US 2014/0191549 A1Published application

Solenoid Valve Assembly For A Seat Of A Vehicle

AssigneeKongsberg Automotive AB

InventorBengt Hermansson

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Abstract

The present invention provides for a solenoid valve assembly including a housing (32) defining a cavity (34). A support (48) is disposed in the cavity and defines a bore (50). A coil (60) is disposed about the support and defines an energized state for generating a magnetic field and a de-energized state. A plunger (74) is movably disposed in the bore of the support between a first position engaging the housing and a second position spaced from the housing. The plunger is radially spaced from the support to define a gap (76) between the plunger and the support. A dampener (86) is coupled to one of the support and the plunger adjacent the gap to prevent direct engagement between the support and the plunger as the plunger moves between the first and second positions during the energized and de-energized states for reducing noise during operation.

Claims23

Dependent claims

A solenoid valve assembly (30) comprising a housing (32) defining a cavity (34);

a support (48) disposed in said cavity (34) and defining a bore (50) along a longitudinal axis;
a coil (60) disposed about said support (48) and defining an energized state for generating a magnetic field and a de-energized state;
a plunger (74) moveably disposed in said bore (50) of said support (48) between a first position engaging said housing (32) and a second position spaced from said housing (32) with said plunger (74) radially spaced from said support (48) relative to said longitudinal axis to define a gap (76) between said plunger (74) and said support (48);
and
a dampener (86) coupled to one of said support (48) and said plunger (74) adjacent said gap (76) with said dampener (86) extending into said gap (76) to define a space between said dampener (86) and the other of said plunger (74) and said support (48) when in said first position with said dampener (86) at least partially maintaining said gap (76) to prevent direct engagement between said support (48) and said plunger (74) as said plunger (74) moves between said first and second positions during said energized and de-energized states for reducing noise during operation.

2 more elements

A seat assembly (20) for a vehicle including the solenoid valve assembly (30) according to any preceding claim, said seat assembly (20) comprising:

a seat frame (22) mounted to said solenoid valve assembly (30);
and
a bladder (24) coupled to said seat frame (22) and coupled to said solenoid valve assembly (30) and defining an inflate position with said bladder (24) inflated and a deflate position with said bladder (24) deflated.

Dependencies are inferred from the claim text.

Facts

Application: 14/233,656Filed 20 Jul 2011
Published: 10 Jul 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

F16K 31/0696
Braking, pressure equilibration, shock absorbing: shock absorbing, e.g. using a dash-pot
B60N 2/7082
Springs: with air or fluid cushions
B60N 2/914
Details or parts not otherwise provided for: hydro-pneumatic adjustments of the shape
F16K 27/029
Of lift valves: electromagnetically actuated valves

Family

US 9,677,683 B2Related patent
US 2014/0191549 A1This patent

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

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