公开(公告)号：US11028768B2

公开(公告)日：2021-06-08

申请号：US16748016

申请日：2020-01-21

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Bruno Villeneuve ,  Edwin Schulz

IPC: F02B3/04 ,  F02B53/10 ,  F02B55/16 ,  F02B53/00 ,  F02B19/00 ,  F02B19/12 ,  F02B53/04 ,  F01C21/06 ,  F01C1/344 ,  F01C21/10 ,  F01C1/22 ,  F01C21/18 ,  F01C20/28

Abstract: A rotary engine having an outer body having an internal cavity with a peripheral wall having an insert opening defined therethrough in communication with the internal cavity, and a plurality of coolant passages defined through the peripheral wall in proximity of the insert opening, a rotor body rotatable within the internal cavity, and an insert removably received in the insert opening of the peripheral wall, the insert having a subchamber defined therein communicating with the internal cavity, with a minimum width of the insert opening being at least 0.75 inches. An outer body for a rotary engine and a method of inspecting in an internal cavity in an outer body of a rotary engine are also discussed; also, a rotary engine including a fuel injector having a tip received in the injector hole of the peripheral wall without protruding in the insert opening.

公开(公告)号：US20210054741A1

公开(公告)日：2021-02-25

申请号：US17092447

申请日：2020-11-09

Applicant: ABB Schweiz Ag

Inventor： Camilo Lopez ,  Mark Foltz ,  Steve Miller ,  Kevin Dowdell ,  Mark Wieland ,  Alan Majors

IPC: F01C20/28 ,  G01R31/28 ,  G01P21/02

Abstract: A turbine speed probe diagnostic system is provided. The turbine includes a speed probe and a speed reading circuit. A speed lead connects the speed probe and speed reading circuit together to transmit speed signals from the speed probe to the speed reading circuit. A speed probe diagnostic circuit is also provided for connection to the speed lead. An isolation switch is provided to isolate the speed probe diagnostic circuit during normal operation when the speed reading circuit is receiving speed signals from the speed probe. When no speed signals are being received, the isolation switch closes and the speed probe diagnostic circuit performs a test on the speed probe or speed lead.

公开(公告)号：US20180258844A1

公开(公告)日：2018-09-13

申请号：US15978081

申请日：2018-05-11

Applicant: National Chung-Shan Institute of Science and Technology

Inventor： DUN-ZEN JENG ,  MING-CHUN HSIEH ,  CHIH-CHUAN LEE ,  TING-HUA CHIEH

IPC: F02B53/04 ,  F01C21/18 ,  F01C20/28 ,  F02B53/02

CPC classification number: F02B53/04 ,  F01C1/22 ,  F01C20/28 ,  F01C21/186 ,  F02B53/02 ,  F02B55/02 ,  F02B55/08 ,  F04C2240/806 ,  Y02T10/17

Abstract: An intake/outlet pipe optimization method for a rotary engine, comprising the steps of: (A) providing a rotary engine; (B) providing a simulation software package, to perform a series of simulations for the rotary engine according to different combinations of a pipe length, a pipe diameter, a pipe shape and a pipe angle, to determine an optimal combination of the pipe length, the pipe diameter, the pipe shape, and pipe angle, to obtain an optimal power output for the rotary engine; and (C) performing tests for the rotary engine, by utilizing the optimal combination of the pipe length, the pipe diameter, the pipe shape, and pipe angle obtained in step (B), to obtain a test optimized power output for the rotary engine.

公开(公告)号：US20160201464A1

公开(公告)日：2016-07-14

申请号：US15077903

申请日：2016-03-22

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dun-Zen Jeng ,  Ming-Chun Hsieh ,  Chih-Chuan Lee ,  Ting-Hua Chieh

IPC: F01C21/18 ,  F01C1/22 ,  F01C20/28

CPC classification number: F01C21/186 ,  F01C1/22 ,  F01C20/28 ,  F01C21/18 ,  F02B53/04 ,  F02B55/02 ,  F02B55/08 ,  F04C15/06 ,  Y02T10/17

Abstract: An intake/outlet pipe optimization method includes the steps of providing a rotary engine, measuring the pressure in an operation of the engine, designing the appearance of the intake/outlet pipes, adjusting the pressure wave in an air pipe and the pressure in an air chamber of the engine to increase the air intake and improve the output horsepower of the engine. The intake pipe is a tapered pipe having the pipe diameter on an intake side greater than the pipe diameter on the engine side; and the outlet pipe is an inversely tapered pipe having the pipe diameter on the engine side smaller than the pipe diameter on the outlet side.

Abstract translation: 进/出管优化方法包括以下步骤：提供旋转发动机，测量发动机运转中的压力，设计进/出管的外观，调节空气管中的压力波和空气中的压力 发动机舱增加进气量，提高发动机的输出功率。 进气管是一个锥形管，其管径在进气侧大于发动机侧的管直径; 出口管是发动机侧的管径小于出口侧的管径的逆锥形管。

公开(公告)号：US09382872B2

公开(公告)日：2016-07-05

申请号：US14098272

申请日：2013-12-05

Applicant: Texas A&M University

Inventor： Mark T. Holtzapple ,  George A. Rabroker

IPC: F01C1/30 ,  F03C2/00 ,  F03C4/00 ,  F04C2/00 ,  F02G1/02 ,  F04C11/00 ,  F04C18/08 ,  F04C29/04 ,  F01C1/10 ,  F01C11/00 ,  F01C17/02 ,  F01C19/08 ,  F01C20/28 ,  F01C21/00 ,  F01C21/02 ,  F01C21/04 ,  F01C21/06 ,  F01C21/10 ,  F02B41/06 ,  F02B75/02 ,  F02G3/02 ,  F04C2/10 ,  F04C18/10 ,  F04C29/00 ,  F02B53/00

CPC classification number: F02G1/02 ,  F01C1/10 ,  F01C1/103 ,  F01C1/104 ,  F01C11/002 ,  F01C11/004 ,  F01C17/02 ,  F01C19/085 ,  F01C20/28 ,  F01C21/008 ,  F01C21/02 ,  F01C21/04 ,  F01C21/06 ,  F01C21/10 ,  F01C21/102 ,  F02B41/06 ,  F02B53/00 ,  F02B75/02 ,  F02G3/02 ,  F02G2250/03 ,  F04C2/105 ,  F04C11/001 ,  F04C18/08 ,  F04C18/082 ,  F04C18/10 ,  F04C29/0085 ,  F04C29/042 ,  F04C2230/601 ,  F04C2230/602 ,  Y02T10/17

Abstract: According to one embodiment of the invention, a gerotor apparatus includes an outer gerotor having an outer gerotor chamber, an inner gerotor, at least a portion of which is disposed within the outer gerotor chamber, and a synchronizing apparatus operable to control the rotation of the inner gerotor relative to the outer gerotor. The inner gerotor includes one or more entrance passages operable to communicate a lubricant into the outer gerotor chamber.

公开(公告)号：US3930764A

公开(公告)日：1976-01-06

申请号：US536388

申请日：1974-12-26

Applicant: George R. Curtiss

Inventor： George R. Curtiss

IPC: B24B47/14 ,  F01B25/06 ,  F01B25/16 ,  F01C20/28 ,  F01C21/12 ,  G05D13/10

CPC classification number: F01B25/06 ,  F01C20/28 ,  Y10T137/1026 ,  Y10T137/1153

Abstract: An overspeed shutoff device for use in a rotary pneumatic tool is disclosed. The device is operable to shut off air supply to the motor on failure of its governor to function properly in preventing overspeeding of the motor. The device includes a valve closing plate positioned in the path of air flow to the pneumatic motor, just upstream of an inlet port for passage of air into the motor. In normal operation of the tool the valve plate, which rotates with the motor drive shaft, is retained in a position spaced from the air inlet port by a locking mechanism engaging the drive shaft of the tool to prevent axial movement therealong. The plate locking device comprises a cantilever mounted spring wire in engagement with a groove in the drive shaft and a centrifugally responsive weight operably connected to disengage the wire from the groove in response to the attainment of a predetermined rotary speed. Upon failure of the main governor of the tool and consequent acceleration of the motor to such predetermined speed, the wire is disengaged from the shaft groove and the air pressure drop across the valve inlet port causes the closure plate to move toward and cover the inlet port, thereby stopping the flow of air to the motor.

公开(公告)号：US3767332A

公开(公告)日：1973-10-23

申请号：US3767332D

申请日：1971-08-16

Applicant: BLACK & DECKER MFG CO

Inventor： HUFFAKER D ,  WICKHAM J ,  WORDSWORTH A

IPC: G05D13/04 ,  B23Q11/00 ,  B24B47/18 ,  B24B55/00 ,  F01B25/16 ,  F01C13/02 ,  F01C20/08 ,  F01C20/28 ,  G05D13/38 ,  F01C21/12 ,  F04C15/02 ,  F04C29/08

CPC classification number: B24B55/00 ,  F01C20/08 ,  F01C20/28 ,  Y10T137/1153

Abstract: A powered rotary grinder including a vane-type fluid motor having a rotor supported within a housing. Pressurized fluid is admitted to the motor through a control valve to drive the rotor. A pivoted lever is engageable with the control valve and is actuated by flyweights attached to the rotor to regulate the speed of the rotor. The control valve includes normally latched, stored energy means which, when released, slams the control valve completely shut to cut off flow of pressurized fluid to the motor. A centrifugally actuated weight or weights interconnected with the rotor are operable to release the latched stored energy means should the rotor overspeed and the regulator fail to operate. In one embodiment, the weights include interengaged means which require that all the weights move radially outwardly of the rotor conjointly to effect release of the latched, stored energy means. This interengaged means insures that only centrifugal force can move the weights and that they cannot accidentally or unintentionally move to effect release of the stored energy means in the event, for example, the grinder is dropped or is otherwise struck with a sharp blow.

Abstract translation: 一种动力旋转研磨机，包括具有支撑在壳体内的转子的叶片型流体马达。 加压流体通过控制阀进入电动机以驱动转子。 枢转杠杆可与控制阀啮合，并通过连接在转子上的飞轮来驱动，以调节转子的转速。 控制阀包括通常锁定的储存能量装置，当释放时，控制阀完全关闭，以切断加压流体到电动机的流动。 与转子互连的离心致动重量或重量可操作以在转子超速并且调节器不能操作时释放锁存的储能装置。 在一个实施例中，重物包括相互联接的装置，其需要所有的重物一起径向向外移动转子，以实现锁定的储存能量装置的释放。 这种相互接合的方式确保只有离心力可以移动重物，并且在例如磨碎机掉落或以其它方式冲击的情况下，它们不会意外或无意地移动以实现储存能量装置的释放。

公开(公告)号：US12140033B2

公开(公告)日：2024-11-12

申请号：US18494907

申请日：2023-10-26

Applicant: ABB Schweiz AG

Inventor： Camilo Lopez ,  Mark Foltz ,  Steve Miller ,  Kevin Dowdell ,  Mark Wieland ,  Alan Majors

IPC: F01C20/28 ,  F01D17/06 ,  F01D17/14 ,  F01D17/26 ,  F01D21/02 ,  F01K13/00 ,  F01K13/02 ,  F02C7/232 ,  F02C9/26 ,  F02C9/28 ,  F02C9/52 ,  F02C9/54 ,  F16K37/00 ,  G01P21/02 ,  G01R31/28 ,  H02J3/38 ,  H02J3/40

Abstract: A system for controlling a turbine valve is provided. The system includes a hydraulic pilot valve section being moveable in a first direction and a second direction; a main hydraulic valve section being moveable in a first direction to close the turbine valve and a second direction to open the turbine valve; a position demand indicating a desired position of the turbine valve; a first feedback indicating an actual position of the hydraulic pilot valve section; and aa second feedback indicating an actual position of the main hydraulic valve section. The system also includes a pilot valve error; a main valve error; a turbine valve error; and a pilot valve adjustment moving the hydraulic pilot valve section in response to the turbine valve error. The turbine valve error is repeatedly determined and the pilot valve adjustment repeatedly moves the hydraulic pilot valve section to minimize the turbine valve error.

公开(公告)号：US11225867B2

公开(公告)日：2022-01-18

申请号：US17092554

申请日：2020-11-09

Applicant: ABB Schweiz AG

Inventor： Camilo Lopez ,  Mark Foltz ,  Steve Miller ,  Kevin Dowdell ,  Mark Wieland ,  Alan Majors

IPC: H02J3/40 ,  H02J3/38 ,  F01C20/28 ,  G01P21/02 ,  G01R31/28 ,  F01D17/06 ,  F02C9/28 ,  F01D21/02

Abstract: A breaker between two electrical circuits is provided that is closed when electrical properties in both of the electrical circuits are matching. Two check circuits are provided for comparing electrical properties of the two electrical circuits. Each of the check circuits sets a corresponding authorization to close the breaker. The breaker is only closed if both check circuits set an authorization to close the circuit.

公开(公告)号：US10294793B2

公开(公告)日：2019-05-21

申请号：US15938143

申请日：2018-03-28

Applicant: Basintek, LLC

Inventor： Peter Thomas Cariveau ,  Timothy Mark Miller ,  Jing Lu

IPC: G01M99/00 ,  F01C20/28 ,  F01C1/10 ,  F04C2/107 ,  F03C2/08

Abstract: A method for measuring load performance of a positive displacement motor (PDM) test coupon. The test coupon comprises a partial length of a PDM stage and is received inside a sealable test chamber. In some embodiments, the test coupon may be cut from a failed PDM stage. The test chamber is filled with test fluid. In some embodiments, the test fluid may be drilling fluid sampled from a live well. Rotation of the rotor on the test coupon actuates rotation of the stator. A braking torque is applied to the stator rotation, enabling evaluation of, for example, fatigue load performance of test coupon. Additional embodiments comprise the rotor axis and the stator axis being offset in order to simulate rotor/stator eccentricity in a full size PDM stage.