公开(公告)号：US11808373B2

公开(公告)日：2023-11-07

申请号：US17622620

申请日：2020-02-28

申请人： SATAKE CORPORATION ,  MECHANO TRANSFORMER CORPORATION

发明人： Takafumi Ito ,  Tadashi Matsushita ,  Toshiro Higuchi ,  Sze Keat Chee ,  Yoshinobu Mizuno ,  Toshitada Hirata

IPC分类号： F16K31/00 ,  F16K27/02 ,  F16K1/54

CPC分类号： F16K31/008 ,  F16K1/54 ,  F16K27/029 ,  F16K31/007 ,  F16K2200/50

摘要： A piezoelectric valve includes: a valve main part including a gas pressure chamber receiving compressed gas supplied from outside; a plate inside the valve main part, and an actuator fixed to the plate and inside the valve main part, which is a case with an opening on a front surface. The plate includes a gas discharge path and a valve seat coming into contact with a valve element of the actuator opening and closing the gas discharge path. A lid member that closes the opening of the case has a gas discharge opening communicating with the gas discharge path of the plate; is welded and fixed to a front surface of the plate, where the gas discharge path opens, on an annular welded part surrounding the gas discharge opening; and is welded and fixed to an end surface of the case on an annular welded part on the outer peripheral part.

公开(公告)号：US12004430B2

公开(公告)日：2024-06-04

申请号：US17605914

申请日：2020-01-22

申请人： SATAKE CORPORATION ,  MECHANO TRANSFORMER CORPORATION

发明人： Takafumi Ito ,  Tadashi Matsushita ,  Toshiro Higuchi ,  Sze Keat Chee ,  Yoshinobu Mizuno

IPC分类号： H10N30/88 ,  F16K31/00 ,  F16K31/02 ,  F16K31/44 ,  H02N2/04 ,  H10N30/20 ,  H10N30/50

CPC分类号： H10N30/88 ,  F16K31/007 ,  F16K31/02 ,  F16K31/44 ,  H02N2/04 ,  H02N2/043 ,  H10N30/50 ,  H10N30/883 ,  F16K31/004 ,  H10N30/20

摘要： Provided is a piezoelectric valve in which the valve is opened/closed utilizing a displacement of a laminated piezoelectric element, including: a valve main body having a gas pressure chamber that receives compressed gas supplied externally; and an actuator having a valving element, the laminated piezoelectric element that generates a driving force required for operating the valving element as the displacement, and a displacement enlarging mechanism that enlarges the displacement of the laminated piezoelectric element to be acted on the valving element, the actuator being disposed in the valve main body, in which a surface of the laminated piezoelectric element is coated with silicone in a state in which the laminated piezoelectric element is integrated into the actuator.