Marine vessel propulsion machine ventilation apparatus and marine vessel propulsion machine
AssigneeHonda Motor Co., Ltd.
InventorNorikazu Kawai
Life of this patent
Estimating the term…
Abstract
A marine vessel propulsion machine ventilation apparatus includes a first ventilation film (31), a second ventilation film (35), and an air chamber (27). The first ventilation film (31) permits passing of a gas, prevents passing of a liquid, and has one film surface facing the outside. The second ventilation film (35) permits passing of a gas, prevents passing of a liquid, and has one film surface facing the inside of a device accommodation case (19). Another film surface of each of the first ventilation film (31) and the second ventilation film (35) faces the air chamber (27).
Claims17
A marine vessel propulsion machine ventilation apparatus, comprising:
- a first ventilation film that permits passing of a gas, prevents passing of a liquid, and has a first film surface which is one side of film surface facing an outside;
- a second ventilation film that permits passing of a gas, prevents passing of a liquid, and has a second film surface which is one side of film surface facing an inside of a device accommodation case;
- and
- an air chamber which a third film surface which is an other side of film surface of the first ventilation film and a fourth film surface which is an other side of film surface of the second ventilation film face.
A marine vessel propulsion machine, comprising:
- a propulsion mechanism that propels a marine vessel;
- a device accommodation case that accommodates at least part of the propulsion mechanism in an inside of the device accommodation case, at least part of the device accommodation case being submerged in an outside water;
- and
- a ventilation apparatus that permits a flow of air between the inside of the device accommodation case and an outside,
- wherein the ventilation apparatus comprises:
- a first ventilation film that permits passing of a gas, prevents passing of a liquid, and has a first film surface which is one side of film surface facing an outside;
- a second ventilation film that permits passing of a gas, prevents passing of a liquid, and has a second film surface which is one side of film surface facing the inside of the device accommodation case;
- and
- an air chamber which a third film surface which is an other side of another film surface of the first ventilation film and a fourth film surface which is an other side of film surface of the second ventilation film face.
Dependencies are inferred from the claim text.