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1
EP3121394B1
Publication/Patent Number: EP3121394B1
Publication date: 2019-04-10
Application number: 16178685.0
Filing date: 2016-07-08
Abstract: A camshaft phaser (12, 212) includes a stator (18, 218); a rotor (20, 220) defining an advance chamber (42, 242) and a retard chamber (44, 244) with the stator (18, 218); a valve spool (28, 228) that is rotatable about an axis (16, 216) and defining a supply chamber (98, 298) and a vent chamber (100, 300) with the rotor (20, 220); an actuator (18, 118) which rotates the valve spool (28, 228) to change the position of the rotor (20, 220) relative to the stator (18, 218) by 1) supplying oil from the supply chamber (98, 298) to the advance chamber (42, 242) and venting oil from the retard chamber (44, 244) to the vent chamber (100, 300) and 2) supplying oil from the supply chamber (98, 298) to the retard chamber (44, 244) and venting oil from the advance chamber (42, 242) to the vent chamber (100, 300); and a check valve (78, 278) which is displaceable axially between an open position which allows oil to flow from the vent chamber (100, 300) to the supply chamber (98, 298) and a closed position which prevents oil from flowing from the supply chamber (98, 298) to the vent chamber (100, 300). A camshaft phaser (12, 212) includes a stator (18, 218); a rotor (20, 220) defining an advance chamber (42, 242) and a retard chamber (44, 244) with the stator (18, 218); a valve spool (28, 228) that is rotatable about an axis (16, 216) and defining a supply chamber (98, 298) ...more ...less
3
US9976450B2
Publication/Patent Number: US9976450B2
Publication date: 2018-05-22
Application number: 14/936,912
Filing date: 2015-11-10
Abstract: A camshaft phaser includes an input member and an output member defining an advance chamber and a retard chamber; a valve spool moveable along an axis between an advance position and a retard position and having a valve spool bore with a phasing volume and a venting volume defined therein such that the phasing volume is fluidly segregated from the venting volume, the valve spool having a first spool recirculation passage and a second spool recirculation passage which is diametrically opposed to the first spool recirculation passage. The first spool recirculation passage and the second spool recirculation passage provide paths for oil to flow from the advance chamber or the retard chamber to the phasing volume depending on the position of the valve spool. A camshaft phaser includes an input member and an output member defining an advance chamber and a retard chamber; a valve spool moveable along an axis between an advance position and a retard position and having a valve spool bore with a phasing volume and a venting volume ...more ...less
4
US10113403B2
Publication/Patent Number: US10113403B2
Publication date: 2018-10-30
Application number: 14/914,707
Filing date: 2013-08-29
Abstract: A plurality of heaters is provided where each of the plurality of heaters includes a fuel cell stack assembly having a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent. Each of the plurality of fuel cells also includes a conductor electrically connecting the fuel cell stack assembly to an electronic controller which monitors and controls electric current produced by the fuel cell stack assembly. The conductor of one of the plurality of heaters allows electric current produced by the fuel cell stack assembly of the one of the plurality of heaters to be monitored and controlled by the electronic controller independently of the fuel cell stack assembly of at least another one of the plurality of heaters. A plurality of heaters is provided where each of the plurality of heaters includes a fuel cell stack assembly having a plurality of fuel cells which convert chemical energy from a fuel into heat and electricity through a chemical reaction with an oxidizing agent. Each of the ...more ...less
5
US20180058272A1
Publication/Patent Number: US20180058272A1
Publication date: 2018-03-01
Application number: 15/251,743
Filing date: 2016-08-30
Abstract: A camshaft phaser includes an input member; an output member defining an advance chamber and a retard chamber with the input member; a camshaft phaser attachment bolt which clamps the camshaft phaser to a camshaft, the camshaft phaser attachment bolt having a bolt valve bore extending along an axis. A valve sleeve is located coaxially within the bolt valve bore such that an annular clearance is provided radially therebetween. A valve spool is located coaxially within the valve sleeve such that the valve spool is moved coaxially between an advance position and a retard position. A compliant sealing ring radially between the bolt valve bore and the valve sleeve prevents fluid communication through the annular clearance axially between opposing axial sides of the sealing ring and isolates the valve sleeve from radial expansion of the camshaft phaser attachment bolt. A camshaft phaser includes an input member; an output member defining an advance chamber and a retard chamber with the input member; a camshaft phaser attachment bolt which clamps the camshaft phaser to a camshaft, the camshaft phaser attachment bolt having a bolt valve bore ...more ...less
6
US2018058272A1
Publication/Patent Number: US2018058272A1
Publication date: 2018-03-01
Application number: 20/161,525
Filing date: 2016-08-30
Inventor: Haltiner, Jr Karl J  
Abstract: A camshaft phaser includes an input member; an output member defining an advance chamber and a retard chamber with the input member; a camshaft phaser attachment bolt which clamps the camshaft phaser to a camshaft, the camshaft phaser attachment bolt having a bolt valve bore extending along an axis. A valve sleeve is located coaxially within the bolt valve bore such that an annular clearance is provided radially therebetween. A valve spool is located coaxially within the valve sleeve such that the valve spool is moved coaxially between an advance position and a retard position. A compliant sealing ring radially between the bolt valve bore and the valve sleeve prevents fluid communication through the annular clearance axially between opposing axial sides of the sealing ring and isolates the valve sleeve from radial expansion of the camshaft phaser attachment bolt. A camshaft phaser includes an input member; an output member defining an advance chamber and a retard chamber with the input member; a camshaft phaser attachment bolt which clamps the camshaft phaser to a camshaft, the camshaft phaser attachment bolt having a bolt valve bore ...more ...less
7
US9957853B2
Publication/Patent Number: US9957853B2
Publication date: 2018-05-01
Application number: 15/251,743
Filing date: 2016-08-30
Abstract: A camshaft phaser includes an input member; an output member defining an advance chamber and a retard chamber with the input member; a camshaft phaser attachment bolt which clamps the camshaft phaser to a camshaft, the camshaft phaser attachment bolt having a bolt valve bore extending along an axis. A valve sleeve is located coaxially within the bolt valve bore such that an annular clearance is provided radially therebetween. A valve spool is located coaxially within the valve sleeve such that the valve spool is moved coaxially between an advance position and a retard position. A compliant sealing ring radially between the bolt valve bore and the valve sleeve prevents fluid communication through the annular clearance axially between opposing axial sides of the sealing ring and isolates the valve sleeve from radial expansion of the camshaft phaser attachment bolt. A camshaft phaser includes an input member; an output member defining an advance chamber and a retard chamber with the input member; a camshaft phaser attachment bolt which clamps the camshaft phaser to a camshaft, the camshaft phaser attachment bolt having a bolt valve bore ...more ...less
8
US20180016950A1
Publication/Patent Number: US20180016950A1
Publication date: 2018-01-18
Application number: 15/210,117
Filing date: 2016-07-14
Inventor: Haltiner, Jr Karl J  
Abstract: A camshaft phaser includes an input member and an output member defining an advance chamber and a retard chamber; a valve body having a valve bore which extends along an axis, an annular groove extending radially outward from the valve bore and having a first width in the direction of the axis, and a passage which opens into the annular groove and which extends from the valve bore through the valve body radially outward from the valve bore such that the passage has a second width in the direction of the axis that is greater than the first width of the annular groove. The camshaft phaser also includes a valve spool which moves along the axis within said valve bore, the valve spool having a land which varies a flow area between the valve bore and the annular groove and between the valve bore and the passage. A camshaft phaser includes an input member and an output member defining an advance chamber and a retard chamber; a valve body having a valve bore which extends along an axis, an annular groove extending radially outward from the valve bore and having a first width in the ...more ...less
9
US9982576B2
Publication/Patent Number: US9982576B2
Publication date: 2018-05-29
Application number: 15/210,117
Filing date: 2016-07-14
Abstract: A camshaft phaser includes an input member and an output member defining an advance chamber and a retard chamber; a valve body having a valve bore which extends along an axis, an annular groove extending radially outward from the valve bore and having a first width in the direction of the axis, and a passage which opens into the annular groove and which extends from the valve bore through the valve body radially outward from the valve bore such that the passage has a second width in the direction of the axis that is greater than the first width of the annular groove. The camshaft phaser also includes a valve spool which moves along the axis within said valve bore, the valve spool having a land which varies a flow area between the valve bore and the annular groove and between the valve bore and the passage. A camshaft phaser includes an input member and an output member defining an advance chamber and a retard chamber; a valve body having a valve bore which extends along an axis, an annular groove extending radially outward from the valve bore and having a first width in the ...more ...less
10
EP3026233B1
Publication/Patent Number: EP3026233B1
Publication date: 2018-01-10
Application number: 15193417.1
Filing date: 2015-11-06
Abstract: A camshaft phaser (12) includes an input member (18); an output member (20) defining an advance chamber (42) and a retard chamber (44) with the input member (18); a valve spool (28) coaxially disposed within the output member (20) such that the valve spool (28) is rotatable relative to the output member (20) and the input member (18), the valve spool (28) defining a supply chamber (96, 102) and a vent chamber (98, 106) with the output member (20); an actuator (130) which rotates the valve spool (28) in order to change the position of the output member (20) relative to the input member (18) by supplying pressurized oil from the supply chamber (96, 102) to one of the advance chamber (42) and the retard chamber (44) and venting oil to the vent chamber (98, 106) from the other of the supply chamber (96, 102) and the advance chamber (42); and a check valve (78) which allows oil to flow from the vent chamber (98, 106) to the supply chamber (96, 102) and prevents oil from flowing from the supply chamber (96, 102) to the vent chamber (98, 106). A camshaft phaser (12) includes an input member (18); an output member (20) defining an advance chamber (42) and a retard chamber (44) with the input member (18); a valve spool (28) coaxially disposed within the output member (20) such that the valve spool (28) is rotatable ...more ...less
11
US10082054B2
Publication/Patent Number: US10082054B2
Publication date: 2018-09-25
Application number: 14/936,888
Filing date: 2015-11-10
Abstract: A camshaft phaser includes an input member and an output member defining an advance chamber and a retard chamber; a valve spool moveable along an axis between an advance position and a retard position and having a valve spool bore with a phasing volume and a venting volume defined therein such that the phasing volume is fluidly segregated from the venting volume, the valve spool having a first spool supply passage and a second spool supply passage which is diametrically opposed to the first spool recirculation passage. The first spool supply passage and the second spool supply passage each provide a path for pressurized oil to be supplied to the phasing volume from an oil source. A camshaft phaser includes an input member and an output member defining an advance chamber and a retard chamber; a valve spool moveable along an axis between an advance position and a retard position and having a valve spool bore with a phasing volume and a venting volume ...more ...less
12
US9689286B2
Publication/Patent Number: US9689286B2
Publication date: 2017-06-27
Application number: 14/554,385
Filing date: 2014-11-26
Abstract: A camshaft phaser includes an input member connectable to the crankshaft of the internal combustion engine; an output member connectable to the camshaft of the internal combustion engine and defining an advance chamber and a retard chamber with the input member; a valve spool coaxially disposed within the output member such that the valve spool is rotatable relative to the output member and the input member, the valve spool defining a supply chamber and a vent chamber with the output member; and an actuator which rotates the valve spool in order to change the position of the output member relative to the input member by supplying pressurized oil from the supply chamber to one of the advance chamber and the retard chamber and venting oil to the vent chamber from the other of the supply chamber and the advance chamber. A camshaft phaser includes an input member connectable to the crankshaft of the internal combustion engine; an output member connectable to the camshaft of the internal combustion engine and defining an advance chamber and a retard chamber with the input member; a valve spool ...more ...less
13
US20170130618A1
Publication/Patent Number: US20170130618A1
Publication date: 2017-05-11
Application number: 14/936,912
Filing date: 2015-11-10
Abstract: A camshaft phaser includes an input member and an output member defining an advance chamber and a retard chamber; a valve spool moveable along an axis between an advance position and a retard position and having a valve spool bore with a phasing volume and a venting volume defined therein such that the phasing volume is fluidly segregated from the venting volume, the valve spool having a first spool recirculation passage and a second spool recirculation passage which is diametrically opposed to the first spool recirculation passage. The first spool recirculation passage and the second spool recirculation passage provide paths for oil to flow from the advance chamber or the retard chamber to the phasing volume depending on the position of the valve spool. A camshaft phaser includes an input member and an output member defining an advance chamber and a retard chamber; a valve spool moveable along an axis between an advance position and a retard position and having a valve spool bore with a phasing volume and a venting volume ...more ...less