Temperature sensitive valve mechanism
AssigneeYamada Manufacturing Co., Ltd.
InventorsJunichi Miyajima, Kazuo Shoji, Yuya Kato
Life of this patent
Estimating the term…
Abstract
A pump housing has a main oil passage, a return oil passage provided substantially in parallel with the main oil passage, and a valve insertion hole extending across the main oil passage such that a closed fore end of the valve insertion hole reaches in the vicinity of the return oil passage. The valve insertion hole has a female screw formed at an open end thereof, and a through-hole is formed in the pump housing, having one end connected to the valve insertion hole at a portion adjacent to the closed fore end thereof and an opposite end opened to the outside of the pump housing. With the valve insertion hole thus provided, a temperature sensitive valve mechanism can be readily inserted in the valve insertion hole at any time.
Claims10
A temperature sensitive valve mechanism mounted in a structural member having an oil passage so as to release a lubricating oil to an outside of the oil passage in response to a temperature of the lubricating oil flowing in the oil passage, the temperature sensitive valve mechanism comprising:
- a fixing part fixed to the structural member;
- a thermoelement disposed in the oil passage and having a first end supported by or made in contact with the fixing part;
- a valve element fixed to a second opposite end of the thermoelement;
- a valve casing surrounding the valve element;
- and
- a connecting part extending from the fixing part in such a manner as to surround the valve element and supporting the valve casing, the connecting part having oil passage through-holes for allowing the lubricating oil to pass therethrough and hit on the thermoelement,
- wherein the valve casing has a discharge port adapted to be opened and closed by the valve element for releasing the lubricating oil therefrom to the outside of the oil passage, and
- wherein the connecting part is ioined to the fixing part via a clenched portion or a screw-connected portion.
A temperature sensitive valve mechanism mounted in a structural member having an oil passage so as to release a lubricating oil to an outside of the oil passage in response to a temperature of the lubricating oil flowing in the oil passage, the temperature sensitive valve mechanism comprising:
- a fixing part fixed to the structural member;
- a thermoelement disposed in the oil passage and having a first end supported by or made in contact with the fixing part;
- a valve element fixed to a second opposite end of the thermoelement;
- a valve casing surrounding the valve element;
- and
- a connecting part extending from the fixing part in such a manner as to surround the valve element and supporting the valve casing, the connecting part having oil passage through-holes for allowing the lubricating oil to pass therethrough and hit on the thermoelement,
- wherein the valve casing has a discharge port adapted to be opened and closed by the valve element for releasing the lubricating oil therefrom to the outside of the oil passage, and
- wherein the connecting part is joined to the fixing part via a circlip.
A temperature sensitive valve mechanism mounted in a structural member having an oil passage so as to release a lubricating oil to an outside of the oil passage in response to a temperature of the lubricating oil flowing in the oil passage, the temperature sensitive valve mechanism comprising:
- a fixing part fixed to the structural member;
- a thermoelement disposed in the oil passage and having a first end supported by or made in contact with the fixing part;
- a valve element fixed to a second opposite end of the thermoelement;
- a valve casing surrounding the valve element;
- and
- a connecting part extending from the fixing part in such a manner as to surround the valve element and supporting the valve casing, the connecting part having oil passage through-holes for allowing the lubricating oil to pass therethrough and hit on the thermoelement,
- wherein the valve casing has a discharge port adapted to be opened and closed by the valve element for releasing the lubricating oil therefrom to the outside of the oil passage, and
- wherein the structural member is a cylinder block of an engine, and the cylinder block has a wall or a plate disposed such that the lubricating oil discharged from the discharge port hits on the wall or the plate before dropping into an oil reservoir of the cylinder block.
Dependencies are inferred from the claim text.