Plunger, pump, and liquid analysis device
AssigneeKYOCERA Corporation
InventorSatoru Tsubokura
Life of this patent
Estimating the term…
Abstract
The plunger of the present disclosure includes: a plunger main body section that is made of sapphire, has a pillar shape, and includes a non-penetrating fitting hole extending in a central axis direction from one end portion; a core portion that is inserted into the fitting hole and has a higher thermal conductivity than sapphire; and a joint layer that is interposed between an inner peripheral surface and a bottom surface of the fitting hole of the plunger main body section, and an outer peripheral surface and a tip surface of the core portion, the joint layer being configured to bond the plunger main body section and the core portion. A pump includes the plunger. A liquid analysis device includes the pump.
Claims10
A plunger comprising:
- a plunger main body section made of sapphire, having a pillar shape, and comprising a fitting hole that is non-penetrating and that extends in a central axis direction from one end portion of the plunger main body section;
- a core portion inserted into the fitting hole and having a higher thermal conductivity than the sapphire;
- and
- a joint layer interposed between
- an inner peripheral surface and a bottom surface of the fitting bole of the plunger main body section and
- an outer peripheral surface and a tip surface of the core portion, the joint layer being configured to bond the plunger main body section and the core portion.
Dependencies are inferred from the claim text.