Strainer

Patent metadata

Field	Value
Publication number	US-11229864-B2
Application number	US-202017031286-A
Country	US
Kind code	B2
Filing date	Sep 24, 2020
Priority date	Apr 25, 2018
Publication date	Jan 25, 2022
Grant date	Jan 25, 2022

Abstract

A liquid surface height inside a tank is allowed to be confirmed while blow-back of a liquid is reduced. A strainer body having a substantially bottomed tubular shape has a substantially D shape when viewed in a longitudinal direction. A bottom surface of the strainer body has a shape in which a part of a conical shape is cut away, and a top of the substantially conical shape overlaps with a notched portion notched to form the substantially D shape. The bottom surface protrudes toward an opening of the strainer body. A rod is provided adjacent to the notched portion of the strainer body, and a float is provided on a lower end of the rod.

First claim

The invention claimed is:

1. A strainer provided inside an injection port for injection of a liquid into a tank body, the strainer, comprising:
a strainer body having a bottomed tubular shape that includes a side surface and a bottom surface, the side surface including a net-like body through which the liquid is passable, the net-like body being absent on the bottom surface, the liquid being not passable through the bottom surface;
a rod provided adjacent to the strainer body, the rod being provided along a first direction as a longitudinal direction of the strainer body;
a guide portion that regulates a moving direction of the rod such that the rod moves along the first direction; and
a float disposed on a distal end on the bottom surface side of the rod, wherein
the side surface has a substantially D shape when viewed in the first direction, the side surface includes a notched portion and a curved surface portion other than the notched portion, and the notched portion is cut away so as to form the substantially D shape,
the rod is provided at a position overlapping with a circle as a n extension of the curved surface portion and a position adjacent to the notched portion when viewed in the first direction, and
the bottom surface has a shape in which a part of a conical shape is cut away and protrudes toward an opening of the strainer body, and a top of the conical shape overlaps with the notched portion,
wherein
the guide portions are two rod shaped bodies extending from the bottom surface so as to protrude in the first direction,
the float has a tubular shape,
both sides of the float are sandwiched between the two rod shaped bodies, and
a position of the float overlaps with a position of the bottom surface when viewed in the first direction.

2. The strainer according to claim 1 , wherein
the net-like body is provided on the notched portion in a part above the bottom surface.

3. The strainer according to claim 1 , wherein
an angle formed by a generatrix of the bottom surface and a horizontal plane is approximately 60 degrees.

4. A strainer provided inside an injection port for injection of a liquid into a tank body, the strainer, comprising:
a strainer body having a bottomed tubular shape that includes a side surface and a bottom surface, the side surface including a net-like body through which the liquid is passable, the net-like body being absent on the bottom surface, the liquid being not passable through the bottom surface;
a rod provided adjacent to the strainer body, the rod being provided along a first direction as a longitudinal direction of the strainer body;
a guide portion that regulates a moving direction of the rod such that the rod moves along the first direction; and
a float disposed on a distal end on the bottom surface side of the rod, wherein
the side surface has a substantially D shape when viewed in the first direction, the side surface includes a notched portion and a curved surface portion other than the notched portion, and the notched portion is cut away so as to form the substantially D shape,
the rod is provided at a position overlapping with a circle as an extension of the curved surface portion and a position adjacent to the notched portion when viewed in the first direction, and

the bottom surface has a shape in which a part of a conical shape is cut awa y a nd protrudes toward an opening of the strainer body, and a top of the conical shape overlaps with the notched portion,
wherein the net-like body is provided on the notched portion in a part above the bottom surface.

5. The strainer according to claim 4 , wherein
an angle formed by a generatrix of the bottom surface and a horizontal plane is approximately 60 degrees.

6. A strainer provided inside an injection port for injection of a liquid into a tank body, the strainer, comprising:
a strainer body having a bottomed tubular shape that includes a side surface and a bottom surface, the side surface including a net-like body through which the liquid is passable, the net-like body being absent on the bottom surface, the liquid being not passable through the bottom surface;
a rod provided adjacent to the strainer body, the rod being provided along a first direction as a longitudinal direction of the strainer body;
a guide portion that regulates a moving direction of the rod such that the rod moves along the first direction; and
a float disposed on a distal end on the bottom surface side of the rod, wherein
the side surface has a substantially D shape when viewed in the first direction, the side surface includes a notched portion and a curved surface portion other than the notched portion, and the notched portion is cut away so as to form the substantially D shape,
the rod is provided at a position overlapping with a circle as an extension of the curved surface portion and a position adjacent to the notched portion when viewed in the first direction, and

the bottom surface has a shape in which a part of a conical shape is cut away and protrudes toward an opening of the strainer body, and a top of the conical shape overlaps with the notched portion,
wherein an angle formed by a generatrix of the bottom surface and a horizontal plane is approximately 60 degrees.

Assignees

• Yamashin Filter Corp

Inventors

• NODOMI Youichi
• TANGE Takazumi
• Wakabayashi Masanori

Classifications

• F01M11/0004

  Oilsumps · CPC title

• F01M2011/007

  Oil pickup tube to oil pump, e.g. strainer · CPC title

• B01D35/027 Primary

  rigidly mounted in or on tanks or reservoirs (B01D35/04 takes precedence) · CPC title

• B01D2201/02

  Filtering elements having a conical form · CPC title

• B01D35/0276

  Filtering elements with a vertical rotation or symmetry axis mounted on tanks or reservoirs · CPC title