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US 7,926,853 B2Granted
Heat exchanger pipe joint
AssigneeDenso Corporation
InventorsYoshiki Katoh, Mitsugu Nakamura, Arinori Shimizu, Sadayuki Kamiya, Hiroki Naganawa, Takaharu Nagoya, Takayuki Hirose
Life of this patent
Estimating the term…
Abstract
A pipe joint structure includes a plurality of fluid flow path portions, a socket connected to the fluid flow path portions, a connection plate disposed to abut against the socket, a plurality of pipes connected to each other by the connection plate, and a seal member disposed between the plurality of pipes and the socket. The socket includes a connection portion that is located to cover an edge of the connection plate and to fix the plurality of pipes to the plurality of fluid flow path portions. The pipe joint structure can be suitably used for a heat exchanger.
Claims15
A heat-exchanger pipe joint structure comprising:
- a heat exchanger including an inlet-side refrigerant flow path portion and an outlet-side refrigerant flow path portion;
- a socket connected to the inlet-side refrigerant flow path portion and the outlet-side refrigerant flow path portion;
- a connection plate disposed to abut against the socket;
- an inlet pipe and an outlet pipe, one ends of which are connected to each other by the connection plate;
- a joint provided at the other ends of the inlet pipe and the outlet pipe to join the other ends of the inlet pipe and the outlet pipe;
- a seal member disposed between the inlet and outlet pipes and the socket;
- and
- a sacrificial corrosive material located on the connection plate;
- wherein the socket includes a connection portion that covers an entire outer periphery of the connection plate, the connection portion directly overlapping and fastening the connection plate to the socket.
6 more elements
A heat-exchanger pipe joint structure comprising:
- a heat exchanger including an inlet-side refrigerant flow path portion and an outlet-side refrigerant flow path portion;
- a socket connected to the inlet-side refrigerant flow path portion and the outlet-side refrigerant flow path portion;
- a connection plate disposed to abut against the socket;
- an inlet pipe and an outlet pipe, one ends of which are connected to each other by the connection plate;
- a joint provided at the other ends of the inlet pipe and the outlet pipe to join the other ends of the inlet pipe and the outlet pipe;
- and
- a seal member disposed between the inlet and outlet pipes and the socket, wherein
- the socket includes a connection portion located to cover an of the connection plate and to fix the inlet pipe and the outlet pipe to the inlet-side refrigerant flow path portion and the outlet-side refrigerant path portion;
- and
- the inlet pipe and the outlet pipe have annular bulge portions formed in the vicinity of the connection plate and protruding in a radial outward direction.
7 more elements
A heat-exchanger pipe joint structure comprising:
- a heat exchanger including an inlet-side refrigerant flow path portion and an outlet-side refrigerant flow path portion;
- a socket connected to the inlet-side refrigerant flow path portion and the outlet-side refrigerant flow path portion;
- a connection plate disposed to abut against the socket;
- an inlet pipe and an outlet pipe, one ends of which are connected to each other by the connection plate;
- a joint provided at the other ends of the inlet pipe and the outlet pipe to join the other ends of the inlet pipe and the outlet pipe;
- a seal member disposed between the inlet and outlet pipes and the socket;
- wherein
- the socket includes a connection portion that covers an entire outer periphery of the connection plate, the connection portion directly overlapping and fastening the connection plate to the socket;
- and
- the socket has a drain hole formed between the connection portion and the seal member.
7 more elements
A heat-exchanger pipe joint structure comprising:
- a heat exchanger including an inlet-side refrigerant flow path portion and an outlet-side refrigerant flow path portion;
- a socket connected to the inlet-side refrigerant flow path portion and the outlet-side refrigerant flow path portion;
- a connection plate disposed to abut against the socket;
- an inlet pipe and an outlet pipe, one ends of which are connected to each other by the connection plate;
- a joint provided at the other ends of the inlet pipe and the outlet pipe to join the other ends of the inlet pipe and the outlet pipe;
- a seal member disposed between the inlet and outlet pipes and the socket;
- wherein
- the socket includes a connection portion that covers an entire outer periphery of the connection plate, the connection portion directly overlapping and fastening the connection plate to the socket;
- and
- the connection plate has at least one drain hole formed therein.
7 more elements
A heat-exchanger pipe joint structure comprising:
- a heat exchanger including an inlet-side refrigerant flow path portion and an outlet-side refrigerant flow path portion;
- a socket connected to the inlet-side refrigerant flow path portion and the outlet-side refrigerant flow path portion;
- a connection plate disposed to abut against the socket;
- an inlet pipe and an outlet pipe, one ends of which are connected to each other by the connection plate;
- a joint provided at the other ends of the inlet pipe and the outlet pipe to join the other ends of the inlet pipe and the outlet pipe;
- a seal member disposed between the inlet and outlet pipes and the socket;
- and
- a resin coating located at a fastened portion of the connection portion;
- wherein
- the socket includes a connection portion that covers an entire outer periphery of the connection plate, the connection portion directly overlapping and fastening the connection plate to the socket.
7 more elements
Dependencies are inferred from the claim text.