US 7,611,121 B2Granted

Solenoid control device

AssigneeEagle Industry Co., Ltd.

InventorsToshiaki Iwa, Shinji Sasaki, Ichiro Hirata, Norio Uemura

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Abstract

A case main body and an upper plate are reliably fitted together, a seal is formed between the fitting surfaces, and a magnetic circuit is prevented from malfunctioning. A solenoid-controlled valve, which connects a solenoid section (2) and a valve section (30), comprises a cylindrical case main body (3) having a solenoid coil (4) housed therein and having a connecting section (3A) at one end, an upper plate (6) having a locking surface (6B) adapted to be fitted to the connecting section (3A), and a connector (5) integrally provided with the upper plate (6). A seal section (20) is joined to an outer surface between the fitting surfaces of the connecting section (3A) and the upper plate (6).

Claims4

Dependent claims

A solenoid control valve in which a solenoid portion and a valve portion are joined with each other, said solenoid control valve comprising:

(a) a casing main body made of conductive material, having a joint portion on the free end side of a cylindrical portion which contains a solenoid coil therewithin;
(b) an upper plate made of conductive material, having an engagement surface of an annular shape formed on a peripheral surface of a flange and a cylindrical portion protruding from the flange portion to a direction opposite to the solenoid coil, said engagement surface being fitted to said joint portion;
(c) a connector made of resin, formed integrally with said upper plate into one piece so that the cylindrical portion of the upper plate inserted into the connector;
(d) a seal portion attached on an upper surface between an end portion of said joint portion and a peripheral face of the connector;
and
(e) a tube of cylindrical design in which a movable core is movably fitted and a fixed core is securely fixed,
wherein the casing main body and the upper plate are directly joined at the joint portion so that both end portions of the tube are held in a coaxial manner by means of a base portion of the casing main body and a fitting surface of the upper plate.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/632,278Filed 15 Jul 2005
Priority: JP 2004-21041316 Jul 2004
Published: US 2008/0164434 A110 Jul 2008
Granted: 3 Nov 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

F16K 31/0668
One-way valve: sliding valves
F04B 27/1804
By varying the relative positions of a swash plate and a cylinder block: controlled by crankcase pressure
F16K 31/0613
Sliding valves: with cylindrical slides
F04B 2027/1827
Valve-controlled fluid connection: between crankcase and discharge chamber

Family

US 2008/0164434 A1Pre-grant publication · published 10 Jul 2008
US 7,611,121 B2This patent

From the US filing history. Foreign family members aren’t listed.

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