Raymond E Collett

US Patent:

20080113838, May 15, 2008

Filed:

Jun 11, 2007

Appl. No.:

11/761041

Inventors:

Joseph A. Kovach - Aurora OH, US
Lisa K. Furches - Charlotte NC, US
Richard D. Kimpel - Middelburg Heights OH, US
Hao Zhang - Solon OH, US
Raymond E. Collett - Put-In-Bay OH, US
Lori A. Martinelli - Lordstown OH, US

International Classification:

B62D 11/06
B60K 7/00

US Classification:

475 24, 180165

Abstract:

A hydraulic drive comprising multiple gear motors each having a gear motor output shaft, and a common gear engaged by the output shafts of the multiple gear motors. Each hydraulic motor has a characteristic sinusoidal torque ripple out of phase with the characteristic sinusoidal torque ripple of at least one other hydraulic motor for cancelling torque ripple and thereby reducing the torque ripple at the common gear.

US Patent:

20210309287, Oct 7, 2021

Filed:

Apr 19, 2021

Appl. No.:

17/234120

Inventors:

- Cleveland OH, US
Raymond Collett - Put-in-Bay OH, US
Rajneesh Kumar - Mayfield Heights OH, US
Qiang Wang - Shanghai, CN
Miao Zhang - Shanghai, CN
James Howland - Marysville OH, US

International Classification:

B62D 5/07
F15B 11/16
E02F 9/22
E02F 9/08
B62D 5/10
B62D 12/00
F15B 13/02
F15B 13/044

Abstract:

A hydraulic system () for a work machine comprising a priority circuit () including at least a first priority actuator () and a priority control valve () for controlling the supply of hydraulic fluid to the first priority actuator () and for providing a load sense signal indicative of the load acting on the first priority actuator (); an auxiliary circuit () including at least a first auxiliary actuator () and at least a first auxiliary control valve () for controlling the supply of hydraulic fluid to the first auxiliary actuator (); at least a first pump () for producing a flow of hydraulic fluid; and a priority valve () for distributing the flow from the pump () to the priority circuit () and auxiliary circuit () for operating the respective actuators thereof, with priority being given to the priority circuit () as a function of the load sense signal.

US Patent:

20180209449, Jul 26, 2018

Filed:

Mar 20, 2018

Appl. No.:

15/925821

Inventors:

- Cleveland OH, US
Hao Zhang - Twinsburg OH, US
Richard D. Kimpel - Middleburg Hts. OH, US
Zhesheng Jiang - Solon OH, US
Raymond Collett - Put-In-Bay OH, US
Bogdan Kozul - Hinckley OH, US

International Classification:

F15B 1/02
F15B 7/00
E02F 9/12
E02F 9/22
E02F 9/20

Abstract:

A swing drive system for an excavator is provided which utilizes a prime mover mechanically connected to a first hydraulic pump/motor and a second hydraulic pump/motor mechanically connected to a swing mechanism. The system includes a hydraulic circuit connecting a hydraulic fluid reservoir, a hydraulic accumulator, the first hydraulic pump/motor, and the second hydraulic pump/motor. The system is operable in one mode where the second hydraulic pump/motor acts as a pump to retard movement of the swing mechanism and pressurized hydraulic fluid from the second hydraulic pump/motor is pumped into the hydraulic accumulator. The system is operable in another mode where the pressurized fluid from the hydraulic accumulator is used to assist the prime mover in driving hydraulic consumers, including the swing drive.

US Patent:

20170274930, Sep 28, 2017

Filed:

Nov 24, 2015

Appl. No.:

15/529336

Inventors:

- Cleveland OH, US
Raymond Collett - Put-in-Bay OH, US
Rajneesh Kumar - Mayfield Heights OH, US
Qiang Wang - Shanghai, CN
Miao Zhang - Shanghai, CN
James Howland - Marysville OH, US

Assignee:

Parker-Hannifin Corporation - Cleveland OH

International Classification:

B62D 5/07
E02F 9/22
F15B 13/02
F15B 13/044
B62D 5/10
B62D 12/00

Abstract:

A hydraulic system () for a work machine comprising a priority circuit () including at least a first priority actuator () and a priority control valve () for controlling the supply of hydraulic fluid to the first priority actuator () and for providing a load sense signal indicative of the load acting on the first priority actuator (); an auxiliary circuit () including at least a first auxiliary actuator () and at least a first auxiliary control valve () for controlling the supply of hydraulic fluid to the first auxiliary actuator (); at least a first pump () for producing a flow of hydraulic fluid; and a priority valve () for distributing the flow from the pump () to the priority circuit () and auxiliary circuit () for operating the respective actuators thereof, with priority being given to the priority circuit () as a function of the load sense signal.

US Patent:

20170129473, May 11, 2017

Filed:

Jun 18, 2015

Appl. No.:

15/319959

Inventors:

- Cleveland OH, US
Raymond Collett - Put-in-Bay OH, US
Zhesheng JIANG - Solon OH, US
Blake CARL - University Heights OH, US

International Classification:

B60W 20/11

Abstract:

A control system for a working machine that includes a power consumer () includes a prime mover (), an energy storage unit () for storing energy, an auxiliary power unit () for generating power or consuming power, the auxiliary power unit () having a first connection () coupled to the prime mover () and a second connection couplable to the energy storage unit (). A controller () operatively coupled to the prime mover () and operatively couplable to the power consumer () is configured to estimate a required power of the power consumer (), and to command the prime mover () to operate at an optimal operating point that produces the estimated required power. Based on a relationship between power output capability of the prime mover and power consumption of the power consumer, the controller () is configured to at least one of command that excess power capacity from the prime mover be provided to the auxiliary power unit for storage in the energy storage unit, or command that energy stored in the energy storage unit be provided to the auxiliary power unit to drive the power consumer.

US Patent:

20160114668, Apr 28, 2016

Filed:

Dec 28, 2015

Appl. No.:

14/980771

Inventors:

- Cleveland OH, US
Raymond COLLETT - Put in Bay OH, US
Rajneesh KUMAR - Mayfield Heights OH, US

International Classification:

B60K 6/12
F16H 61/44
F16H 47/04

Abstract:

Provided is a hydrostatic system including a first hydraulic unit, second and third hydraulic units fluidly connected to the first hydraulic unit, and a hydraulic accumulator fluidly connected to the first hydraulic unit and the third hydraulic unit, where the hydrostatic system is selectively coupleable to a prime mover and/or one or more wheels. The hydrostatic system may be operated in a hydrostatic driving mode where the hydraulic accumulator is isolated from the system and the first hydraulic unit drives the second and third hydraulic units, and in a hybrid driving mode where the hydraulic accumulator supplies fluid to the third hydraulic unit and the first hydraulic unit supplies or does not supply fluid to the second hydraulic unit. By selectively coupling the hydrostatic system to the prime mover, the hydrostatic system and the prime mover may be operated independent of one another. By selectively coupling the hydrostatic system to the wheels, the hydrostatic system and the wheels may be operated independent of one another.

US Patent:

20160010663, Jan 14, 2016

Filed:

Jan 30, 2014

Appl. No.:

14/764794

Inventors:

- Cleveland OH, US
Jeff Cullman - Wadsworth OH, US
Raymond Collett - Put in Bay OH, US
James Howland - Mayfield Heights OH, US
Nick White - Shaker Heights OH, US
Patrick Stegemann - Arlington Heights IL, US

International Classification:

F15B 11/08
F15B 1/02

Abstract:

A hybrid swing drive system () of a hydraulic construction machine includes a variable displacement hydraulic swing pump () operable by a prime mover (); a hydraulic swing motor () for performing a swing function of the machine; an accumulator (); a controller (); a swing control valve assembly () disposed in a first hydraulic path extending from the swing pump to the swing motor, the swing control valve assembly having a first position fluidly connecting the swing pump to a first side of the swing motor and a second position fluidly connecting the swing pump to a second side of the swing motor; and an accumulator control valve () having an open position fluidly connecting the accumulator to the first hydraulic path at an accumulator control valve connection point and a closed position fluidly isolating the accumulator from the first hydraulic path.

US Patent:

20160003336, Jan 7, 2016

Filed:

Feb 14, 2014

Appl. No.:

14/765686

Inventors:

- Cleveland OH, US
Matthew Herman Simon - Paw Paw MI, US
David Mark Heathcoat - Greeneville SC, US
Jason Scot Richardson - Chuckey TN, US
John Matthew Rector - Jonesboro TN, US
Raymond E. Collett - Put-in-Bay OH, US
Somer Renee Malone - Chuckey TN, US

International Classification:

F16H 47/04
F16H 39/12
F15B 11/028

Abstract:

A center section/motor sub-assembly for use in a hydrostatic transmission includes a center section having a pump running face for interfacing with a pump, and a motor running face for interfacing with a motor. The center section and the motor are configured for the hydraulic separating forces of the motor to be reacted only into the center section. The center section has two internal passages between pump kidney ports and motor kidney port, and the motor kidney ports are raised in elevation relative to the pump kidney ports. The internal passages run parallel to each other as they rise in elevation. A hydrostatic transmission includes the sub-assembly enclosed by a housing, in combination with a pump and output shaft assembly. For installation, the output shaft assembly is configured as a separate component from the sub-assembly of the center section and the motor.