outlet;
- and a liquid filter coupled to the liquid stop valve, the liquid filter including a liquid filter inlet and a liquid filter outlet;
- an indoor unit comprising a second heat exchanger and a liquid pipe coupled to the liquid filter;
- wherein:
- the heat pump defines a flow path from the liquid stop valve inlet, through the liquid stop valve to the liquid stop valve outlet, to the liquid filter inlet, through the liquid filter, to the liquid filter outlet;
- and
- the liquid stop valve extends in a first direction from the liquid stop valve inlet to the liquid stop valve outlet and the liquid filter extends in a second direction from the liquid filter inlet to the liquid filter outlet, the second direction being substantially orthogonal to the first direction.
Dependencies are inferred from the claim text.