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1. 发明申请

US20220381366A1 Hydraulic Control Valve with Duplicate Workports and Integrated Actuator Oscillation Control Features 有权
公开(公告)号：US20220381366A1
公开(公告)日：2022-12-01
申请号：US17883868
申请日：2022-08-09
申请人： Parker-Hannifin Corporation
发明人： Brian Slattery
IPC分类号： F16K31/42 , F15B1/033
摘要： An example valve assembly includes a first workport fluidly coupled to a first actuator; a second workport fluidly coupled to the first actuator; a third workport fluidly coupled to a second actuator, wherein the third workport is fluidly coupled to the first workport via a first fluid passage; a fourth workport fluidly coupled to the second actuator, wherein the fourth workport is fluidly coupled to the second workport via a second fluid passage; and a spool axially movable in a bore within the valve assembly, wherein when the spool is shifted axially in a first axial direction, pressurized fluid is provided to the first workport and to the third workport via the first fluid passage, and when the spool is shifted axially in a second axial direction opposite the first axial direction, pressurized fluid is provided to the second workport and to the fourth workport via the second fluid passage.

2. 发明授权

US11480200B2 Valve with anti-cavitation features 有权
公开(公告)号：US11480200B2
公开(公告)日：2022-10-25
申请号：US17261611
申请日：2019-07-24
申请人： Parker-Hannifin Corporation
发明人： Brian Slattery , Bipin Kashid
IPC分类号： F16K11/04 , F15B13/043 , F15B21/047 , F16K11/044
摘要： An example valve includes: (i) a valve body comprising a supply port and an operating port; (ii) a sleeve comprising a first opening fluidly coupled to the supply port, a second opening fluidly coupled to the operating port, and a seat; (in) a spool configured to move axially within the sleeve, wherein the spool is configured to he seated on the seat of the sleeve when the valve is unactuated, and wherein when the valve is actuated, the spool moves such that a gap is formed at the seat; and (iv) a flow restriction disposed downstream of the gap, wherein when the valve is actuated, fluid is allowed to flow from the supply port through the first opening and the gap and through die flow′ restriction prior to flowing through the second opening to the operating port, such that the flow restriction generates an increased pressure level at the gap.

3. 发明授权

US11067101B2 Hydraulic control valve configured to use a pilot signal as a substitute load-sense signal 有权
公开(公告)号：US11067101B2
公开(公告)日：2021-07-20
申请号：US16767181
申请日：2019-02-11
申请人： Parker-Hannifin Corporation
发明人： Brian Slattery , Micheal E. Harman
IPC分类号： F15B11/16 , G05D16/10 , G05D16/04 , E02F9/22 , F15B13/02 , F15B13/042
摘要： An example valve assembly is configured: generate a valve load-sense pressure signal indicative of a pressure level at a workport of an actuator; generate a pilot fluid signal to be communicated to a worksection of a valve assembly to enable shifting a spool in the worksection; compare a first pressure level of the valve load-sense pressure signal to a second pressure level of the pilot fluid signal; and communicate the pilot fluid signal to a load-sense port fluidly coupled to a load-sensing source of pressurized fluid when the second pressure level of the pilot fluid signal exceeds the first pressure level of the valve load-sense pressure signal.

4. 发明授权

US10590962B2 Directional control valve 有权
公开(公告)号：US10590962B2
公开(公告)日：2020-03-17
申请号：US15594772
申请日：2017-05-15
申请人： Parker-Hannifin Corporation
发明人： Gregory Thomas Coolidge , Brian Slattery , Kurt Boey
IPC分类号： F15B13/04 , F15B11/05 , F16K31/04 , F16K31/122 , F16K11/10 , F16K11/22 , F16K11/16 , F16K31/12
摘要： An example valve section includes: a valve body configured to be fluidly coupled to the source and the actuator; a spool movable in the valve body intermediate the source and the actuator; a pressure compensator valve disposed upstream from the spool and configured to regulate flow received from the source, where the valve body defines (i) a first passage disposed upstream from the spool and configured to fluidly couple the pressure compensator valve to the spool, and (ii) a second passage disposed downstream from the spool and configured to fluidly couple the spool to the actuator; and a counterbalance valve disposed in the second passage downstream from the spool, where the counterbalance valve is opened to permit flow therethrough from the actuator to the spool in response to a pilot pressure derived from the first passage when the spool is shifted from a neutral position.

5. 发明授权

US10024445B2 Reverse flow check valve in hydraulic valve with series circuit 有权
公开(公告)号：US10024445B2
公开(公告)日：2018-07-17
申请号：US14750394
申请日：2015-06-25
申请人： Parker-Hannifin Corporation
发明人： Dennis Reynolds , Brian Slattery , Rolf Anderson
IPC分类号： F15B13/04 , F16K15/18 , F16K11/06 , F15B13/00 , F16K15/02 , F16K17/04
摘要： A valve assembly includes a valve body having at least a first bore and a second bore, a flow passage connecting the first bore to the second bore, a plurality of ports opening to each bore respectively, the first bore being upstream of the second bore. First and second spools are disposed in the first and second bores, respectively, for controlling the flow of fluid to and from the respective ports. A check valve is disposed in the flow passage and configured to prevent fluid flow from the second spool towards the first spool through the flow passage while allowing fluid flow from one of the ports in the first bore towards the second spool through the flow passage.

6. 发明授权

US10024443B2 Hydraulic circuitry for skid steer loader valve 有权
公开(公告)号：US10024443B2
公开(公告)日：2018-07-17
申请号：US15176796
申请日：2016-06-08
申请人： Parker-Hannifin Corporation
发明人： Chuck Sensabaugh , Dennis Reynolds , Brian Slattery
IPC分类号： F16K11/07 , E02F3/34 , E02F9/22
摘要： Arrangements of a flow path to achieve a series circuit, a regeneration circuit and a float/passive regeneration circuit. For example, a valve body having a spool bore, a valve inlet, a plurality of cavities opening into the spool bore and a spool disposed in the spool bore. A first cavity fluidly connected to a tank passage, a second cavity fluidly connected to a first work port, a third cavity fluidly connected to an inlet of another valve, a fourth cavity fluidly connected to a second work port, a fifth cavity fluidly connected to the valve inlet, a sixth cavity fluidly connected to the first work port, a seventh cavity, an eighth cavity fluidly connected to the valve inlet, a ninth cavity fluidly connected to the inlet of the other valve and a tenth cavity fluidly connected to the valve inlet.

7. 发明申请

US20170198727A1 OIL EXCHANGE IN HYDRAULICALLY OPERATED AND ELECTRO-HYDRAULICALLY OPERATED HYDRAULIC VALVES 审中-公开
公开(公告)号：US20170198727A1
公开(公告)日：2017-07-13
申请号：US15320536
申请日：2015-06-23
申请人： Parker-Hannifin Corporation
发明人： Dennis L. Reynolds , Brian Slattery
IPC分类号： F15B13/04 , F15B13/043
CPC分类号： F15B13/0402 , F15B13/042 , F15B13/043 , F15B21/042 , F15B21/045 , F16K11/07 , Y10T137/86582 , Y10T137/8671
摘要： A hydraulic valve includes a valve body having first and second ends, a bore extending therebetween, and first and second drain passages opening to the bore; a spool disposed in the bore and biased in a neutral position, the spool having first and second ends and first and second annuli axially spaced from the first and second ends respectively, whereby when the spool is in the neutral position, the first and second drain passages are connected to first and second bores respectively via the respective annulus, and wherein the spool is axially movable relative to the body by fluid acting on one of the ends to block fluid flow from the first and second bores to the first and second drain passages.

8. 发明授权

US09482365B2 Rotary valve 有权
标题翻译：旋转阀
公开(公告)号：US09482365B2
公开(公告)日：2016-11-01
申请号：US14378001
申请日：2013-02-11
申请人： Parker-Hannifin Corporation
发明人： John Allen Miller, III , Dennis L. Reynolds , Brian Slattery
IPC分类号： F16K11/074 , F16K39/04 , F16K39/06 , F16K3/26 , F16K5/04 , F16K11/085 , F16K31/00
CPC分类号： F16K39/06 , F16K3/262 , F16K5/0407 , F16K5/0464 , F16K5/162 , F16K11/0853 , F16K31/003 , F16K39/045 , Y10T137/86936
摘要： A rotary valve capable of high flow rates, minimal pressure drop, and rapid actuation is presented. According to one aspect, the rotary valve is characterized by a unique pressure balancing system operating on the rotary spool of the valve to reduce side force caused by pressure at the flow ports. According to another aspect, the rotary valve (700) is characterized by a internal shiftable blocking spool (790) in response to a failure condition or a modulating signal. According to another aspect, an interface is provided for sealing a port of a rotary valve to an outer surface of a rotary spool. According to another aspect, the rotary valve is characterized by an interface provided for sealing a port to an outer surface of the rotary spool. According to another aspect, a rotary valve is characterized by a three-way three-or-more-position configuration. According to another aspect, a rotary valve is characterized by a four-port three-position configuration.
摘要翻译：提出了一种能够实现高流量，最小压降和快速致动的旋转阀。根据一个方面，旋转阀的特征在于在阀的旋转阀芯上操作的独特的压力平衡系统，以减少由流动端口处的压力引起的侧向力。根据另一方面，旋转阀（700）的特征在于响应于故障状态或调制信号的内部可移动阻塞阀芯（790）。根据另一方面，提供一种用于将旋转阀的端口密封到旋转阀芯的外表面的界面。根据另一方面，旋转阀的特征在于用于将端口密封到旋转阀芯的外表面的接口。根据另一方面，旋转阀的特征在于三通三位或三位以上构型。根据另一方面，旋转阀的特征在于四端口三位置配置。

9. 发明授权

US11448241B2 Hydraulic control valve with duplicate workports and integrated actuator oscillation control features 有权
公开(公告)号：US11448241B2
公开(公告)日：2022-09-20
申请号：US17290812
申请日：2019-12-26
申请人： Parker-Hannifin Corporation
发明人： Brian Slattery
IPC分类号： F15B13/08 , F15B13/04
摘要： An example valve assembly includes a first workport fluidly coupled to a first actuator; a second workport fluidly coupled to the first actuator; a third workport fluidly coupled to a second actuator, wherein the third workport is fluidly coupled to the first workport via a first fluid passage; a fourth workport fluidly coupled to the second actuator, wherein the fourth workport is fluidly coupled to the second workport via a second fluid passage; and a spool axially movable in a bore within the valve assembly, wherein when the spool is shifted axially in a first axial direction, pressurized fluid is provided to the first workport and to the third workport via the first fluid passage, and when the spool is shifted axially in a second axial direction opposite the first axial direction, pressurized fluid is provided to the second workport and to the fourth workport via the second fluid passage.

10. 发明申请

US20210372440A1 Hydraulic Control Valve with Duplicate Workports and Integrated Actuator Oscillation Control Features 有权
公开(公告)号：US20210372440A1
公开(公告)日：2021-12-02
申请号：US17290812
申请日：2019-12-26
申请人： Parker-Hannifin Corporation
发明人： Brian Slattery
IPC分类号： F15B13/08 , F15B13/04
摘要： An example valve assembly includes a first workport fluidly coupled to a first actuator; a second workport fluidly coupled to the first actuator; a third workport fluidly coupled to a second actuator, wherein the third workport is fluidly coupled to the first workport via a first fluid passage; a fourth workport fluidly coupled to the second actuator, wherein the fourth workport is fluidly coupled to the second workport via a second fluid passage; and a spool axially movable in a bore within the valve assembly, wherein when the spool is shifted axially in a first axial direction, pressurized fluid is provided to the first workport and to the third workport via the first fluid passage, and when the spool is shifted axially in a second axial direction opposite the first axial direction, pressurized fluid is provided to the second workport and to the fourth workport via the second fluid passage.

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