ENERGY RECOVERY SYSTEM FOR MACHINE WITH CYLINDER ACTIVATION AND DEACTIVATION SYSTEM
An energy recovery system for a machine with a cylinder activation and deactivation system is disclosed. The energy recovery system can include a first cylinder group circuit including a first pump, a first condenser, a first turbine, and a first flow path. The first flow path can be connected in fluid communication with the first pump, the first condenser, and the first turbine. The energy recovery system can additionally include a second cylinder group circuit including a second pump, a second condenser, a second turbine, and a second flow path. The second flow path can be connected in fluid communication with the second pump, the second condenser, and the second turbine. The first flow path can be in thermal communication with a first group of cylinders of the machine, and the second flow path can be in thermal communication with a second group of cylinders of the machine. The machine can include a cylinder activation and deactivation system configured to deactivate at least one of the first group of cylinders and the second group of cylinders.
The present disclosure is directed to an energy recovery system, and more particularly, to an energy recovery system for a machine having a cylinder activation and deactivation system.
BACKGROUNDA wide variety of machines may include and utilize an internal combustion engine as a source of energy. Some of such machines, and the engines thereof, may include a system which may be configured to deactivate some of the cylinders within the engine while maintaining others as active in order to reduce the amount of fuel consumed by the engine. Although such a system may be effective in improving fuel economy and reducing the consumption of fuel to a degree, such a system may nonetheless be characterized by energy losses and/or may be incapable of providing the power required for some applications while achieving a desired fuel efficiency.
U.S. Pat. No. 4,235,077 (the '077 patent) to Bryant, discloses a combination engine with an internal combustion engine section and a vapor engine section. The heat generated by the internal combustion section is transferred to a coolant (which is also a working fluid), such as water or an organic fluid, circulating around the engine block of the internal combustion section. This working fluid is converted to vapor and transported to a boiler through which exhaust gases pass. The exhaust gases superheat the vapor which is used to run the Rankine cycle of the combination engine. In order to increase fuel economy, the engine may have a solenoid or manually actuated device to shut down one or more of the internal combustions cylinders in order to maintain an optimum temperature for Rankine cycle operation. While this can be accomplished by manual controls, it is preferable to do this automatically. In the preferred automatic mechanism, an electronic control module will monitor engine temperatures and shut down part or all of the internal combustion cylinders when the engine temperature is at the maximum desired.
The present disclosure is directed to mitigating or eliminating one or more of the drawbacks discussed above.
SUMMARYOne aspect of the present disclosure is directed to an energy recovery system for a machine. The energy recovery system can include a first cylinder group circuit including a first pump, a first condenser, a first turbine, and a first flow path. The first flow path can be connected in fluid communication with the first pump, the first condenser, and the first turbine. The energy recovery system can additionally include a second cylinder group circuit including a second pump, a second condenser, a second turbine, and a second flow path. The second flow path can be connected in fluid communication with the second pump, the second condenser, and the second turbine. The first flow path can be in thermal communication with a first group of cylinders of the machine, and the second flow path can be in thermal communication with a second group of cylinders of the machine. The machine can include a cylinder activation and deactivation system configured to deactivate at least one of the first group of cylinders and the second group of cylinders.
Another aspect of the present disclosure is directed to an energy recovery system for a machine. The energy recovery system can include a first cylinder group circuit configured to direct a first working fluid along a first flow path in fluid communication with a first pump, a first condenser and a first turbine. The first cylinder group circuit can additionally be configured to direct the first working fluid along the first flow path in thermal communication with a first group of cylinders of the machine downstream of the first pump and upstream of the first turbine. The energy recovery system can also include a second cylinder group circuit configured to direct a second working fluid along a second flow path in fluid communication with a second pump, a second condenser and a second turbine. The second cylinder group circuit can additionally be configured to direct the second working fluid along the second flow path in thermal communication with a second group of cylinders of the machine downstream of the second pump and upstream of the second turbine. The machine can include a cylinder activation and deactivation system configured to activate and deactivate at least one of the first group of cylinders and the second group of cylinders.
Yet another aspect of the present disclosure is directed to a method of generating energy from a machine. The method can include the step of directing a first working fluid in thermal communication with a first group of cylinders of the machine via a first pump along a first flow path in response to the activation of the first group of cylinders. The method can also include the steps of employing the first working fluid to power a first turbine operably connected with the first working fluid downstream of the first group of cylinders and condensing the first working fluid along the first flow path for reuse. The method can additionally include the step of directing a second working fluid in thermal communication with a second group of cylinders of the machine via a second pump along a second flow path in response to the activation of the first group of cylinders. The method can further include the steps of employing the second working fluid to power a second turbine operably connected with the second working fluid downstream of the second group of cylinders and condensing the second working fluid along the second flow path for reuse.
The present disclosure is directed to an energy recovery system 10 which can be implemented and utilized with any of a variety of machines which may utilize a cylinder activation and deactivation system. Reference will now be made in detail to specific embodiments or features, examples of which are illustrated in the accompanying drawings. Generally, corresponding or similar reference numbers will be used, when possible, throughout the drawings to refer to the same or corresponding parts. Elements in schematics, included in the drawings, and described herein, may not be drawn with dimensions or to any realistic scale, but may rather be drawn to illustrate different aspects of the disclosure.
As provided above, each exemplary machine 12 schematically illustrated in
Each exemplary machine 12 schematically illustrated in
Each exemplary machine 12 schematically illustrated in
Referring specifically to the schematic illustration of the exemplary machine 12′ shown in
As further illustrated by the exemplary embodiment shown in
The master controller 26′ can also be connected in electronic and controllable communication with, or alternatively, can include, the cylinder activation and deactivation controller 24′, wherein in response to one or more and/or a combination of sensed or monitored machine 12′ signals from the engine 31, as well as the first and second group of cylinders 20′, 22′ thereof, the transmission 34, drive shaft 44′, differential 38′ and/or axles 42′, and in one embodiment, from each of the sensors 46′ operatively associated therewith, as well as one or more and/or a plurality of operator control signals from one or more of the operator controls 48′ as provided above, the master controller 26′ can send one or more activation and/or deactivation command signals to the cylinder activation and deactivation controller 24′ to generate one or more activation or deactivation signals to selectively activate and/or deactivate one or more of the two or more groups of cylinders 16 in response thereto as provided herein. Additionally, as provided above and as further provided herein, the master controller 26 can also be connected in electronic and controllable communication with the energy recovery system controller 28. In particular, and as provided above and further discussed below, the energy recovery system controller 28 can be connected in electronic communication to monitor and/or receive signals from the master controller 26, illustrated in
Referring to the embodiment of the exemplary machine 12″ schematically illustrated in
In a manner substantially consistent with
In a manner substantially consistent with the foregoing discussion of
The master controller 26″ can also be connected in electronic and controllable communication with, or alternatively, can include, the cylinder activation and deactivation controller 24″, wherein in response to one or more and/or a combination of sensed or monitored machine 12″ signals from the first engine 56 and the second engine 60, the first and second generators 64, 68, the first and second output shafts 66, 70, the first and second power electronics 74, 76, the one or more energy storage devices 78, the electric motor 72, the differential 38″, axles 42″ and/or drive shafts 44″, and in one embodiment, from each of the sensors 46′ operatively associated therewith, as well as one or more and/or a plurality of operator control signals from one or more of the operator controls 48″ as provided above, the master controller 26″ can send one or more activation and/or deactivation command signals to the cylinder activation and deactivation controller 24″ to generate one or more activation or deactivation signals to selectively activate and/or deactivate one or more of the two or more groups of cylinders 16 in response thereto as provided herein. Additionally, as provided above and as further provided herein, the energy recovery system controller 28 can be connected in electronic communication to monitor and/or receive signals from the master controller 26, illustrated in
As provided above and further provided herein, each cylinder 133 of the first row of cylinders 135 and the second row of cylinders 137 can be operatively included in one of the group of individual cylinders included in the first group of cylinders 120′ and the group of individual cylinders included in the second group of cylinders 122′, wherein the cylinder activation and deactivation system 18 can be configured to selectively activate and/or deactivate, and in one embodiment, can be configured to selectively connect and/or disconnect the group of individual cylinders included in the first group of cylinders 120′ as well as the group of individual cylinders included in the second group of cylinders 122′, as provided herein, which can be via the cylinder activation and deactivation controller 24, such as the cylinder activation and deactivation controller 24′. In particular, each of the first group of cylinders 120′ and the second group of cylinders 122′ can include a balanced, symmetrical, alternating and/or offset array of one or more cylinders 133 of the first row of cylinders 135 and one or more cylinders 133 of second row of cylinders 137 such that the dynamic forces within the engine 131 and the engine block 132 thereof can be equally and/or symmetrically balanced and distributed between the active or activated one (or both) of the first group of cylinders 120′ and the second group of cylinders 122′ and the inactive or deactivated one of the first group of cylinders 120′ and the second group of cylinders 122′ within the engine block 132 of the engine 131. In one embodiment, each of the first group of cylinders 120′ and the second group of cylinders 122′ can include one, or more than one cylinders 133 from the first row of cylinders 135 and one, or more than one cylinders 133 from the second row of cylinders 137, wherein each of the cylinders 133 of the first group of cylinders 120′ can be directly adjacent and/or proximate to at least one parallel or linearly aligned cylinder 133 of the second group of cylinders 122′, and each of the cylinders 133 of the second group of cylinders 122′ can be directly adjacent and/or proximate to at least one parallel or linearly aligned cylinder 133 of the first group of cylinders 120′.
In one example, and as shown in the exemplary embodiment illustrated in
Additionally, and as provided above and further provided herein, the energy recovery system 10 can be operatively, fluidly and controllably connected and actuated to selectively exchange thermal energy with and generate energy from the first group of cylinders 20 and/or the second group of cylinders 22 along separate, independent flow paths which can conform to and/or align with the grouping and arrangement of and/or between the first group of cylinders 20 and the second group of cylinders 22. In particular, and as further shown in the exemplary embodiment of
The engine 231, and the engine block 232 as well as the first group of cylinders 220′ and the second group of cylinders 222′ thereof shown in
Each of first working fluid 170 and second working fluid 182 can be any type of fluid suitable for powering a turbine, such as water/steam, air, or common fluids. Furthermore, the first turbine 172 included and fluidly integrated into the first cylinder group circuit 162 can be rotatably mounted to a first turbine output shaft 190, and the second turbine 184 included and fluidly integrated into the second cylinder group circuit 164 can be rotatably mounted to a second turbine output shaft 191. The first turbine 172 as well as the second turbine 184 can be any rotary mechanical device that can be configured to extract energy from the first and second working fluid 170, 182 within the first cylinder group circuit 162 and second cylinder group circuit 164, respectively. As shown in the exemplary embodiment illustrated in
The energy recovery system 10, and the first cylinder group circuit 162 thereof, can be configured, in part, to exchange thermal energy with and generate energy from each of the individual cylinders included in the first group of cylinders 20, such as first group of cylinders 20′, first group of cylinders 20″, first group of cylinders 120′, and first group of cylinders 220′ according to any embodiment as disclosed herein. In particular, the first conduit 166 of the first cylinder group circuit 162 can be configured to fluidly direct the first working fluid 170 along and throughout the first cylinder group flow path 168 and can be connected in fluid communication to direct the first working fluid 170 sequentially and successively through the first turbine 172, the first condenser 174, the first pump 176, and additionally can be operably positioned and/or connected in thermal communication and/or proximity adjacent to, along and/or through or otherwise in thermal proximity with each of the individual cylinders included in the first group of cylinders 20 as well as the exhaust manifold 19, according to any embodiment as disclosed herein, as provided above. The first turbine 172 can be connected in fluid communication with the first group of cylinders 20, the exhaust manifold 19, the first condenser 174, and the first pump 176 via the first conduit 166 and can be fluidly and operably integrated into the first cylinder group flow path 168 and positioned therein in fluid communication with the first working fluid 170 downstream of the first group of cylinders 20 and exhaust manifold 19. The first condenser 174 can be connected in fluid communication with the first conduit 166 and fluidly and operably integrated into the first cylinder group flow path 168 and positioned downstream of the first turbine 172 and upstream of the first pump 176. The first pump 176, which can be connected in fluid communication with the first conduit 166 and fluidly and operably integrated and positioned downstream of the first condenser 174 and upstream of the first group of cylinders 20 and exhaust manifold 19 and can be operable to pressurize and propel the first working fluid 170 through the first conduit 166 and first cylinder group flow path 168 of the first cylinder group circuit 162.
As provided above, the first conduit 166 can also be fluidly connected and/or positioned to direct the first working fluid 170 fluidly directed along the first cylinder group flow path 168 from the first pump 176 adjacent to, along and/or through or otherwise in thermal proximity with each of the individual cylinders included in the first group of cylinders 20, such as 20′, 20″, 120′, 220′, which can be via the associated heat exchangers 30a, such as heat exchanger(s) 30′, 30a″, 130a′, 1130a′, 230a′, 2230a′, as well as the exhaust manifold 19, which can be via the associated heat exchangers 30c, such as 30c′, 30c″ according to any embodiment as disclosed herein, such that the first working fluid 170 gains thermal energy. Subsequently, the first conduit 166 and the first cylinder group flow path 168 can fluidly direct the first working fluid 170 from the first group of cylinders 20 and the exhaust manifold 19, and in one embodiment the associated heat exchangers 30 consistent with any one or more of the foregoing embodiments, into and through the first turbine 172.
The energy recovery system 10, and the second cylinder group circuit 164 thereof, can be configured, in part, to exchange thermal energy with and generate energy from each of the individual cylinders included in the second group of cylinders 22, such as second group of cylinders 22′, second group of cylinders 22″, second group of cylinders 122′, and second group of cylinders 222′ according to any embodiment as disclosed herein. In particular, the second conduit 178 of the second cylinder group circuit 164 can be connected in fluid communication and configured to fluidly direct the second working fluid 182 along and throughout the second cylinder group flow path 180 and can be fluidly connected to direct the second working fluid 182 sequentially and successively through the second turbine 184, the second condenser 186, the second pump 188, and additionally can be operably positioned and/or connected in thermal communication and/or proximity adjacent to, along and/or through or otherwise in thermal proximity with each of the individual cylinders included in the second group of cylinders 22 as well as the exhaust manifold 19, according to any embodiment as disclosed herein, as provided above. In particular, the second turbine 184 can be connected in fluid communication with the second group of cylinders 22, the exhaust manifold 19, the second condenser 186, and the second pump 188 via the second conduit 178 and can be fluidly and operably integrated into the second cylinder group flow path 180 and positioned therein in fluid communication with the second working fluid 182 downstream of the second group of cylinders 22 and exhaust manifold 19. The second condenser 186 can be connected in fluid communication with the second conduit 178 and fluidly and operably integrated into the second cylinder group flow path 180 and positioned downstream of the second turbine 184 and upstream of the second pump 188. The second pump 188, which can be connected in fluid communication with the second conduit 178 and fluidly and operably integrated and positioned downstream of the second condenser 186 and upstream of the second group of cylinders 22 and exhaust manifold 19 and can be operable to pressurize and propel the second working fluid 182 through the second conduit 178 and second cylinder group flow path 180 of the second cylinder group circuit 164.
As provided above, the second conduit 178 can also be fluidly connected and/or positioned to direct the second working fluid 182 fluidly directed along the second cylinder group flow path 180 from the second pump 188 adjacent to, along and/or through or otherwise in thermal proximity with each of the individual cylinders included in the second group of cylinders 22, such as 22′, 22″, 122′, 222′, which can be via the associated heat exchangers 30b, such as heat exchanger(s) 30b′, 30b″, 130b′, 1130b′, 230b′, 2230b′, as well as the exhaust manifold 19, which can be via the associated heat exchangers 30c, such as 30c′, 30c″ according to any embodiment as disclosed herein, such that the second working fluid 182 gains thermal energy. Subsequently, the second conduit 178 and the second cylinder group flow path 180 can fluidly direct the second working fluid 182 from the second group of cylinders 22 and the exhaust manifold 19, and in one embodiment the associated heat exchangers 30 consistent with any one or more of the foregoing embodiments, into and through the second turbine 184.
In one embodiment, the energy recovery system 10, and the first cylinder group circuit 162 and second cylinder group circuit 164 thereof, can be configured to direct the first working fluid 170 and the second working fluid 182, respectively, along and throughout separate flow paths to independently exchange thermal energy with and generate energy from the first group of cylinders 20 and the second group of cylinders 22, respectively, wherein the fluidly separate, independent flow paths, and in one embodiment, the fluidly separate, independent heat exchangers 30, can be configured to direct each fluidly separate first working fluid 170 and the second working fluid 182 along a separate flow path which can conform to and/or align with the cylinders of the first cylinder group 20 and the second cylinder group 22. Specifically, in one embodiment consistent with and as illustrated by the exemplary embodiment as shown in
In another embodiment, consistent with and as illustrated by the exemplary embodiment as shown in
In addition, the fluidly separate, closed loop first cylinder group circuit 162 as well as the fluidly separate, closed loop second cylinder group circuit 164 of the energy recovery system 10 can be selectively activated, which in one embodiment can be via the energy recovery system controller 28, to route and direct the first working fluid 170 and the second working fluid 182, respectively, to exchange thermal energy, extract heat, and generate mechanical energy from the first group of cylinders 20 and the second group of cylinders 22, respectively, according to any embodiment as disclosed herein. In particular, the energy recovery system controller 28 can be electronically connected to actuate, and/or control one or more or a plurality of the components, fluid connections and the flow and fluid communication of first working fluid 170 and second working fluid 182 through the first cylinder group circuit 162 and the second cylinder group circuit 164, respectively, and the exchange of thermal energy, extraction of heat, and generation of energy of, by and within each of the first and second cylinder group circuits 162, 164 of the energy recovery system 10, respectively, which can be in response to and/or consistent with the selective activation and/or deactivation of one or more of the two or more groups of cylinders 16 and additionally may be responsive to the operation modes, activation, and/or the control of the machine 12 as well as one or more, or a plurality of operating conditions and/or environments within which the machine 12 may be utilized. In particular, in one embodiment, the energy recovery system controller 28 can be electronically and controllably connected to each of the first pump 176 and the second pump 188, wherein the first pump 176 and the second pump 188 can each be an electronically controllable pump, and in one example, can additionally be an electronically controllable variable displacement pump. As such, each of the first pump 176 and the second pump 188 can be selectively actuated to activate and deactivate the flow and fluid communication of first working fluid 170 and second working fluid 182 through the first cylinder group circuit 162 and the second cylinder group circuit 164, respectively, in response to one or more signals from the energy recovery system controller 28. Additionally, in the alternative embodiment or variant of the energy recovery system 10 of
With this operable configuration, the energy recovery system controller 28 can be configured, in part, to selectively activate the first cylinder group circuit 162 as well as the fluidly separate, closed loop second cylinder group circuit 164 of the energy recovery system 10 as well as the flow and fluid communication of first working fluid 170 and second working fluid 182 therethrough, respectively, to selectively, controllably and responsively exchange thermal energy with and generate energy from the one or more or each of the active, activated and/or thermally active group of individual cylinders included in the first group of cylinders 20, and the group of individual cylinders included in the second group of cylinders 22, respectively. Additionally, the energy recovery system controller 28 can be configured, in part, to selectively, controllably and responsively deactivate the first cylinder group circuit 162 as well as the fluidly separate, closed loop second cylinder group circuit 164 of the energy recovery system 10 as well as the flow and fluid communication of first working fluid 170 and second working fluid 182 adjacent to, along and/or through or otherwise in thermal proximity with the inactive, de-activated and/or thermally inactive group of individual cylinders included in the first group of cylinders 20 and the group of individual cylinders included in the second group of cylinders 22, respectively.
INDUSTRIAL APPLICABILITYThe energy recovery system of the present disclosure may be implemented and utilized with any of a variety of powertrains or similar power systems of any of a variety of hybrid machines in which an energy recovery system consistent with any one or more of the embodiments disclosed herein can be employed. In addition to further advantages both as stated herein as well as those as understood by one of ordinary skill of the art upon being provided with the benefit of the teachings of the present disclosure, the presently disclosed energy recovery system may provide increased energy recovery, as well as increased fuel efficiency and lower fuel consumption for a machine having a cylinder activation and deactivation system. In addition, the energy recovery system of the present disclosure may provide a substantially net gain in energy recovery and fuel efficiency in addition to a reduction of fuel consumption which may be additive to and independent of other energy savings technologies and implementations without requiring significant energy demands or parasitic losses on a machine having a cylinder activation and deactivation system. Furthermore, the energy recovery system of the present disclosure may also provide more flexibility and responsiveness in generating and providing additional energy for a machine having a cylinder activation and deactivation system.
In particular, the master controller 26 may electronically monitor and/or receive one or more or a plurality of signals indicative of the operating conditions of the machine 12 which may be indicative of the power needs and/or capacity of the internal combustion energy system 14 in relation to the environment, operating conditions and/or forces experienced by the machine 12. For example, the master controller 26 may receive one or more or a plurality of signals from the sensors 46 which can be attached or otherwise positioned to sense and provide and/or transmit signals indicative of the speed, position, torque, load, acceleration, pressure, temperature and/or control of any one or more machine powertrain and/or drivetrain 36 components according to any one or more of the embodiments as provided herein. The master controller 26 may also receive one or more or a plurality of signals from the manual drive controls 48, drive mode controls 52, and/or component controls 54, as provided according to any one or more of the embodiments as disclosed herein. In response to any one or more or a plurality of the foregoing signals, the master controller 26 may activate and/or engage the operation of the machine 12 in any one of a plurality of operating modes, including but not limited to a low speed implement actuation drive mode, a low speed/high torque drive mode, a low speed/low torque mode, an engine idle/standby mode, a high speed drive mode, a high speed/high torque mode, a high speed/low torque mode, a high performance drive mode, a fuel economy or cruise drive mode, a retarding drive mode, and engine braking drive mode. The master controller 26 may additionally electronically transmit one or more activation and/or deactivation command signals to the cylinder activation and deactivation controller 24 to generate one or more activation or deactivation signals to selectively activate and/or deactivate one or more of the two or more groups of cylinders 16 in response thereto such that the internal combustion energy system 14 consumes an amount of combustible medium in the form of fuel necessary to produce the power and mechanical energy demanded by the machine 12 and consistent with and/or established by any one of the one or more operating modes implemented by the master controller 26.
In one example, the master controller 26 may engage the machine 12 to operate in a low speed/high torque drive mode, a high speed drive mode, a high speed/high torque mode, or a high performance drive mode, and in response, may additionally electronically transmit one or more activation command signals to the cylinder activation and deactivation system 18 and the cylinder activation and deactivation controller 24 thereof. In response, the cylinder activation and deactivation controller 24 may generate and electronically transmit one or more activation signals to activate and/or engage one or more or each of the two or more groups of cylinders 16, and in one example, may activate any inactive or de-activated group of individual cylinders included in the first group of cylinders 20 and/or the group of individual cylinders included in the second group of cylinders 22. Additionally, the one or more activation command signals and/or activation signals may be electronically monitored, transmitted to, and/or received by the energy recovery system controller 28 from the master controller 26 and/or the cylinder activation and deactivation controller 24.
In response, the energy recovery system 10 may be actuated by the energy recovery system controller 28 which may electronically transmit one or more activation signals such that each cylinder group circuit, such as cylinder group circuit 162 and 164 is activated and the respective first and second working fluid 170, 182 is fluidly routed and directed to exchange thermal energy with and generate energy from the one or more or each of the active, activated and/or thermally active group of individual cylinders included in the first group of cylinders 20, and the group of individual cylinders included in the second group of cylinders 22, respectively. In particular, and in response to any one or more or a combination of the signals as discussed above, the energy recovery system controller 28 may transmit one or more electronic first cylinder group and/or second cylinder group activation signals to any inactive or de-activated one of the first pump 176 and/or the second pump 188, or both of the first pump 176 and/or the second pump 188 included in the first cylinder group circuit 162 and second cylinder group circuit 164, respectively, such that the first working fluid 170 and the second working fluid 182 is fluidly communicated through each fluidly separate, closed loop first cylinder group circuit 162 and second cylinder group circuit 164, respectively, to exchange thermal energy with and generate energy from the one or more or each of the active, activated and/or thermally active group of individual cylinders included in the first group of cylinders 20, and the group of individual cylinders included in the second group of cylinders 22, respectively. Additionally, in the exemplary embodiment as shown in
Alternatively, the master controller 26 may engage the machine 12 to operate in a low speed implement actuation drive mode, an engine idle/standby mode, a low speed/low torque mode, a high speed/low torque mode, a fuel economy or cruise drive mode, a retarding drive mode, or an engine braking drive mode, and in response, may additionally electronically transmit one or more deactivation command signals to the cylinder activation and deactivation system 18 and the cylinder activation and deactivation controller 24 thereof. In response, the cylinder activation and deactivation controller 24 may generate and electronically transmit one or more deactivation signals to deactivate and/or disengage one or more or each of the two or more groups of cylinders 16, and in one example, may deactivate any one of any active or activated group of individual cylinders included in the first group of cylinders 20 and/or the group of individual cylinders included in the second group of cylinders 22. Additionally, the one or more deactivation command signals and/or deactivation signals may be electronically monitored, transmitted to, and/or received by the energy recovery system controller 28 from the master controller 26 and/or the cylinder activation and deactivation controller 24.
In response, the energy recovery system 10 may be actuated by the energy recovery system controller 28 which may transmit one or more electronic first cylinder group and/or second cylinder group deactivation signals to the first pump 176 to deactivate the first cylinder group circuit 162 or the second pump 188 to deactivate the second cylinder group circuit 164 of the energy recovery system 10 as well as the flow and fluid communication of the respective first working fluid 170 or second working fluid 182 adjacent to, along and/or through or otherwise in thermal proximity with the inactive, de-activated and/or thermally inactive group of individual cylinders included in the first group of cylinders 20 or the group of individual cylinders included in the second group of cylinders 22, respectively. Additionally, in the exemplary embodiment as shown in
It will be apparent to those skilled in the art that various modifications and variations can be made to the system of the present disclosure without departing from the scope of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification and practice of the system disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims and their equivalent.
Claims
1. An energy recovery system for a machine, comprising:
- a first cylinder group circuit including a first pump, a first condenser, a first turbine, and a first flow path, the first flow path connected in fluid communication with the first pump, the first condenser, and the first turbine;
- a second cylinder group circuit including a second pump, a second condenser, a second turbine, and a second flow path, the second flow path connected in fluid communication with the second pump, the second condenser, and the second turbine;
- the first flow path in thermal communication with a first group of cylinders of the machine;
- the second flow path in thermal communication with a second group of cylinders of the machine; and
- wherein the machine includes a cylinder activation and deactivation system configured to deactivate at least one of the first group of cylinders and the second group of cylinders.
2. The energy recovery system of claim 1 wherein the first cylinder group circuit is a closed loop circuit and the second cylinder group circuit is a closed loop circuit, wherein the first cylinder group circuit is fluidly separate from the second cylinder group circuit.
3. The energy recovery system of claim 2 wherein the first turbine is fluidly integrated in the first flow path downstream of the first group of cylinders, the first condenser is fluidly integrated in the first flow path downstream of the first turbine, and the first pump is fluidly integrated in the first flow path downstream of the first condenser and upstream of the first group of cylinders.
4. The energy recovery system of claim 3 wherein the second turbine is fluidly integrated in the second flow path downstream of the second group of cylinders, the second condenser is fluidly integrated in the second flow path downstream of the second turbine, and the second pump is fluidly integrated in the second flow path downstream of the second condenser and upstream of the second group of cylinders.
5. The energy recovery system of claim 4 wherein the first cylinder group circuit is configured to be deactivated in response to the deactivation of the first group of cylinders.
6. The energy recovery system of claim 5 wherein the second cylinder group circuit is configured to be deactivated in response to the deactivation of the second group of cylinders.
7. The energy recovery system of claim 6 wherein the first turbine is connected to transmit mechanical energy to a first power component and the second turbine is connected to transmit mechanical energy to a second power component.
8. The energy recovery system of claim 6 wherein the first turbine and the second turbine are each selectively connected to transmit mechanical energy to a common power component.
9. The energy recovery system of claim 6 wherein the first group of cylinders and the second group of cylinders are included in an engine manifold of an engine of the machine.
10. The energy recovery system of claim 9 wherein the first flow path includes a first cylinder flow path portion, wherein the first cylinder flow path portion is aligned with an array of cylinders included in the first group of cylinders.
11. The energy recovery system of claim 10 wherein the second flow path includes a second cylinder flow path portion, wherein the second cylinder flow path portion is aligned with an array of cylinders included in the second group of cylinders.
12. The energy recovery system of claim 6 wherein the first group of cylinders is included in an engine block of a first engine of the machine and the second group of cylinders is included in an engine block of a second engine of the machine.
13. An energy recovery system for a machine, comprising:
- a first cylinder group circuit configured to direct a first working fluid along a first flow path in fluid communication with a first pump, a first condenser and a first turbine;
- the first cylinder group circuit configured to direct the first working fluid along the first flow path in thermal communication with a first group of cylinders of the machine downstream of the first pump and upstream of the first turbine;
- a second cylinder group circuit configured to direct a second working fluid along a second flow path in fluid communication with a second pump, a second condenser and a second turbine;
- the second cylinder group circuit configured to direct the second working fluid along the second flow path in thermal communication with a second group of cylinders of the machine downstream of the second pump and upstream of the second turbine; and
- the machine including a cylinder activation and deactivation system configured to activate and deactivate at least one of the first group of cylinders and the second group of cylinders.
14. The energy recovery system of claim 13 wherein the first cylinder group circuit is configured to be selectively activated and deactivated in response to the activation and deactivation of the first group of cylinders.
15. The energy recovery system of claim 14 wherein the first cylinder group circuit is configured to be selectively activated and deactivated in response to one or more operating modes of the machine.
16. The energy recovery system of claim 15 wherein the one or more modes of the machine include at least one of a low speed drive mode, a low speed implement actuation drive mode, a low speed/high torque drive mode, a low speed/low torque mode, an engine idle/standby mode, a high speed drive mode, a high speed/high torque mode, a high speed/low torque mode, a high performance drive mode, a fuel economy drive mode, a retarding drive mode, and an engine braking drive mode.
17. The energy recovery system of claim 13 wherein the second cylinder group circuit is configured to be selectively activated and deactivated in response to the activation and deactivation of the second group of cylinders.
18. The energy recovery system of claim 17 wherein the second cylinder group circuit is configured to be selectively activated and deactivated in response to one or more operating modes of the machine.
19. The energy recovery system of claim 18 wherein the one or more modes of the machine include at least one of a low speed drive mode, a low speed implement actuation drive mode, a low speed/high torque drive mode, a low speed/low torque mode, an engine idle/standby mode, a high speed drive mode, a high speed/high torque mode, a high speed/low torque mode, a high performance drive mode, a fuel economy drive mode, a retarding drive mode, and an engine braking drive mode.
20. A method of generating energy from a machine comprising the steps of:
- directing a first working fluid in thermal communication with a first group of cylinders of the machine via a first pump along a first flow path in response to the activation of the first group of cylinders;
- employing the first working fluid to power a first turbine operably connected with the first working fluid downstream of the first group of cylinders;
- condensing the first working fluid along the first flow path for reuse;
- directing a second working fluid in thermal communication with a second group of cylinders of the machine via a second pump along a second flow path in response to the activation of the first group of cylinders; and
- employing the second working fluid to power a second turbine operably connected with the second working fluid downstream of the second group of cylinders; and
- condensing the second working fluid along the second flow path for reuse.
Type: Application
Filed: Jun 21, 2013
Publication Date: Dec 25, 2014
Inventor: Jeffrey E. Jensen (Dunlap, IL)
Application Number: 13/923,971
International Classification: F01K 23/06 (20060101);