公开(公告)号：US20210033118A1

公开(公告)日：2021-02-04

申请号：US15733594

申请日：2019-04-26

申请人： Explotechnik AG

发明人： Hans Rüegg

IPC分类号： F15B15/19

摘要： A pneumatic actuator (4b), in particular for use in a pressure wave generator (1) comprises: a first piston surface (91) which acts counter to a gaseous working medium in a first volume (41), wherein a pressure in the first volume (41) effects an actuator force in a first direction upon the first piston surface (91); a second piston surface (92) which acts counter to the working medium in a second volume (42), wherein a pressure in the second volume (42) effects an actuator force in a second direction opposite to the first direction, upon the second piston surface (92); a throttle between the first volume (41) and the second volume (42); an inlet/outlet opening (45) of the first volume (41) for bringing the working medium into and discharging it out of, the first volume; wherein the first piston surface (91) is larger than the second piston surface (92).

公开(公告)号：US20230010643A1

公开(公告)日：2023-01-12

申请号：US17754023

申请日：2020-10-20

申请人： Hans Rüegg ,  Explotechnik AG

发明人： Hans Rüegg

IPC分类号： F04B19/04 ,  F04B7/02 ,  F04B53/08

摘要： A method of operating a pressure wave generator (1) with a pressure chamber (2), wherein the pressure wave generator (1) comprises a closure element (9) which, in a closed position, closes the pressure chamber (2) with respect to an outlet (15) and, in an open position, —allows a working medium to flow out of the pressure chamber (2) into the outlet (15); an actuator by means of which the closure element (9) can be brought from the closed position into the open position and, in particular, can also be brought from the open position into the closed position; wherein the method comprises repeatedly performing the following steps: filling the pressure chamber (2) with a gaseous working medium at a pressure of over one hundred bar; moving the actuator and thereby moving the closure element (9) in an opening direction to open the pressure chamber (2) with respect to the outlet (15), and discharging the pressurized working medium from the pressure chamber (2) through the outlet (15) within a discharge time period of less than fifteen milliseconds.

公开(公告)号：US10359004B2

公开(公告)日：2019-07-23

申请号：US15311870

申请日：2015-05-18

申请人： Explotechnik AG

发明人： Hans Rüegg

IPC分类号： F02K1/15 ,  F02K1/08 ,  F02K7/06 ,  F02K7/02 ,  F02K9/44 ,  F02K9/52 ,  F02K9/58 ,  F23R7/00 ,  F02K9/86 ,  F02K9/97 ,  F02B71/06

摘要： A device for the repeated production of explosions includes an explosion space, a feed conduit for feeding a flowable, explosive material, a discharge opening for the directed discharge of a gas pressure produced by the ignition of the explosive material in the explosion space, and a movable closure element for the partial or complete closure of the discharge opening. The device includes an exit nozzle with a nozzle entry area and a nozzle exit area, as well as an actuation device. The actuation device is adapted, after an opening of the discharge opening and an outflow of explosion gases through the exit nozzle, to adjust an area ratio between the nozzle entry area and the nozzle exit area. The area ratio at least approximately follows an ideal area ratio for the production of a maximal exit speed of the explosion gases, in dependence on the pressure in the explosion space.