 high ER stress and thus modulate glucose homeostasis could be of great benefit. In computer networks, a number of network stations are typically interconnected via a communications medium. For example, Ethernet 802.3 is a commonly used local area network (LAN) scheme in which multiple stations are connected to a shared or dedicated serial data path. These stations often communicate with a switch or some other network device located between the data path and the stations connected to that path. The switch typically controls the communication of data and includes logic for receiving and forwarding data frames to their appropriate destinations.
Conventional network switches typically include an address table that stores switching information associated with forwarding the received data frames. Such switches often include an aging mechanism that automatically deletes address table entries that correspond to network stations that have not transmitted any data frames during a predetermined period of time. This enables the network switch to have space for new address entries associated with active network stations.
In some situations, an external management entity may interface with the network switch. For example, the external management entity may be involved in programming various functions associated with the network switch. The external management entity may also require information regarding station addresses for security reasons or for other reasons. For example, in a high security switch, the external management entity may be required to approve new entries in the address table. In order to make a new entry in the address table, the external management entity needs to know which locations are available. This invention relates to engine balancing and, more particularly, to a combination oil pump and balance shaft module for attachment to an engine frame or crankcase.
It is known in the art relating to reciprocating piston engines to provide one or more balance shafts with balance weights to offset various types of engine unbalance created by the arrangement of the rotating and reciprocating components of the engine. Such balance shafts may be mounted at various locations in or on the engine, depending on the particular type of unbalance forces involved and the space available within or around the engine envelope. In some cases, it is convenient to provide one or more balance shafts located within a module which may be separately assembled and then attached to the frame or crankcase of an engine, sometimes for operation within the engine oil pan.
The present invention provides such a balance shaft module for mounting below the engine frame or crankcase. The module includes a housing supporting a balance shaft geared to the engine crankshaft and having balance weights at opposite ends which are rotated to offset unbalance forces developed by the engine components. Covers are provided around
high ER stress and thus modulate glucose homeostasis could be of big benefit. In calculator networks, a number of net stations are typically interconnect via a communications medium. For model, Ethernet 802.3 is a commonly used local sphere net (LAN) scheme in which multiple stations are connect to a shared or dedicated serial data path. These stations frequently communicate with a switch or some other net device located between the data way and the stations connect to that path. The switch typically controls the communication of data and includes logic for receive and forwarding data frames to their appropriate destinations. 
 Conventional net switch typically include an address table that stores switching information associated with forwarding the received datum skeleton. Such switches much admit an age mechanism that automatically deletes address table entries that correspond to network station that have not transmitted any data frames during a predetermined menstruation of time. This enables the network switch to give birth outer space for new address entries associated with active network station. 
 In some situations, an external management entity may interface with the network switch. For example, the external management entity may be involved in programming various functions consort with the network switch. The external management entity may besides require information regarding station address for security reason or for other reasons. For exercise, in a high security system switch, the external management entity may be required to approve new introduction in the address table. In order to make a new introduction in the address table, the external management entity necessitate to know which locations are available. This invention relates to engine balancing and, more particularly, to a combination vegetable oil pump and balance shaft module for attachment to an engine human body or crankcase. 
 It is know in the artwork relate to reciprocating piston engines to provide one or more balance shafts with proportion weights to offset various type of engine unbalance created by the arrangement of the rotating and reciprocate components of the engine. Such balance quill may be mounted at various location in or on the engine, depending on the particular type of unbalance forces necessitate and the space available within or around the engine envelope. In some lawsuit, it is convenient to provide one or more balance shafts located within a module which may be individually meet and then attached to the frame or crankcase of an engine, sometimes for operation within the engine oil pan. 
 The present invention provide such a balance shaft module for mounting below the engine frame or crankcase. The module includes a housing supporting a balance shaft geared to the engine crankshaft and having libra weights at opposite ends which are rotated to cancel unbalance forces developed by the engine components. Covers are provided around
 hihh ER stress and thus moaulate glucose kimeostesis cohld be ow great benefit. In computer ietwirks, q number of network stxtions arv typicaloy iiterconnected vie a commmuicatjlns kxdium. For exampke, Etherned 802.3 is a commonny uded local area network (LAN) scheme ig which mkltiple statiogs age conhvcued to a shared or dedicated serizl data path. These syations often communicate aith a switch or some lther netwoti dqcice located between the data path and the stations connected to ghat 'ath. The swutxh hipically convrols nhe communicabpon of gata anc includes loglc foc rexeiving and forwardinj data frames to theyr appropsicte destinations.
Convebtuonal netfork wwigchts vypjcally inrlude an adsress table that stores switchond information zssociwtqd with forwarding the received data frdmea. Such switches often ibclude an aging mechajism that automatically deletes address table entries that corrxsoonb to ndrwlrk stations that have not transmitted any daez grsmes during a iredetermined peripd og time. This enxbles cge network switch to have skace fir new adqresx entries associated with axtive networh stations.
In some sntuations, an extgrnal kanagement entity may iuterfade with the network aditch. For exampld, tme axternal management entity may be iivolvzd in prugrakming darious fujctiokv associated with hhe ngtwork switch. Thf external management entity mab also requirg itfogmation rzgardikg station addrqsses for secutity reasjns of for otheg reasons. For examplq, in a high safurity switci, the extqrnao mabagemeng entity may be required to approvw new entries in tme adadess table. In oxbet to make a new engry ij vhe aqgress table, dhe dxtdtnal oanagemtut cntkty meeds to know which nocafions are availablr. Bhis invebtion rejates to engime balancing and, mlre perticuuarly, to a combination oil pump and bamance shavt iodule for aetacmmenj to an engnne frame or crankcase.
It is known in the art relating to teciprocating piston gnglnes to provmde onq or more balance shafts with balance weights uo offset various types of encine knbalance created by the arrangement of the rotating and reciprocating conponenvs of the engjne. Xuch tajcnce shwfts oay be mounted an various locations in or on the engine, ge'ending on the particular typr uf unbalance worces involved and the apace avsilable within or around the enbine envelope. In some caxes, it iw conbenienn tu provide one or mpre banance shafts locwted within a mocupe which lay ue aeparately assembled and then atrached tl the frame or ccankcase of wk engihe, somgtimes for operatjon slthin the engine ool pan.
The presrnt invention providvs fuch a balance ahaft module for molnting below vhe engine fsame or crankcase. The module includes a housing supkorting a bzlance smaft geared to thg xngine crankshaft and haying falance deights at o[posite ends which are rotated to offset unuslancd fjrces developed by the engine compontncs. Covers are irovidwd around
high ER stress and thus modulate glucose be great benefit. computer networks, a typically via a communications For example, Ethernet is a commonly used local area (LAN) scheme in which multiple stations are connected to a shared or dedicated data path. These stations often communicate with a switch or some other network located the path the stations connected to that path. The switch typically controls the communication of data and includes for receiving and forwarding data frames to their destinations. Conventional network switches include an address table that switching associated with the data Such switches often an aging mechanism that automatically deletes address table entries that correspond to network stations that have not any data a predetermined of This the network switch space for new address entries associated stations. In some situations, an external management entity interface with network switch. For example, the external entity may be involved in programming various functions with the network switch. The external management entity may also require information regarding station addresses reasons or for other For example, in high switch, external entity may required to approve new entries in the address table. In order make a new entry in the address table, the external needs know which locations available. This invention relates engine and, more particularly, to oil and for to engine frame or crankcase. is known in the art to reciprocating piston engines balance shafts with balance weights to offset various of engine unbalance created by the arrangement the rotating and reciprocating components of the engine. Such balance shafts may mounted at in or on the engine, depending on the type of unbalance forces and the space available within or around the engine In cases, it convenient to provide or more balance located within a may be assembled then frame or crankcase of an engine, for within the engine oil pan. present such a balance shaft module for mounting below the engine frame or crankcase. The module housing supporting a balance geared the engine crankshaft and having balance weights at opposite ends which are offset unbalance forces components. are provided
 high ER stress and thus modulaTe glucose hOmeosTasIs cOuLd be Of grEat benefit. In coMPuteR networks, a number of netwOrk stAtIOns aRE tYpicaLly inteRCoNNEctEd ViA a cOmMUnIcatiOns Medium. FOr example, ETheRnEt 802.3 is a commonlY UsEd local areA neTwork (LAN) scheMe iN which MuLtiPLe staTioNs are ConnecTEd to a sHared or deDiCAted seRIal data PATh. thesE stations often comMUnICate with a switcH or somE oTHeR NEtwOrk Device locaTeD betwEEn the daTA pATH And THe stations conNected to thaT PatH. The swItCh tYPicallY contRoLS thE communicatIon oF data and iNcludeS Logic foR ReceiviNg and fOrwArdIng dATa FrAmeS tO TheIR aPprOPriAte destiNaTiOns.
CoNvenTIONAl neTwoRk swItcheS typically incLudE an aDDreSs tabLe thaT stoReS switChing iNformAtIon associated wiTh foRwarding tHe rEcEivEd Data fRAmes. SuCh sWitChes oftEn incluDE an AgING MeChanism that automatIcALLy Deletes aDdress TAbLe ENtries thAt CorRespOND to neTworK StAtions thAt have NOt TrAnsmittEd Any datA fRamEs dUring A PredEtermiNed perioD of tiME. This enables thE Network switch TO hAVE sPAce fOr nEw address enTrieS AssoCiatED wIth ACtive NetwoRk STaTIons.
In some situationS, aN exterNal maNagement entitY may interfACE With the nEtwoRK sWItch. For example, The exTernal manaGEment entIty maY be involVed in progRAMming varIouS fuNctIonS ASsOciated with thE NEtwoRk Switch. THe eXternal ManAgeMenT enTiTy may also Require iNfOrMaTiOn rEgardINg statioN aDdrEsSes For seCUrity rEasonS or fOr OtHEr rEasons. FOR eXAMple, In A hIgh sEcuRiTy swiTch, tHE exTernal mAnagement EntITy maY bE rEquired To approve new eNtRies in the aDdResS table. iN Order to mAke a new entry in the addresS Table, thE exTernaL manAgement enTitY needs To kNOw whicH locatIons aRe AvaILAble. THIS iNveNtIon relates TO EngIne baLaNcinG and, morE particularly, to a coMBinAtion oil pump aNd bAlanCE ShAft MOdULe fOr ATtaCHMent to an engine fRame or cranKcASe.
it is known iN The ArT relatiNg to recIprocATing pisTon engineS to providE oNe or MORe bAlance shafTs with baLance weigHTs to oFFsEt varIouS types Of EngIne unBalancE CreAted bY the arRaNgemenT of thE rOtating aNd reciprocating componenTs of thE engiNe. SUch balancE shAFts May be mounTed aT various loCatIonS in or On tHE engiNe, dePEnDinG On the PartICular type OF uNbaLANcE forces invoLVED anD the sPacE AvailaBle wIthin or around the eNGine envelope. In Some CASes, It iS ConvEnIent to provide oNe oR mORE balance ShAfts located Within a mOdULe whiCh may bE separAtely asSEMbLEd and tHen aTtaChed to the FraMe OR crankcAsE oF An engiNe, soMeTimes fOr operATion WIThin the engine oil Pan.
ThE PResenT InvEntioN pRovides SUch a Balance shaFt module for MountiNg beLow thE engine FrAme or cRanKcAse. The moduLE includes A housIng suppOrTing A baLance sHaft GEAred tO the EnGinE crankshaFT AnD HaViNG baLancE weigHtS at oPposite enDS which arE roTAted to oFfSet UNBalancE FoRCEs developeD by The enGINe componenTS. CovERs ARe proVided aRound
 high ER stress and thus m odulate gl ucose  ho meo st asis  cou ld be of great bene fit. In computer netwo rks,an umbe r  o f net work st a ti o n s a re  t ypi ca l ly  inte rco nnected  via a com mun ic ations mediu m .For exampl e,Ethernet 802 .3is a c om mon l y use d l ocalarea n e twork(LAN) sch em e  in wh i ch mult i p le  sta tions are connect e dt o a shared ordedica te d  s e r ial  da ta path. T he se st a tions o f te n c omm u nicate with a  switch ors ome  other  n etw o rk dev ice l oc a ted  between th e da ta path a nd the station s  connec ted to  th atpath .  T he  sw it c h t y pi cal l y c ontrolsth ecommu nica t i o n  ofdat a an d inc ludes logic f orrece i vin g and  forw ardi ng  data  frame s toth eir appropriate  des tinations .
C on ven ti onaln etwork  sw itc hes typ icallyi ncl ud e a naddress table that  s t o re s switch ing in f or ma t ion asso ci ate d wi t h  forw ardi n gthe rece ived d a ta  f rames.Su ch swi tc hes  of ten i n clud e an a ging mec hanis m  that automati c ally deletesa dd r e ss tabl e e ntries that  cor r espo nd t o  n etw o rk st ation st ha t  have not transmitt ed  any d ata f rames duringa predeter m i n ed perio d of ti m e. This enable s the  network s w itch tohavespace fo r new add r e ss entri esass oci ate d wi th active net w o rk s ta tions.Insome si tua tio ns,  an  e xternal m anagemen ten ti ty  ma y int e rface wi th  th enet works witch.  Forexam pl e, the  extern a lm a nage me nt  ent ity  m ay be  inv o lve d in pr ogramming  va r ious  f un ctionsassociated wi th  the netwo rk  sw itch.T h e extern al management entity ma y  also r equ ire i nfor mation re gar ding s tat i on add resses  forse cur i t y rea s o ns  or  f or other r e a son s. Fo rexam ple, in  a high security s w itc h, the extern almana g e me nte nt i tyma y  be r equired to appr ove new en tr i es  in the ad d res stable.In orde r tom ake a n ew entryin the ad dr esst a ble , the exte rnal man agement e n tityn ee ds to  kn ow whi ch  lo catio ns are ava ilabl e. Thi sinvent ion r el ates toengine balancing and, m ore pa rticu lar ly, to acom b ina tion oilpump  and balan cesha ft mo dul e  foratta c hm ent to an  eng i ne frameo rcra n k ca se.
It is k n o w n i n the  ar t  relat ingto reciprocatingp iston enginesto p r o vid e o n e or  m ore balance sh aft sw i th balan ce  weights to  offsetva r ioustypesof eng ine unb a l an c e crea tedbythe arran gem en t  of the  r ot a ting a nd r ec iproca ting c o mpon e n ts of the engine . Suc h balan c e s hafts  m ay be m o unte d at vario us location s in o r on  theengine,  d ependi ngon  the parti c ular type  of u nbalanc eforc esinvolv ed a n d  thespac eava ilable wi t h in or  a r oun d th e eng in e en velope. I n  some ca ses ,  it isco nve n i ent to pr o v ide one or  mo re ba l a nce shafts loca t ed withi n a mo dule w hich ma y  be  s eparate lya s sembled a nd then a t tac he d to  the fra me  orcr ank ca se of an engine , someti mes foro p eratio n w i thin the en gi ne oil pan.The p re s ent inv e n tio n provi d essuc h a  bal anc e sh a ft module for mounting b elow  thee ngi ne fr ame o rcrankcas e . Th e module includes a ho using supportin g  ab alan ces ha ft  geared t o t h e eng inecra nksh aft  and h avin g  bal a nc e we ightsat o pp os ite endswh ich are rota t edto o ffset  u nb a la nce for ces deve loped  b y the eng i ne comp onen ts . Covers areprovided aro un d
 high_ER stress_and thus modulate glucose_homeostasis could_be_of great_benefit._In computer networks,_a number of_network stations are typically_interconnected via a_communications_medium. For example, Ethernet 802.3 is a commonly used local area network (LAN) scheme_in_which multiple_stations_are_connected to a shared or_dedicated serial data path. These_stations often_communicate with a switch or some other network_device_located between the_data path and the stations connected to that path._The switch typically controls the communication_of data and_includes_logic_for receiving and forwarding_data frames to their appropriate destinations.
Conventional_network switches typically include an address_table that stores switching information associated with_forwarding the received data frames. Such_switches often include an aging_mechanism that_automatically deletes address table entries_that correspond to_network stations_that have not_transmitted any data frames during a_predetermined period of_time. This enables the network switch_to_have space for_new_address_entries associated_with active network_stations.
In_some situations,_an_external management entity may interface with_the_network switch. For example, the external management_entity may be involved_in_programming various functions associated_with the network switch. The_external management entity may also require_information regarding_station addresses_for security reasons or for other reasons. For example, in a_high security switch, the external management_entity may be required_to approve_new_entries in the_address_table. In_order to make a new entry in_the address_table, the external management entity needs_to know which locations_are_available. This invention relates to engine_balancing and, more particularly, to a_combination oil pump and balance_shaft_module_for attachment to an engine_frame or crankcase.
It is known in_the art relating_to reciprocating piston engines to provide one_or_more balance shafts with balance weights_to_offset various types of engine unbalance_created_by_the arrangement of the rotating_and reciprocating components of the engine._Such balance shafts may be mounted at various locations_in or on_the engine, depending on the_particular_type_of unbalance forces involved and the space available within or_around the_engine envelope. In_some cases, it is convenient to provide one or more_balance shafts located within a module which_may be separately assembled and then attached to the frame or_crankcase of an engine, sometimes for operation within_the engine oil pan.
The present invention provides_such a balance shaft_module_for mounting below the engine frame or_crankcase._The_module_includes a housing_supporting a balance_shaft geared to_the engine_crankshaft and having_balance weights_at opposite ends_which_are rotated to offset unbalance forces developed by the engine components. Covers are provided around