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公开(公告)号：CA2225329A1
公开(公告)日：1998-07-16
申请号：CA2225329
申请日：1997-12-19
Applicant: APPLIED POWER INC , APPLIED POWER INC
Inventor： TEETER MICHAEL R , KEITH KENNETH E , NAJAND MOHAMMAD J
Abstract: A suspension system attaches an engine to a vehicle frame and includes resilient mounts that are relatively soft with respect to vibrational movement of the engine along horizontal and vertical axes. This soft connection reduces transmission of vibration from the engine to the vehicle frame. The suspension system also provides a pair of hydraulic restrainers mounted on opposite sides of the engine which react equally, but in opposite directions to loads. The hydraulic restrainers are relatively stiff with respect to torsion that results from engine rotation, yet is soft with respect to translational movement of the engine.
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2.发明专利
公开(公告)号：JPS6156875A
公开(公告)日：1986-03-22
申请号：JP11771385
申请日：1985-06-01
Applicant: Applied Power Inc
IPC: B25B21/00
CPC classification number: B25B21/005
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公开(公告)号：JPH11236945A
公开(公告)日：1999-08-31
申请号：JP34964298
申请日：1998-12-09
Applicant: APPLIED POWER INC
Inventor： BAILEY DONALD C , PARK CHAN , VON FLOTOW ANDREAS H , JENSEN WILLIAM
Abstract: PROBLEM TO BE SOLVED: To provide a vibration absorber capable of changing the resonance frequency thereof by following a change of the vibration frequency to be generated with a change of the engine speed of aircraft. SOLUTION: In a vibration lower device having a mount 4o to be fitted to a vibrator such as an airframe of air plane, a plate 28 is separated from the mount 40 by a block 54. A first elastic link 60 is compressed between the block body 54 and the mount 40. A second link 62 is compressed between the block body 54 and the plate 28. The link 62 works as a spring having rigidity for determining the resonance I frequency for vibrating the block body 54. Vibration of the vibrator is absorbed by the movement of the block body 54 for absorbing the vibration energy, and the absorption of the vibration energy becomes the minimum when the block body 54 resonates at the vibration frequency. A controller senses vibration of the vibrator, and operates a mechanism for changing a space between the mount 40 and the plate 28 so as to adjust the rigidity of the spring. Rigidity of the spring is changed till the resonance frequency of the block body 54 is adjusted at the vibration frequency of the vibrator.
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公开(公告)号：JPH0930267A
公开(公告)日：1997-02-04
申请号：JP17843795
申请日：1995-07-14
Applicant: APPLIED POWER INC
Inventor： RAURENTEIASU ANDOREASU GERARUD
Abstract: PROBLEM TO BE SOLVED: To save the number of set up equipment items so as to attain compactness of a device total unit, by skillfully combining a pump, flow pipe, electrically operated valve and a check valve. SOLUTION: A compression side is replaced with a suction side by reversing a direction of rotation of a pump 2. A connection pipe of the pump 2 is connected, in one hand, to a storage tank 5 through a suction shuttle valve 6, in the other hand, to electrically operated valves 11, 12 connected to piston cylinder devices A, A', B and connected to respectively the piston cylinder devices A, A', B via check valves 11a, 12a positioned in a pump side of these electrically operated valves. A space on a piston of the piston cylinder devices A, A', B, in the one side piston cylinder devices A, A' in a position in a side of the pump 2 of the check valve 11a and in the other piston cylinder device B in a position of the check valve 12a and the electrically operated valve 12 connected thereto, is connected to the same suction/compression flow pipe of the pump.
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公开(公告)号：JPH0361777A
公开(公告)日：1991-03-18
申请号：JP9747790
申请日：1990-04-12
Applicant: APPLIED POWER INC
Inventor： DEERU EI NATSUTOSON
Abstract: PURPOSE: To actuate a valve at high speed by constituting the valve to regulate a flow of fluid between two chambers by driving an armature movable in the axial direction by an electromagnet and a permanent magnet and opening and closing a poppet valve by its reciprocation. CONSTITUTION: An armature 20 is driven in its axial direction by an electromagnet 32 and a permanent magnet 30, and a coil 32 is controlled in timing of an electric current and polarity by an electric power source unit 44. When the coil 32 is electrified, force to open is generated by combination of the permanent magnet 30 and the coil 32, a valve of a poppet 50 starts to open and the valve continuously continues motion to open by the aforementioned force to open. When the armature 20 reaches a position where the valve is completely opened, the electric current is put off but it maintains a state to open by force of a spring 54 and the permanent magnet 30. Thereafter, when it is reelectrified, the polarity becomes reverse, the armature 20 moves in the opposite direction, the valve starts to close, and when the armature 20 reaches a position to completely close, the electric current is put off, and a closed state is maintained by force of the permanent magnet 30. Thereafter, when it is electrified, the aforementioned cycle is repeated.
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Patent Agency Ranking
公开(公告)号：JPH01257538A
公开(公告)日：1989-10-13
申请号：JP29716788
申请日：1988-11-24
Applicant: APPLIED POWER INC
Inventor： DAGURASU PII MIRAA
Abstract: PURPOSE: To realize a multifunction by checking the inflow of fluid to a lower chamber from a second actuating means by a check valve means, and moving a first actuating means toward a fluid checking position when the first actuating means is put in a nonoperable state. CONSTITUTION: A workpiece engaging head 38 rises after working pressure P is impressed on the lower side 21 of an upper piston 18 since a check valve 39 opens when a solenoid operation valve A is turned on and B is turned off. Next, when both valves A, B are turned on, the working pressure P is also impressed on the under surface of a lower piston 24 while the check valve 39 is opened as it is, so that a piston 24 rises/rotates along a spiral shaft to rotate a head 38 by 90 deg.. Next, when A is turned off while the valve B is turned on as it is, since the check valve 39 closes/holds the piston 24 in an upward moved state, the working pressure P acts on the upper surface 20 of the upper piston 18, so that the workpiece engaging head 38 moves downward to clamp a workpiece 76 on the support table 75 surface. Thus, a multifunction can be realized by successively or independently performing desired operation.
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公开(公告)号：JPH1172138A
公开(公告)日：1999-03-16
申请号：JP10782598
申请日：1998-04-17
Applicant: APPLIED POWER INC
Inventor： VON FLOTOW ANDREAS H , MERCADAL MATHIEU , SCRIBNER KELVIN B , MIXON TIMOTHY , ROESELER CORYDON
Abstract: PROBLEM TO BE SOLVED: To absorb energy of time cycle vibration of a structural member by hanging a mass body from a mount base between rods to constitute a flexible body type spring assembly and changing the stiffness of a spring by a tuning mechanism by the adjustment of tensile force in the rods and compression. SOLUTION: A durable mass body 32 is positioned in a cavity 34 in an external housing 31 and is arranged at a fixed interval from a closed end part of the housing by a first flexible body assembly 36. The first flexible body assembly 36 has a rod 40 and circular rings 37, 38 which are parallel each other. A second flexible body 55 is formed by a flexible rod 59 having a circular cross section and circular rings 57 and 58 which are in parallel. By changing the compression force which acts on the rods 40 and 59 of the flexible body assembly, the stiffness of a spring is changed to change resonance frequency and maintain the optimum adjustment of a vibration absorber. Consequently, it is possible to absorb vibration energy due to the vibration of the durable mass body 32 in the optimum condition.
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公开(公告)号：JPH0854039A
公开(公告)日：1996-02-27
申请号：JP5162795
申请日：1995-03-10
Applicant: APPLIED POWER INC
Inventor： DEERU DABURIYU SHIYUUBERUTO , ANDORIYUU MAIKERU BIAADO , SUTEIIBUN FURANKU SHIEDO , MARION RICHIYAADO AARUSU JIYUN , ANDOREASU EICHI BUAN FUROTAU
Abstract: PURPOSE: To secure stability by extremely enhancing feedback loop gain of a system for actively isolating vibration up to a low frequency band, and setting the gain of the system to a low value in a resonance frequency of a supported payload and an active element. CONSTITUTION: An active vibration isolation system 10 includes a plurality of stiff actuators such as piezoelectric motors 12a-c which support a small mass 18 inside a case. A passive isolator 20 is inserted between the small mass 18 and a payload mass Mp. A compensating circuit is connected between a speed sensor 17 and the stiff actuators to adjust the variable length of the latter in this 'move-out-of-the-way' system 10 to compensate for a resonance mode. Optionally, a payload mass velocity sensor 26 and associated circuitry may be arranged to provide additional control. Shear decouplers are used in conjunction with piezoelectric motor elements to minimize the amount of shear force acting on the motor elements.
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公开(公告)号：JPH01145401A
公开(公告)日：1989-06-07
申请号：JP24972588
申请日：1988-10-03
Applicant: APPLIED POWER INC
Inventor： JIEEMUZU PATORITSUKU JIYANETSU
IPC: F15B11/05 , F15B13/04 , F15B13/042
Abstract: PURPOSE: To miniaturize an entire body of a device by providing regulator spools changing an orifice opening in accordance with a pressure produced by reversely developing a load pressure and a feedback pressure within a vertical compartment. CONSTITUTION: An upper edge of a regulator segment 24 is sealed with a plug 38. A regulator spool 46 pushed by an eccentric spring 54 and having a metering land 50 and an upper land 52 is provided within a sealed space. A load pressure is developed to a spring chamber of the regulator spool 46 and a feedback pressure is developed at the bottom surface 16 of the regulator spool 46. This allows to disuse a special sleeve or a differential area for regulating a flow to a switch road, so it is possible to minimize an entire body of a device.
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公开(公告)号：JPH10315790A
公开(公告)日：1998-12-02
申请号：JP693598
申请日：1998-01-16
Applicant: APPLIED POWER INC
Inventor： NAJAND MOHAMMED J , TEETER MICHAEL R , KEITH KENNETH E
Abstract: PROBLEM TO BE SOLVED: To provide an elastic mounting system reducing transmission of vibration between a body which is a vibration source, and a structural member for supporting the body, and provide mechanism for mounting the vibrating body on support structure in such a way as to maintain low translation rigidity for minimizing transmission of vibration from the body to support body while providing high torsional rigidity to torque load of the body. SOLUTION: A suspension system fits an engine 10 to a vehicle frame 16 and includes an elastic mount relatively flexible to the vibrating action of the engine 10 along horizontal and vertical axes. The suppression system has a pair of hydrylic repressors 46, 48 mounted on the opposed side faces of the engine 10 and reacting in opposite directions to load but equally. The hydraulic repressors 46, 48 are relatively firm to torsion generated as a result of rotation of the engine but flexible to translation of the engine 10.
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